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1. Molecular cytotaxonomy of the Triatoma brasiliensis species subcomplex (Hemiptera, Triatominae)

Author

Jader de Oliveira, Elaine Folly-Ramos, Fernanda Fernandez Madeira, Luiza Maria Grzyb Delgado, Kaio Cesar Chaboli Alevi, Maurício Lilioso, João Aristeu da Rosa, Maria Tercília Vilela de Azeredo-Oliveira, Isadora de Freitas Bittinelli, Universidade Estadual Paulista (Unesp), Universidade Estadual de Campinas (UNICAMP), and Universidade Federal da Paraíba (UFPB)

Subjects
0301 basic medicine, Paraphyly, Male, Chagas disease vectors, Veterinary (miscellaneous), 030231 tropical medicine, macromolecular substances, Biology, CMA3/DAPI fluorochromes, 03 medical and health sciences, Monophyly, Cytogenetics, 0302 clinical medicine, parasitic diseases, Animals, Triatoma, Triatominae, Cytotaxonomy, Taxonomy, Autosome, Chromosome, Genetic Variation, 030108 mycology & parasitology, South America, biology.organism_classification, Classification, Triatoma brasiliensis, Insect Vectors, Infectious Diseases, Evolutionary biology, Insect Science, Parasitology
Abstract

Made available in DSpace on 2020-12-12T01:43:23Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-01-01 Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP) The Triatoma genus is paraphyletic, and its species are grouped into complexes and subcomplexes. Given the fact that species that make up a given subcomplex generally share chromosomal traits, we analyzed the distribution of AT- and CG-rich DNA of the T. brasiliensis species subcomplex, in order to establish affinities among members of the T. brasiliensis subcomplex based on chromatin and chromosome traits and develop an identification key for the four monophyletic Triatoma subcomplexes from South America. All species exhibited a CG-rich X sex chromosome and autosomes, as well as an AT-rich Y sex chromosome. This feature can be used as a diagnostic characteristic to determine whether a given species is a member of the T. brasiliensis subcomplex, because it enables the differentiation of these species from all Triatoma of South America. Thus, we confirmed the chromosomal relationship of the T. brasiliensis species subcomplex and developed a dichotomous key based on the chromocenter to differentiate the species from this subcomplex from the other monophyletic Triatoma subcomplexes from South America. Laboratório de Parasitologia Departamento de Ciências Biológicas Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista “Júlio de Mesquita Filho” FCFAR/UNESP, Rodovia Araraquara-Jaú km 1 Laboratório de Biologia Celular Departamento de Biologia Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista “Júlio de Mesquita Filho” IBILCE/UNESP, Rua Cristóvão Colombo 2265 Instituto de Biologia Universidade Estadual de Campinas IB/UNICAMP, Rua Monteiro Lobato, 255 Laboratório de Ecologia Animal Departamento de Engenharia e Meio Ambiente Centro de Ciências Aplicadas e Educação Universidade Federal de Paraíba CCAE/UFPB, Av. Santa Elizabete, 160 Laboratório de Parasitologia Departamento de Ciências Biológicas Faculdade de Ciências Farmacêuticas Universidade Estadual Paulista “Júlio de Mesquita Filho” FCFAR/UNESP, Rodovia Araraquara-Jaú km 1 Laboratório de Biologia Celular Departamento de Biologia Instituto de Biociências Letras e Ciências Exatas Universidade Estadual Paulista “Júlio de Mesquita Filho” IBILCE/UNESP, Rua Cristóvão Colombo 2265 FAPESP: 2013/19764-0 FAPESP: 2017/21359-8

Published
2019

2. Molecular cytotaxonomy of the Triatoma brasiliensis species subcomplex (Hemiptera, Triatominae).

Author

Alevi, Kaio Cesar Chaboli, Bittinelli, Isadora de Freitas, Delgado, Luiza Maria Grzyb, Madeira, Fernanda Fernandez, de Oliveira, Jader, Lilioso, Maurício, Folly-Ramos, Elaine, da Rosa, João Aristeu, and Azeredo-Oliveira, Maria Tercília Vilela

Subjects
*CONENOSES, *SEX chromosomes, *CYTOTAXONOMY, *Y chromosome, *X chromosome, *KARYOTYPES, *HEMIPTERA
Abstract

• We analyzed the distribution of AT- and CG-rich DNA of the Triatoma brasiliensis species subcomplex. • All species exhibited a CG-rich X sex chromosome and autosomes, as well as an AT-rich Y sex chromosome. • We developed a dichotomous key based on the chromocenter to differentiate the species from this subcomplex from the other monophyletic Triatoma subcomplexes from South America. The Triatoma genus is paraphyletic, and its species are grouped into complexes and subcomplexes. Given the fact that species that make up a given subcomplex generally share chromosomal traits, we analyzed the distribution of AT- and CG-rich DNA of the T. brasiliensis species subcomplex, in order to establish affinities among members of the T. brasiliensis subcomplex based on chromatin and chromosome traits and develop an identification key for the four monophyletic Triatoma subcomplexes from South America. All species exhibited a CG-rich X sex chromosome and autosomes, as well as an AT-rich Y sex chromosome. This feature can be used as a diagnostic characteristic to determine whether a given species is a member of the T. brasiliensis subcomplex, because it enables the differentiation of these species from all Triatoma of South America. Thus, we confirmed the chromosomal relationship of the T. brasiliensis species subcomplex and developed a dichotomous key based on the chromocenter to differentiate the species from this subcomplex from the other monