178 results on '"Stojković, Biljana"'
Search Results
2. Water treatment by cavitation: Understanding it at a single bubble - bacterial cell level
- Author
-
Pandur, Žiga, Zevnik, Jure, Podbevšek, Darjan, Stojković, Biljana, Stopar, David, and Dular, Matevž
- Published
- 2023
- Full Text
- View/download PDF
3. First report of viola white distortion associated virus on pansy violets ( Viola x wittrockiana ) in Serbia
- Author
-
Stanković, Ivana, Zečević, Katarina, Vučurović, Ana, Petrović, Branka, Delibašić, Goran, Stojković, Biljana, and Krstić, Branka
- Published
- 2021
4. Sex‐specific consequences of host shift for morphology and fluctuating asymmetry in a seed beetle: an experimental evolution approach
- Author
-
Rončević, Aleksa, primary, Savković, Uroš, additional, Đorđević, Mirko, additional, Vlajnić, Lea, additional, Stojković, Biljana, additional, and Budečević, Sanja, additional
- Published
- 2024
- Full Text
- View/download PDF
5. Transgenerational Sub-Lethal Pyrethroid Exposure Affects Shape Variation and Fluctuating Asymmetry in Seed Beetles.
- Author
-
Budečević, Sanja, Predojević, Dragana, Đorđević, Mirko, Vlajnić, Lea, Stojković, Oliver, Stojković, Biljana, and Savković, Uroš
- Subjects
POLLUTION ,AGRICULTURAL pollution ,INSECTICIDE resistance ,PYRETHROIDS ,XENOBIOTICS ,CYPERMETHRIN - Abstract
One method of crop protection is the application of a widely used group of pesticides—pyrethroids. As xenobiotics, sub-lethal doses of insecticides cause stress in pests, resulting in a change in the shape and size of their organs or bodies. The stress caused by pesticides may lead to acute destabilization of development, but also to transgenerational canalization through the process of genetic assimilation. Fluctuating asymmetry (FA), small random deviations between the right and left sides of bilaterally symmetrical traits, is an outcome of developmental instability and is a measurable indicator of phenotypic response to stress. We exposed four populations of the seed beetle Acanthoscelides obtectus to sub-lethal doses of cypermethrin for ten generations in a laboratory evolution experiment. Using geometric morphometrics, we analyzed size and shape changes and the level of fluctuating asymmetry in untreated beetles and in samples from the fifth and tenth generation. Exposure over ten generations led to an increase in the body size of the beetles, shortening of their pronotum and elongation of their thorax and abdomen. After ten generations of exposure to cypermethrin, FA levels decreased, indicating a canalization of development. This study provides new insights into the phenotypic markers of environmental pollution from agricultural activities. [ABSTRACT FROM AUTHOR]
- Published
- 2024
- Full Text
- View/download PDF
6. The consequences of sexual selection in well-adapted and maladapted populations of bean beetles
- Author
-
Martinossi-Allibert, Ivain, Savković, Uroš, Ðorđević, Mirko, Arnqvist, Göran, Stojković, Biljana, and Berger, David
- Published
- 2018
7. The pace-of-life : A sex-specific link between metabolic rate and life history in bean beetles
- Author
-
Arnqvist, Göran, Stojkovic, Biljana, Rönn, Johanna L., and Immonen, Elina
- Published
- 2017
8. Sex-specific mitonuclear epistasis and the evolution of mitochondrial bioenergetics, ageing, and life history in seed beetles
- Author
-
Ðordević, Mirko, Stojković, Biljana, Savković, Uroš, Immonen, Elina, Tucić, Nikola, Lazarević, Jelica, and Arnqvist, Göran
- Published
- 2017
9. Divergent evolution of life span associated with mitochondrial DNA evolution
- Author
-
Stojković, Biljana, Sayadi, Ahmed, Ðordević, Mirko, Jović, Jelena, Savkovic, Uroš, and Arnqvist, Göran
- Published
- 2017
10. Development of unipolarity and multipolarity in new age
- Author
-
Stojković Biljana
- Subjects
geopolitics ,strategy ,unipolatiry ,multipolarity ,security ,threat ,Military Science - Abstract
This paper focuses on analyzing geopolitical changes at the beginning of the 21st century and their effect on the strategic context of contemporary asymmetric threats. Therefore, the distinction between unipolarity and multipolarity as the concepts that are taken into consideration when assessing the modern security environment is emphasized and concrete asymmetric forms of security threats such as religious and national extremism, terrorism, organized crime, migration, etc. are presented. Bearing in mind that the mentioned challenges, risks and threats to security are manifested at the global, regional and national level, the paper reviews strategic responses and concrete measures undertaken by the United Nations, the European Union, national armed forces and civil society. Based on this, the conclusion is drawn that implementation of the concept of integral security at the national level, as well as security cooperation at the international level - contributes to gaining a comprehensive approach to this contemporary problem with the best outcomes.
- Published
- 2017
- Full Text
- View/download PDF
11. Analiza drevne DNK iz uzoraka nekropole Mokrin (2100-1800 p.n.e.): rekonstrukcija biološkog srodstva u kontekstu društvene strukture bronzanodopske populacije
- Author
-
Stojković, Biljana, Stefanović, Sofija, Porčić, Marko, Jovanović, Jelena, Savić-Pavićević, Dušanka, Žegarac, Aleksandra, Stojković, Biljana, Stefanović, Sofija, Porčić, Marko, Jovanović, Jelena, Savić-Pavićević, Dušanka, and Žegarac, Aleksandra
- Abstract
Analiza biološkog srodstva u arheologiji pruža uvid u problematiku rođačkih odnosa u kontekstu organizovanja strukture društva i prenosa statusa i materijalnog bogatstva sa generacije na generaciju. Razvoj paleogenetike, kroz analizu drevne DNK i u određivanje srodstva, doprineo je razumevanju socijalne organizacije i socijalnih promena u ranim egalitarnim i hijerarhijski organizovanim društvima. Dvadeset četiri petrozne kosti sa rano-bronzanodopske nekropole u Mokrinu analizirane su novom generacijom sekvenciranja kako bi se uvidilo postoji li vertikalna i horizontalna socijalna diferencijacija na ovoj nekropoli i na koji način su se materijalni i socijalni status nasleđivali. Analizom srodstva detektovano je 9 porodičnih veza koje uključuju 15 individua. Sveukupni podaci sugerišu da su bogatstvo i status vezani za pol individue: dok sinovi nisu nasleđivali socijalni status od bioloških majki, ali su imali priliku da ga zasluže tokom života, žene su mogle naslediti status od majki ili ga postići putem socijalnih veza. Genetički podaci takođe sugerišu da se ne može prihvatiti hipoteza o podeljenosti nekropole na južni i severni deo na osnovu porodičnih veza. Veliki diverzitet uniparentalnih genetičkih markera sugeriše da društvo u Mokrinu nije bilo matrilokalno, ali i da nije bilo strogo patrilokalno, dok procenjeni koeficijent inbridinga ukazuje na odsustvo genetičke strukturiranosti. Osnovne populacione analize na populaciji sa Mokrina ne pokazuju nikakvo odstupanje od očekivanih proporcija porekla karakterističnog za bronzano doba, niti uzorci izlaze iz opsega genetičke varijabilnosti savremenih populacija u Evropi. Na istim uzorcima procenjena je učestalost alela funkcionalnih markera za depigmentaciju kože i toleranciju na mleko. Izvedeni aleli povezani sa svetlom kožom i plavim očima prisutni su u populaciji sa Mokrina, dok je učestalost alela za toleranciju laktoze kod 18 uzoraka sa Mokrina niska., Detecting biological relatedness is significant in archeology as it is believed that kinship ties were important in organization of societies and that they were the main mechanism of transgenerational transmission of status and wealth. With development of paleogenetics field, ancient DNA became efficient tool in determining kinship in order to better understand social organization and social changes in early egalitarian and hierarchical societies. Twenty-four petrous bones from Early Bronze Age Mokrin necropolis were sequenced with NGS method to address the hypotheses regarding vertical and horizontal stratification of the necropolis and to obtain information whether the wealth and status were hereditary. Nine kin relationships were identified among 15 individuals. The observed results indicate that the wealth and status were depended on the individuals’ sex: men could not inherit status from their biological mothers, but they probably could achieve it during life, while women could inherit the status or accomplish it through their links with prestigious individuals. aDNA analyses could not confirm hypothesis regarding the division of necropolis into Northern and Southern parts in which each community was integrated through kinship ties. The great variability of uniparental genetic markers indicates that Mokrin society was not matriliear, but it was also not a strictly patrilocal, while estimated inbreeding coefficient indicates that the population was genetically unstructured. The basic population analyses do not show any unexpected results of ancestry proportions, and all Mokrin samples could be placed within genetic variation of modern Europeans. Frequency of alleles for skin depigmentation markers and lactose tolerance were also estimated in Mokrin population. Derived alleles associated with light hair and blue eyes are detected, while the frequency of allele for lactose tolerance in 18 Mokrin samples is low.
- Published
- 2023
12. Viscoelastic Properties of Levan-DNA Mixtures Important in Microbial Biofilm Formation as Determined by Micro- and Macrorheology
- Author
-
Stojković, Biljana, Sretenovic, Simon, Dogsa, Iztok, Poberaj, Igor, and Stopar, David
- Published
- 2015
- Full Text
- View/download PDF
13. Methodological base for development of a new national action plan to implement the Resolution 1325
- Author
-
Stojković Biljana and Forca Božidar
- Subjects
method ,plan ,analysis ,women ,security ,Military Science - Abstract
The paper discusses the matter of the methodological base for development of a national action plan to implement the United Nations Security Council Resolution 1325 – Women, Peace and Security in the Republic of Serbia (2016-2020). The reason for the consideration of this matter is the fact that the Government of the Republic of Serbia, after the successful application of the previous five-year National Action Plan (2010-2015), decided on 25 December 2015 to form a working group to develop a new national action plan. Professional and scientific challenges with which the working group was faced are the backbone of this paper referring to a valid selection and use of methods, techniques and instruments of action research in order to accomplish the tasks set by the Government. Therefore, this paper provides a concise insight in the methodology of this plan development in its first phase, which is crucial for the further process of designing this action document in the Republic of Serbia.
- Published
- 2016
- Full Text
- View/download PDF
14. Eastern question and the Ukrainian crisis
- Author
-
Stojković Biljana
- Subjects
geopolitics ,history of diplomacy ,eastern question ,ukrainian crisis ,Military Science - Abstract
This paper looks into little-known former history of separatist tendencies of the population of the Crimea and eastern Ukraine, but also gives a scientific explanation of what the so-called Eastern Question has meant in the diplomatic history and the history of international relations, as it is still reflected in the present geopolitical situation of a large number of Eastern European and Balkan countries. It refers to the maxim that the history is 'a teacher of life' and leads to a conclusion that it could certainly be argued that the history of diplomacy is a 'teacher' of contemporary international political relations. In other words, based on historical facts, one comes to a conclusion that today almost nothing happens unless in the past it had its origins in a complex diplomatic game of the most powerful European dynasties, as well as the royal and military elites, international organizations and high religious circles of the Orthodox, Roman Catholic and Islamic provenance, from the late 16th to the late 20th century. These were the times of a dangerous 'diplomatic game' played for geopolitical supremacy in the Mediterranean, through the resolution of the status of the Crimea, and also the status of 'the cradle of Christianity' in Kiev, Eastern Europe. The aforementioned conflicting interests culminated in the divisions and diplomatic and military conflicts that 'renamed' then Malorussia in Ukraine, and in the 21st century led to a bloody civil, political and religious divisions and the armed conflict in Ukraine.
- Published
- 2015
- Full Text
- View/download PDF
15. Experimental Life History Evolution Results in Sex-specific Evolution of Gene Expression in Seed Beetles
- Author
-
Immonen, Elina, primary, Sayadi, Ahmed, additional, Stojković, Biljana, additional, Savković, Uroš, additional, Đorđević, Mirko, additional, Liljestrand-Rönn, Johanna, additional, Wiberg, R Axel W, additional, and Arnqvist, Göran, additional
- Published
- 2022
- Full Text
- View/download PDF
16. Evolution of developmental plasticity and the potential of host shift in the seed beetle: Insights from laboratory evolution experiments
- Author
-
Savković, Uroš, primary, Đorđević, Mirko, additional, Vlajnić, Lea, additional, Budečević, Sanja, additional, and Stojković, Biljana, additional
- Published
- 2022
- Full Text
- View/download PDF
17. Adaptive phenotypic plasticity of gypsy moth digestive enzymes
- Author
-
Mrdaković Marija, Stojković Biljana, Perić-Mataruga Vesna, Ilijin Larisa, Vlahović Milena, and Lazarević Jelica
- Subjects
lymantria dispar l. ,allelochemical stress ,response to selection ,cost of plasticity ,Biology (General) ,QH301-705.5 - Published
- 2014
- Full Text
- View/download PDF
18. On the hierarchy of strategic documents
- Author
-
Forca Božidar and Stojković Biljana
- Subjects
strategy ,nation ,security ,the military ,hierarchy ,document ,Military Science - Abstract
The paper discusses the problem of further strategic development of the Republic of Serbia on the basis of hierarchically ordered system of strategic documents. This paper is a result of years of study of strategy as a science under development, theory, skills, and documents, with special emphasis on the results of the comparative analysis of national and foreign strategic documents. Looking at the experiences of about a dozen countries in the world and comparing them with the current practice in the Republic of Serbia, this paper emphasizes the importance of logical consistency, mutual interdependence and hierarchical arrangement of the system of the nation's strategic development. Proceeding from an analysis of the current situation in the Republic of Serbia, it points to the inconsistency of the fact that the strategy of sustainable development is being nationally prepared, adopted and implemented, without including the sustainable development in the field of security. In addition, the paper deliberately encourages further discussion of strategists, security experts, officials of the Ministry of Defense, members of the Serbian Armed Forces, and public officials about the necessity that, after the adoption of the national strategy, the national development strategy, the national security strategy and the defense strategy, the development of military strategy should be also addressed in the Republic of Serbia to complete the hierarchical series of the strategic documents.
- Published
- 2014
- Full Text
- View/download PDF
19. Intergenomic Interactions in Hybrids Between Short-Lived and Long-Lived Lines of a Seed Beetle: Analyses of Life History Traits
- Author
-
Đorđević, Mirko, Savković, Uroš, Lazarević, Jelica, Tucić, Nikola, and Stojković, Biljana
- Published
- 2015
- Full Text
- View/download PDF
20. The growth on different stored legume species affects the profiles of cuticular hydrocarbon (CHC) in Acanthoscelides obtectus (Say)
- Author
-
Savković, Uroš, Vučković, Ivan, and Stojković, Biljana
- Published
- 2012
- Full Text
- View/download PDF
21. An early mechanical coupling of planktonic bacteria in dilute suspensions
- Author
-
Sretenovic, Simon, Stojković, Biljana, Dogsa, Iztok, Kostanjšek, Rok, Poberaj, Igor, and Stopar, David
- Published
- 2017
- Full Text
- View/download PDF
22. Gender differences in longevity in early and late reproduced lines of the seed beetle
- Author
-
Stojković Biljana and Savković U.
- Subjects
Sexual selection ,sexual conflict ,longevity ,ageing ,mortality rate ,Biology (General) ,QH301-705.5 - Abstract
In most animals the average longevity of females is greater than that of males. Among the many explanations of the evolution of sex-specific mortality rates, we tested the hypothesis that sexual selection plays an important role in shaping the longevity and ageing of both sexes. The present study was performed using laboratory populations of Acanthoscelides obtectus, which were obtained either at an early (E) or late (L) age, where the inadvertently created conditions provided opportunities for the evolution of a monogamous and polygamous mating system, respectively. As predicted, under intense sexual selection (L populations) substantial sex differences in longevity were detected both in mated and virgin experimental beetles. On the other hand, monogamy, i.e. relaxation of sexual selection, in E populations resulted in elimination of the differences in longevity between mated females and males, and even led to postponed senescence of virgin males beyond the level exhibited by virgin females.
- Published
- 2011
- Full Text
- View/download PDF
23. Experimentally induced host-shift changes life-history strategy in a seed beetle
- Author
-
SAVKOVIĆ, UROŠ, ĐORĐEVIĆ, MIRKO, ŠEŠLIJA JOVANOVIĆ, DARKA, LAZAREVIĆ, JELICA, TUCIĆ, NIKOLA, and STOJKOVIĆ, BILJANA
- Published
- 2016
- Full Text
- View/download PDF
24. Evolution of developmental plasticity and the potential of host shift in the seed beetle: Insights from laboratory evolution experiments.
- Author
-
Savković, Uroš, Đorđević, Mirko, Vlajnić, Lea, Budečević, Sanja, and Stojković, Biljana
- Subjects
INSECT host plants ,BEETLES ,CHICKPEA ,HOST plants ,PHYTOPHAGOUS insects ,INSECT development ,COMMON bean - Abstract
Expansion of the host range in phytophagous insects, followed by the specialisation on novel hosts, encompasses changes in many aspects of insects' behaviour, physiology, and the interaction between their life‐history features.Here, we analyse the roles of insects' developmental plasticity in the process of host shift. Using laboratory populations of the seed beetle (Acanthoscelides obtectus), which have evolved on both optimal (common beans) and suboptimal (chickpea) plant hosts for more than 35 years, we experimentally replicated the process of host shift and analysed the patterns of short‐term and long‐term life‐history responses to host variation.In order to test whether selection for increased plasticity has an effect on host shifting processes, we used existing bean and chickpea adapted populations to establish new populations in which the host plant offered for insect development was changed each generation (for 13 generations). To test the potential for a short‐term plastic response, beetles from each laboratory population were raised on both hosts for one generation.Results showed that, in contrast to the populations that evolved on beans, which maintained high levels of developmental plasticity, long‐term host switching to chickpeas was accompanied with specialisation of pre‐adult viability with a simultaneous increase in fecundity. Populations evolved on alternate plant hosts that revealed similar plasticity patterns as their ancestral populations.These results suggest that short‐term plastic responses could determine the paths of long‐term evolution of life‐history plasticity. However, more time could be needed for plasticity to evolve differently from the initial responses. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
25. Experimental Life History Evolution Results in Sex-specific Evolution of Gene Expression in Seed Beetles.
- Author
-
Immonen, Elina, Sayadi, Ahmed, Stojković, Biljana, Savković, Uroš, Đorđević, Mirko, Liljestrand-Rönn, Johanna, Wiberg, R Axel W, and Arnqvist, Göran
- Subjects
LIFE history theory ,GENE expression ,BEETLES ,LONGEVITY ,FUNCTIONAL analysis - Abstract
The patterns of reproductive timing and senescence vary within and across species owing to differences in reproductive strategies, but our understanding of the molecular underpinnings of such variation is incomplete. This is perhaps particularly true for sex differences. We investigated the evolution of sex-specific gene expression associated with life history divergence in replicated populations of the seed beetle Acanthoscelides obtectus , experimentally evolving under (E)arly or (L)ate life reproduction for >200 generations which has resulted in strongly divergent life histories. We detected 1,646 genes that were differentially expressed in E and L lines, consistent with a highly polygenic basis of life history evolution. Only 30% of differentially expressed genes were similarly affected in males and females. The evolution of long life was associated with significantly reduced sex differences in expression, especially in non-reproductive tissues. The expression differences were overall more pronounced in females, in accordance with their greater phenotypic divergence in lifespan. Functional enrichment analysis revealed differences between E and L beetles in gene categories previously implicated in aging, such as mitochondrial function and defense response. The results show that divergent life history evolution can be associated with profound changes in gene expression that alter the transcriptome in a sex-specific way, highlighting the importance of understanding the mechanisms of aging in each sex. [ABSTRACT FROM AUTHOR]
- Published
- 2023
- Full Text
- View/download PDF
26. Resistance to prooxidant agent paraquat in the short- and long-lived lines of the seed beetle (Acanthoscelides obtectus)
- Author
-
Lazarević, Jelica, Đorđević, Mirko, Stojković, Biljana, and Tucić, Nikola
- Published
- 2013
- Full Text
- View/download PDF
27. Host-shift effects on mating behavior and incipient pre-mating isolation in seed beetle
- Author
-
Stojković, Biljana, Savković, Uroš, Đorđević, Mirko, and Tucić, Nikola
- Published
- 2014
- Full Text
- View/download PDF
28. Ancient genomes provide insights into family structure and the heredity of social status in the early Bronze Age of southeastern Europe
- Author
-
Žegarac Aleksandra, Winkelbach Laura, Blöcher Jens, Diekmann Yoan, Krečković Gavrilović Marija, Porčić Marko, Stojković Biljana, Milašinović Lidija, Schreiber Mona, Wegmann Daniel, Veeramah Krishna, Stefanović Sofija, and Burger Joachim
- Subjects
Adult ,Male ,Heredity ,Adolescent ,Science ,Human Migration ,930 History of ancient world ,Young Adult ,930 Alte Geschichte ,Early Bronze Age ,Humans ,Mokrin ,Child ,ancient DNA ,kinship ,History, Ancient ,Genome, Human ,Middle Aged ,Prognosis ,Survival Rate ,Genetics, Population ,Psychological Distance ,Social Class ,Child, Preschool ,Medicine ,Female ,Family Relations ,Follow-Up Studies - Abstract
Twenty-four palaeogenomes from Mokrin, a major Early Bronze Age necropolis in southeastern Europe, were sequenced to analyse kinship between individuals and to better understand prehistoric social organization. 15 investigated individuals were involved in genetic relationships of varying degrees. The Mokrin sample resembles a genetically unstructured population, suggesting that the community’s social hierarchies were not accompanied by strict marriage barriers. We find evidence for female exogamy but no indications for strict patrilocality. Individual status differences at Mokrin, as indicated by grave goods, support the inference that females could inherit status, but could not transmit status to all their sons. We further show that sons had the possibility to acquire status during their lifetimes, but not necessarily to inherit it. Taken together, these findings suggest that Southeastern Europe in the Early Bronze Age had a significantly different family and social structure than Late Neolithic and Early Bronze Age societies of Central Europe.
- Published
- 2020
29. Biological Kinship and Inheritance of Social Status in the Early Bronze Age: Paleogenetic Analysis of the Mokrin Necropolis in Serbia
- Author
-
Žegarac, Aleksandra, Winkelbach, Laura, Diekmann, Yoan, Krečković Gavrilović, Marija, Porčić, Marko, Stojković, Biljana, Veeramah, Krishna R, Burger, Joachim, and Stefanović, Sofija
- Subjects
aDNA, social organization, Early Bronze Age, Mokrin, Maros culture - Abstract
The Early Bronze Age necropolis of Mokrin in Serbia (2100-1800 cal BC), which belongs to Maros culture, has a great significance for the study of kinship relationships and social organization. As the other necropolises of the Maros culture, Mokrin had a highly standardized funerary ritual: the deceased were laid to rest in a couched position, arms bent at the elbows and facing east, while the position of the skeletons depended on the sex. The graves were equipped with various burial objects - from simple ceramics to golden jewellery, and previous studies have identified weapons and certain types of jewellery as status markers. Graves of the children followed the burial rituals of the adults and had similar grave goods. Since the Early Bronze Age is a period of great social change, the study of biological kinship can be crucial when it comes to determining whether wealth and social status were inherited or achieved. By analysing the ancient genomic data of 24 individuals (14 adults and 10 children) from the Mokrin necropolis, we were able to identify nine family relationships. The analysis of biological relationships, together with anthropological (age and sex) and archaeological data (variation in the number and quality of grave goods), suggest that status was probably not inherited by male children, as it was previously observed in other Bronze Age societies. With this study, we show that the inheritance of social status does not necessarily have to follow universal patterns, but may well show regional variations. This study also represents a stepping stone for future research of the social transformations in the Early Bronze Age of Balkans and Europe. 
- Published
- 2020
- Full Text
- View/download PDF
30. Sexual Dimorphism and Morphological Modularity in Acanthoscelides obtectus (Say, 1831) (Coleoptera: Chrysomelidae): A Geometric Morphometric Approach
- Author
-
Budečević, Sanja, primary, Savković, Uroš, additional, Đorđević, Mirko, additional, Vlajnić, Lea, additional, and Stojković, Biljana, additional
- Published
- 2021
- Full Text
- View/download PDF
31. Cortical stiffness of keratinocytes measured by lateral indentation with optical tweezers
- Author
-
Zemljič Jokhadar, Špela, primary, Stojković, Biljana, additional, Vidak, Marko, additional, Sorčan, Tjaša, additional, Liovic, Mirjana, additional, Gouveia, Marcos, additional, Travasso, Rui D. M., additional, and Derganc, Jure, additional
- Published
- 2020
- Full Text
- View/download PDF
32. Kinship, acquired and inherited status, and population structure at the Early Bronze Age Mokrin necropolis in northern Serbia
- Author
-
Žegarac, Aleksandra, primary, Winkelbach, Laura, additional, Blöcher, Jens, additional, Diekmann, Yoan, additional, Gavrilović, Marija Krečković, additional, Porčić, Marko, additional, Stojković, Biljana, additional, Milašinović, Lidija, additional, Schreiber, Mona, additional, Wegmann, Daniel, additional, Veeramah, Krishna R., additional, Stefanović, Sofija, additional, and Burger, Joachim, additional
- Published
- 2020
- Full Text
- View/download PDF
33. Od ćelije do domena — evolucija života na zemlјi
- Author
-
Stojković, Biljana, Stojković, Biljana, Đorđević, Mirko, Savković, Uroš, Miličić, Dragana, Milutinović-Đorđević, Desa, Alaburić, Sanja, Luković, Aleksandar, Stevanović-Maran, Aleksandra, Stojković, Biljana, Stojković, Biljana, Đorđević, Mirko, Savković, Uroš, Miličić, Dragana, Milutinović-Đorđević, Desa, Alaburić, Sanja, Luković, Aleksandar, and Stevanović-Maran, Aleksandra
- Published
- 2018
34. Neurobiološko objašnjenje svesti
- Author
-
Radenović, Ljiljana, Perović, Slobodan, Stojković, Biljana, Zorić, Aleksandra, Simić, Dušan M., Radenović, Ljiljana, Perović, Slobodan, Stojković, Biljana, Zorić, Aleksandra, and Simić, Dušan M.
- Abstract
Glavni cilj ovog rada jeste formulisanje modela svesti koji bi uspeo da prevaziđe prigovore i probleme sa kojim su se suočavali svi dosadašnji neurobiološki modeli. Najveći izazov je odgovor na pitanje kako je moguće da neki materijalni sistem, poput mozga, proizvede subjektivno iskustvo. Kao što ću pokazati, odgovor se nalazi u načinu na koji je mozak organizovan i njegovoj sposobnosti da proizvede posebnu vrstu kauzalnih interakcija (neprekidnu kauzalnu samoreferencu). Model svesti koji predlažem se oslanja na dinamičke modele prema kojima je svest globalno sistemsko svojstvo. Prema hipotezi neprekidne kauzalne samoreference koju ću zastupati, organizacija ima nesvodivu ulogu u stvaranju novih svojstava. Svest se ne može u potpunosti objasniti svođenjem na osnovne materijalne konstituente, već je ona suštinski relaciono svojstvo tih konstituenata. Objašnjenje svesti ne možemo naći u pojedinačnim gradivnim jedinicama mozga, neuronima, već u načinu na koji su oni organizovani. Istraživanja (Bressler and Kelso, 2016) (Tognoli and Kelso, 2014) (Kelso, 2012) pokazuju da postoje svojstva koja se nalaze na nivou celog sistema, koja proizilaze iz relacija među konstituentima a koja se ne mogu pronaći na nivou bazičnih konstituenata. Svest je dinamički proces, neprekidno menjajuća struktura kauzalnih relacija među konstituentima sistema. U skladu sa tim pokušaću da pokažem da se svest kao svojstvo pojavljuje u slučajevima kada materija i relacije između njenih elemenata imaju posebnu kauzalnu konfiguraciju. Kao glavnu teorijsku i empirijsku podršku toj hipotezi koristiću modele i eksperimentalnu evidenciju različitih autora koji zastupaju dinamičke teorije svesti poput Tononija, Edelmana, Spornsa i drugih. Navedeni autori implicitno podržavaju ontologiju u kojoj relacije spadaju u osnovna primitivna svojstva stvarnosti. (Sporns, Chialvo, Kaiser and Hilgetag, 2004) (Edelman and Tononi, 2000) (Olaf Sporns, 2010) (Tononi and Koch, 2015). U prvom poglavlju ću pokazati kakav je, The main goal of this paper is to formulate a model of consciousness that would overcome the objections and problems faced by all neurobiological models to date. The biggest challenge is answering the question of how it is possible for a material system, such as the brain, to produce subjective experience. As I will show, the answer lies in the way the brain is organized and its ability to produce a special kind of causal interactions (continuous causal self-reference). The model of consciousness I propose relies on the dynamic models according to which consciousness is a global property of the system. According to the hypothesis of continuous causal self-reference that I will present, organization plays an irreducible role in creating new properties. Consciousness cannot be fully explained by reduction to basic material constituents, but it is rather essentially a relational property of those constituents. We cannot find an explanation of consciousness in the individual building blocks of the brain, neurons. It is in the way they are organized. Research (Bressler and Kelso, 2016) (Tognoli and Kelso, 2014) (Kelso, 2012) shows that there are properties that can be found on the level of the system as a whole, that arise from relationships among constituents, but that cannot be found at the level of basic constituents. Consciousness is a dynamic process, a constantly changing structure of causal relations between the constituents of a system. Accordingly, I will try to show that consciousness as a property occurs in cases where matter and the relations between its elements have a special causal configuration. As the main theoretical and empirical support for this hypothesis, I will use models and experimental record of various authors representing dynamic theories of consciousness such as Tononi, Edelman, Sporns and others. Listed authors implicitly support the ontology in which relations belong to the basic primitive properties of reality. (Sporns, Chialvo, Kaiser and
- Published
- 2020
35. Sex-specific effects of candidate Trojan Female Technique haplotype on fertility in pest species Acanthoscelides obtectus
- Author
-
Vlajnić, Lea, Savković, Uroš, Stojković, Biljana, and Đorđević, Mirko
- Subjects
Pest control ,Acanthoscelides obtectus ,fungi ,food and beverages ,Mother's curse ,Mitonuclear interaction - Abstract
Pest species pose one of the biggest threats to global agriculture, economy and human health. Thus, there is ongoing effort to implement pest control techniques that are often costly and detrimental for environment and non-target species. The Trojan Female Technique (TFT) is a novel approach to pest management via control of reproductive output. The goal of the TFT is to use naturally occurring mtDNA mutations which impair male fertility, but have no effects on females, to achieve sustained pest population suppression. Although described in fruit flies, the candidate TFT mutations have not yet been documented in pest species. In order to identify and test possible TFT candidates for biological control of seed beetle Acanthoscelides obtectus, a common pest in legume storages, we expressed four mtDNA haplotypes found in laboratory lines selected for late reproduction/long life alongside nuclear background of wild populations. Analysis of the effect of specific mitotypes on female and male reproductive potential showed significant male-only reduction in fertility in just one mito-nuclear combination. More specifically, the fertility of males carrying MG3a haplotype was reduced for more than 40% relative to MG3a females. This result indicates MG3a as a promising candidate for further development of the TFT in seed beetles.
- Published
- 2019
36. Cortical stiffness of keratinocytes measured by lateral indentation with optical tweezers
- Author
-
Jokhadar, Špela Zemljič, primary, Stojković, Biljana, additional, Vidak, Marko, additional, Liovic, Mirjana, additional, Gouveia, Marcos, additional, Travasso, Rui D.M., additional, and Derganc, Jure, additional
- Published
- 2020
- Full Text
- View/download PDF
37. Mass of Lamium purpureum seeds from contrasting light habitats
- Author
-
Tomić Danijela, Barišić Nataša, Jojić Vida, Stojković Biljana M., and Tarasjev Aleksej A.
- Subjects
Biology (General) ,QH301-705.5 - Published
- 2002
- Full Text
- View/download PDF
38. Potential for Acanthoscelides obtectus to Adapt to New Hosts Seen in Laboratory Selection Experiments
- Author
-
Savković, Uroš, primary, Đorđević, Mirko, additional, and Stojković, Biljana, additional
- Published
- 2019
- Full Text
- View/download PDF
39. Objašnjenje u biologiji: sintetička teorija evolucije i evoluciona biologija razvića
- Author
-
Kamerer, Eva, Lazović, Živan, Perović, Slobodan, Stojković, Biljana, Berber, Andrea, Kamerer, Eva, Lazović, Živan, Perović, Slobodan, Stojković, Biljana, and Berber, Andrea
- Abstract
Cilj ovog istraživanja je da utvrdi u kakvom su odnosu sintetička teorija evolucije i evoluciona biologija razvića, odnosno, da li su suprotstavljene ili ne. Na ovo pitanje ćemo pokušati da damo odgovor tako što ćemo uporediti eksplanatorne domene dva istraživačka programa i nastojati da utvrdimo da li su oni istovetni, komplementarni, ili se delimično preklapaju. Detaljno ćemo analizirati pojmovne i eksplanatorne razlike između sintetičke teorije evolucije i evolucione biologije razvića. Zatim ćemo razmatrati kakva je veza selekcije i razvića u objašnjenju evolucionih fenomena. Nastojaćemo da pokažemo da razviće, koje određuje domen dostupne varijacije, može biti eksplanatorno relevanato i za razumevanje osobina na populacionom nivou. Argumentovaćemo da je nemoguće odgovoriti na značajna evoluciona pitanja, vezana za smer i tempo evolucije, ukoliko ne uzmemo u obzir uticaj razvića na evoluciju. Razmatraćemo i predlog koji je iznela Lindzi Kreg da se odnos između sintetičke teorije evolucije i evolucione biologije razvića može posmatrati kao sukob oko relativnog značaja. Branićemo stav da je rešenje koje predlaže Kregova suštinski nepotpuno (opisuje samo kvantitativne, ne i kvalitativne aspekte sukoba), i da je prvo neophodno razumeti promene koje je nastanak evolucione biologije razvića uveo u eksplanatorni domen evolucione teorije, a tek onda razmatrati kako taj domen treba biti podeljen. Na osnovu naše analize, nastojaćemo da pokažemo da je sintetička teorija evolucije pretrpela dve vrste suženja: relativno i realno. Oba tipa pokazuju da je sintetička teorija nedovoljna da samostalno obezbedi potpuno objašnjenje evolucije. Naš zaključak je da evoluciona biologija razvića proširuje eksplanatorni domen evolucione teorije u celini i da donosi nova eksplanatorna sredstva za razumevanje evolucionih
- Published
- 2019
40. This title is unavailable for guests, please login to see more information.
- Author
-
Kamerer, Eva, Lazović, Živan, Perović, Slobodan, Stojković, Biljana, Berber, Andrea, Kamerer, Eva, Lazović, Živan, Perović, Slobodan, Stojković, Biljana, and Berber, Andrea
- Published
- 2019
41. Morfološko variranje, fenotipska plastičnost i fluktuirajuća asimetrija oblika cvetnih organa kod Iris pumila L.
- Author
-
Ivanović, Ana, Manitašević-Jovanović, Sanja, Stojković, Biljana, Rakić, Tamara, Budečević, Sanja, Ivanović, Ana, Manitašević-Jovanović, Sanja, Stojković, Biljana, Rakić, Tamara, and Budečević, Sanja
- Abstract
Analize unutar - i među - individualnihih razlika morfoloških struktura omogućuju otkrivanje obrazaca fenotipskog variranja, kao i ekološko - evolucionih mehanizama koji dovode do njihove divergencije. U ovoj disertaciji utvrđene su komponente fenotipske varijanse oblika funkcionalno različitih cvetnih organa kod entomofilne biljne vrste Iris pumila L., polimorfne u odnosu na boju cveta. Eksperimenti su vršeni na biljkama gajenim u eksperimentalnoj bašti, poreklom iz recipročnih ukrštanja 24 klonalna genotipa. Metodama geometrijske morfometrije utvrđeni su obrasci variranja oblika tri bilateralno simetrična organa: fola, standarda i grane tučka. Kod sva tri organa udeo simetrične komponente u ukupnom variranju oblika bio je najveći, dok je fluktuirajuća asimetrija (FA) dominirala u asimetričnoj komponenti. Iako se smatra da je primarni uzrok FA nestabilnost razvića, naša istraživanja su pokazala da fenotipska plastičnost može takođe da proizvede FA. Naime, replike cvetnih organa sa različitom orijentacijom prema suncu imale su različite vrednosti asimetričnih komponenti varijanse oblika, kao rezultat plastičnosti u odnosu na mikrosredinsku heterogenost ambijentalne svetlosti. Da veličina, oblik i boja cveta predstavljaju vizuelne signale za privlačenje potencijalnih oprašivača potvrdila su poređenja veličine cvetnih organa oprašenih i neoprašenih biljaka. Oprašeni cvetovi su, po pravilu, imali veće organe od neoprašenih, sa izuzetkom grane tučka. Regresione analize su pokazale da je veličina fola bila pod delovanjem pozitivne, a grane tučka negativne direkcione selekcije. Suprotno tome, oblik cvetnih organa se razlikovao u zavisnosti od boje, što ukazuje da je preferencija oprašivača prema specifičnim kombinacijama vizuelnih signala bila važan mehanizam morfološke divergencije reproduktivnih organa I. pumila., Analyzes of intra - and inter - individual differences of morphological structures allow the detection of patterns of phenotypic variation, as well as ecological evolutionary mechanisms leading to their divergence. In this dissertation, components of the phenotypic variation of the shape of functionally distinctive flower organs were determined in the entomophilous plant, specific for striking flower color polymorphism, Iris pumila L. Experiments were carried out on plants grown in experimental garden, originating from reciprocal crossing of 24 clonal genotypes. Using the methods of geometric morphometrics patterns of variation of the shape of three bilaterally symmetrical organs (falls, standards and style branches) have been revealed. In all three floral organs, the proportion of the symmetric component in the overall shape variation was the highest, while the fluctuating asymmetry (FA) was dominated in asymmetric component. Although it is thought that primary cause of FA is developmental instability, our research has shown that phenotypic plasticity can also produce FA. Namely, replicas of flower organs with different orientations towards the sun had different values of asymmetric components of variance of the shape, as an outcome of plasticity in relation to the microenvironmental heterogeneity of ambient light. In this dissertation it is confirmed that size, shape and color of flowers are visual attractants for pollinators. Pairwase comparisons in size between pollinated and unpollinated flowers revealed that pollinated falls and standards are bigger related to their unpollinated pairs. Regression analyzes have shown that the size of the falls was under positive selection, while size of style branches was under negative direct selection. In contrast, the shape of the flower organs differed depending on their color, indicating that the pollinator's MORPHOLOGICAL VARIATION, PHENOTYPIC PLASTICITY AND FLUCTUATING ASYMMETRY OF FLORAL ORGAN SHAPES IN Iris pumila L. A
- Published
- 2019
42. Hibridizacija, morfološka varijabilnost i stabilnost razvića velikih mrmoljaka (Triturus spp.)
- Author
-
Ivanović, Ana, Cvijanović, Milena, Stojković, Biljana, Vučić, Tijana, Ivanović, Ana, Cvijanović, Milena, Stojković, Biljana, and Vučić, Tijana
- Abstract
Hibridizacija može imati različite evolucione i ekološke ishode. Veliki mrmoljci (Triturus spp.) formiraju hibridne zone u kojima učestvuju vrste različitog stepena filogenetske srodnosti i predstavljaju pogodan model sistem za ispitivanje procesa i mehanizama hibridizacije i njenih ishoda. Vrste T. ivanbureschi i T. macedoncius hibridizuju u centralnoj i istočnoj Srbiji formirajući specifičnu zonu u kojoj dolazi do zamene vrsta i asimetrične introgresije mitohondrijske DNK uz postojanje vijabilnih hibridnih populacija. Relativno sličan scenario sreće se u zapadnoj Francuskoj gde T. cristatus i T. marmoratus hibridizuju i produkuju sterilne hibride. Ciljevi ove doktorske disertacije su određivanje parametara koji su doprineli formiranju i održavanju hibridne zone, kao i procena uticaja hibridizacije na vijabilitet, morfološku varijabilnost (sa posebnim osvrtom na složeni životni ciklus i metamorfozu) i stabilnost razvića hibrida i roditeljskih vrsta. Podaci su prikupljani tokom tri godine intra- i interspecijskog eksperimentalnog ukrštanja, kao i analizom materijala iz prirodnih populacija. Praćeni su parametri rane životne istorije, ontogenija i disparitet oblika tela i uticaj hibridizacije na stabilnost razvića. Morfološka varijabilnost i stabilnost razvića procenjeni su metodama geometrijske morfometrije. Triturus macedonicus odlikuje se većim reproduktivnim potencijalom u odnosu na T. ivanbureschi, što je moglo da omogući početak širenja areala. Hibridizacija smanjuje vijabilitet jaja, ali ne i embriona. Hibridi se morfološki razlikuju od obe roditeljske vrste i uglavnom su intermedijarni. Larveno razviće je kanalisano, dok su stupnjevi kada jedinke dolaze u kontakt sa novom sredinom (izvaljivanje larvi i metamorfoza) izuzetno varijabilni. Hibridizacija ne utiče na stabilnost razvića velikih mrmoljaka., Hybridization can have various evolutionary and ecological outcomes. Large-bodied newts (Triturus spp.) hybridize mutually regardless of the degree of genetic similarity. This characteristic makes them a good model system to explore hybridization, as well as hybridization outcomes. Triturus ivanbureschi and T. macedonicus have specific species displacement scenario which includes hybridization in Serbia, wide zone of asymmetric mtDNA introgression and viable hybrid populations. Relatively similar species displacement scenario is found in France, where T. cristatus and T. marmoratus hybridize, but their hybrids are sterile. The main aims of this doctoral dissertation are to establish parameters which enabled formation and maintenance of hybrid and introgressive zone and to estimate effects of hybridization on viability, morphological variation (with special emphasis on complex, biphasic life cycle and metamorphosis) and developmental stability. The data was collected during a three-year hybridization experiment, as well as from natural populations. The early life history parameters, ontogeny and disparity of body shape, and the effects of hybridisation on developmental stability were recorded. Morphological variability and developmental stability were analysed by geometric morphometrics. Triturus macedonicus have higher reproductive output compared to T. ivanbureschi which could be an advantage at the initial species contact. Hybridization reduces egg viability, but not the viability of embryos. Hybrids are morphologically divergent from parental species, with mostly intermediate position relative to parental species. Larval development is highly canalized, while the ontogenetic stages when newts confront new environment (hatching and metamorphosis) are highly variable. Hybridization does not affect developmental stability.
- Published
- 2019
43. Interaction between mitochondrial and nuclear genomes: the role in life-history evolution
- Author
-
Stojković, Biljana and Đorđević, Mirko
- Subjects
Life-history evolution ,mitochondria ,mtDNA ,nucleus ,nDNA ,life-history evolution ,OXPHOS ,Nucleus ,Mitochondria - Abstract
The evolution of eukaryotes is based on dynamic coevolutionary interactions between the two genomes, nuclear (nDNA) and mitochondrial (mtDNA). Current evidence suggests that the origin of eukaryotes corresponds to the origin of mitochondria. The primary center of adenosine triphosphate (ATP) production through the process of oxidative phosphorylation (OXPHOS), which is based on the functioning of four large protein complexes that are responsible for the proton gradient across the inner mitochondrial membrane. These complexes in the electron transport chain (ETC) are composed of polypeptides encoded by both mitochondrial and nuclear genes. In order to preserve the uncompromised functionality of mitochondria, i.e. the adequate coupling of all interacting subunits in OXPHOS, the two genomes had to coevolve. In other words, mitonuclear compatibilities are required for optimal life-history of an organism because even minor biochemical inefficiency can have major fitness consequences by modulating energetic efficiency and oxidative stress levels. The link between life-history evolution and mitonuclear interactions is deeply rooted within the mechanisms of energy metabolism. The coevolved epistatic interactions between mitochondria and nucleus determine the amount of energy available for all biological functions. Selective optimization of one life-history function (e.g. reproduction) may come at the cost of reduced competence for somatic maintenance, viability and survival due to mutually exclusive energy allocation to distinct functions. Different approaches in investigating the central roles of mitochondrial metabolic processes and mitonuclear epistasis in life-history evolution are discussed in this paper. Biologia Serbica (2017), 39(1): 32-40
- Published
- 2017
- Full Text
- View/download PDF
44. This title is unavailable for guests, please login to see more information.
- Author
-
Kovačević-Grujičić, Nataša, Stevanović, Milena, Stojković, Biljana, Aleksić, Jelena, Davidović, Slobodan, Kovačević-Grujičić, Nataša, Stevanović, Milena, Stojković, Biljana, Aleksić, Jelena, and Davidović, Slobodan
- Abstract
Genetic structure and clinal distribution of genetic variation in contemporary human populations in Europe are the results of interplay between exceptionally complex evolutionary, demographic and cultural processes which took place in Europe during several thousand years. Among the most important processes are post-glacial recolonization of Europe, spread of farming during the Neolithic period (Neolithic transition) and numerous migrations of human populations such as Bronze Age migrations of Indo-Europeans and migrations during the Migration Period that occurred in the Early Middle Ages. The Balkan Peninsula played an important role during the entire history of humankind in Europe and Asia because it served as an important migration corridor starting from prehistoric to present days. Furthermore, during the last glacial maximum, this region was one of the glacial refugia from which the post-glacial recolonization of Europe was initiated. Since Serbian population inhabits the central part of the Balkan Peninsula, this population may harbour genetic traces of past complex demographic processes that were occurring in the Balkans over time.The subject of this doctoral thesis was the study of the mitochondrial DNA (mtDNA) variability in a contemporary population of Serbia from population genetics, phylogenetic and phylogeographic aspects. For that purpose, the variability of HVS-I and HVS-II regions and polymorphisms within the coding region of mtDNA have been assessed in 172 individuals whose Serbian maternal ancestry was confirmed for at least two generations. Furthermore, 58 selected mitogenomes were completely sequenced in order to provide new insights into the evolution of particular mtDNA haplogroups and to assess the contribution of various human migrations in modelling contemporary maternal gene pool of the Serbian population.Serbian population comprises mainly mtDNA haplogroups/subhaplogroups typical for European populations and their frequencies and levels of
- Published
- 2018
45. This title is unavailable for guests, please login to see more information.
- Author
-
Kovačević-Grujičić, Nataša, Stevanović, Milena, Stojković, Biljana, Aleksić, Jelena, Davidović, Slobodan B., Kovačević-Grujičić, Nataša, Stevanović, Milena, Stojković, Biljana, Aleksić, Jelena, and Davidović, Slobodan B.
- Abstract
Genetic structure and clinal distribution of genetic variation in contemporary human populations in Europe are the results of interplay between exceptionally complex evolutionary, demographic and cultural processes which took place in Europe during several thousand years. Among the most important processes are post-glacial recolonization of Europe, spread of farming during the Neolithic period (Neolithic transition) and numerous migrations of human populations such as Bronze Age migrations of Indo-Europeans and migrations during the Migration Period that occurred in the Early Middle Ages. The Balkan Peninsula played an important role during the entire history of humankind in Europe and Asia because it served as an important migration corridor starting from prehistoric to present days. Furthermore, during the last glacial maximum, this region was one of the glacial refugia from which the post-glacial recolonization of Europe was initiated. Since Serbian population inhabits the central part of the Balkan Peninsula, this population may harbour genetic traces of past complex demographic processes that were occurring in the Balkans over time. The subject of this doctoral thesis was the study of the mitochondrial DNA (mtDNA) variability in a contemporary population of Serbia from population genetics, phylogenetic and phylogeographic aspects. For that purpose, the variability of HVS-I and HVS-II regions and polymorphisms within the coding region of mtDNA have been assessed in 172 individuals whose Serbian maternal ancestry was confirmed for at least two generations. Furthermore, 58 selected mitogenomes were completely sequenced in order to provide new insights into the evolution of particular mtDNA haplogroups and to assess the contribution of various human migrations in modelling contemporary maternal gene pool of the Serbian population. Serbian population comprises mainly mtDNA haplogroups/subhaplogroups typical for European populations and their frequencies and levels o
- Published
- 2018
46. Host-associated divergence in the activity of digestive enzymes in two populations of the gypsy moth Lymantria dispar (Lepidoptera: Erebidae)
- Author
-
Lazarević, Jelica, Janković-Tomanić, Milena, Savković, Uroš, Đorđević, Mirko, Milanović, Slobodan, and Stojković, Biljana
- Subjects
α-amylase ,Leucine aminopeptidase ,animal structures ,fungi ,Host plant adaptation ,Trypsin ,Phenotypic plasticity ,Development - Abstract
The gypsy moth is a generalist insect pest with an extremely wide host range. Adaptive responses of digestive enzymes are important for the successful utilization of plant hosts that differ in the contents and ratios of constituent nutrients and allelochemicals. In the present study, we examined the responses of α-amylase, trypsin, and leucine aminopeptidase to two tree hosts (suitable oak, Quercus cerris, and unsuitable locust tree, Robinia pseudoacacia) in the fourth, fifth, and sixth instars of gypsy moth larvae originating from oak and locust tree forest populations (hereafter assigned as Quercus and Robinia populations, respectively). Gypsy moths from the Robinia forest had been adapting to this unsuitable host for more than 40 generations. To test for population-level host plant specialization, we applied a two-population × two-host experimental design. We compared the levels, developmental patterns, and plasticities of the activities of enzymes. The locust tree diet increased enzyme activity in the fourth instar and reduced activity in advanced instars of the Quercus larvae in comparison to the oak diet. These larvae also exhibited opposite developmental trajectories on the two hosts, i.e. activity increased on the oak diet and decreased on the locust tree diet with the progress of instar. Larvae of the Robinia population were characterized by reduced plasticity of enzyme activity and its developmental trajectories. In addition, elevated trypsin activity in response to an unsuitable host was observed in all instar larvae of the Robinia population, which demonstrated that Robinia larvae had an improved digestive performance than did Quercus larvae.
- Published
- 2017
- Full Text
- View/download PDF
47. Host expansion modifies activity of phosphatases in a legume store pest Acanthoscelides obtectus (Say)
- Author
-
Janković-Tomanić, Milena, Jovanović, Darka Šešlija, Savković, Uroš, Đorđević, Mirko, Stojković, Biljana, and Lazarević, Jelica
- Published
- 2015
- Full Text
- View/download PDF
48. Protocols for evaluating local bacterial viscoelastic environment and mechanical coupling in dilute bacterial suspensions
- Author
-
Stopar, David, primary, Sretenovic, Simon, additional, Stojković, Biljana, additional, Dogsa, Iztok, additional, Kostanjšek, Rok, additional, Poberaj, Igor, additional, and Stopar, David, additional
- Published
- 2018
- Full Text
- View/download PDF
49. Sex-specific mitonuclear epistasis and the evolution of mitochondrial bioenergetics, ageing, and life history in seed beetles
- Author
-
Đorđević, Mirko, Stojković, Biljana, Savković, Uroš, Immonen, Elina, Tucić, Nikola, Lazarević, Jelica, and Arnqvist, Göran
- Subjects
Sexual dimorphism ,mtDNA ,Epistasis ,Evolution of ageing ,Bruchinae ,Senescence ,Coadaptation ,OXPHOS ,Ssenescence ,Mitochondria - Abstract
The role of mitochondrial DNA for the evolution of life-history traits remains debated. We examined mitonuclear effects on the activity of the multisubunit complex of the electron transport chain (ETC) involved in oxidative phosphorylation (OXPHOS) across lines of the seed beetle Acanthoscelides obtectus selected for a short (E) or a long (L) life for more than >160 generations. We constructed and phenotyped mitonuclear introgression lines, which allowed us to assess the independent effects of the evolutionary history of the nuclear and the mitochondrial genome. The nuclear genome was responsible for the largest share of divergence seen in ageing. However, the mitochondrial genome also had sizeable effects, which were sex-specific and expressed primarily as epistatic interactions with the nuclear genome. The effects of mitonuclear disruption were largely consistent with mitonuclear coadaptation. Variation in ETC activity explained a large proportion of variance in ageing and life-history traits and this multivariate relationship differed somewhat between the sexes. In conclusion, mitonuclear epistasis has played an important role in the laboratory evolution of ETC complex activity, ageing, and life histories and these are closely associated. The mitonuclear architecture of evolved differences in life-history traits and mitochondrial bioenergetics was sex-specific. The final publication is available at Evolution (N Y). 2017;71(2):274–88. [http://ibiss-r.rcub.bg.ac.rs/123456789/2600] Evolution (2016)
- Published
- 2016
- Full Text
- View/download PDF
50. Uloga evolucionih interakcija između intracelularnog endosimbionta (Wolbachia) i fitoplazme (Flavescence dorée) u promenama komponenti adaptivne vrednosti i pravcima evolucije mitohondrijske DNK u prirodnim populacijama Dictyophara europaea
- Author
-
Krstić, Oliver, Stojković, Biljana, Jović, Jelena, Tomanović, Željko, Toševski, Ivo, Krstić, Oliver, Krstić, Oliver, Stojković, Biljana, Jović, Jelena, Tomanović, Željko, Toševski, Ivo, and Krstić, Oliver
- Abstract
Dictyophara europaea je široko rasprostranjena i ekonomski značajna cikada koja kaoalternativni vektor Flavescence dorée (FD) fitoplazme, učestvuje u prenošenju bolesti uvinogradima Evrope. Sprovedena epidemiološka istraživanja su ukazala na postojanjepopulacija D. europaea sa veoma visokom stopom FD-infekcije, Wolbachia-inficiranihpopulacija sa niskom stopom FD-infekcije (DeWo+) i odsustvo Wolbachia upopulacijama sa visokom stopom FD-infekcije (DeWo-). Ispitivano je nekolikomogućih uzroka raličite stope infekcije vektora: i) populaciono-genetičke karakteristikeD. europaea i korelacija sa Wolbachia infekcijom, ii) efekat Wolbachia na komponenteadaptivne vrednosti laboratorijske kolonije DeWo+, i iii) stopa inficiranosti prirodnogbiljnog rezervoara FD fitoplazme i razlike u genotipovima fitoplazme u nisko- i visokoinficiranimpopulacijama. Genotipizacijom mitohondrijskog COI gena evidentiran jesmanjen genetički diverzitet DeWo+ u poređenju sa DeWo- populacijama i različitaevolucija fiksiranih haplotipova. Multilokusnom genotipizacijom Wolbachia izolataidentifikovan je isti soj, wEur, u svim DeWo+ populacijama. Diverzitet FD fitoplazmenije bio u korelaciji sa različitom stopom inficiranosti vektora. Utvrđeno je daWolbachia-infekcija nema direktnog efekta na adaptivnu vrednost D. europaea. Podaciiz prirodnih populacija D. europaea ukazuju na kompeticiju Wolbachia i FD fitoplazme:populacije koje su u niskoj stopi inficirane FD fitoplazmom su Wolbachia-inficirane ivice versa., Dictyophara europaea is widespread planthopper of economic importance, acting as analternative vector of the Flavescence dorée (FD) phytoplasma disease of grapevine inEuropean vineyards. Epidemiological studies have revealed D. europaea populationsthat are heavily FD-infected, as well as populations with low FD-infection rates that arenaturally infected with Wolbachia (DeWo+), and highly FD-infected populations in theabsence of Wolbachia (DeWo-).Several possible causes of differences in vectorinfection rates were examined: i) population genetic characteristics of D. europaea andtheir correlation with Wolbachia infection, ii) Wolbachia effects on fitness componentsof DeWo+ laboratory colony, and iii) the rate of reservoir plant FD-infection anddifferences in FD genotypes harboured by low and high infected vector populations.Genotyping of mitochondrial COI loci showed lower genetic diversity level in DeWo+than in DeWo- populations of and divergent evolution of fixed haplotypes. Multilocusgenotyping of Wolbachia revealed that all DeWo+ populations were infected with thesame strain (i.e. wEur). Genetically diversified FD phytoplasma had no direct influenceon vector infection rates. No evidence of direct fitness effects on D. europaea wasregistered with regard to Wolbachia infection status. Field data and the observednegative correlation between FD-infection and Wolbachia-infection rates, indicate thatWolbachia compete with FD phytoplasma within the host insect D. europaea.
- Published
- 2017
Catalog
Discovery Service for Jio Institute Digital Library
For full access to our library's resources, please sign in.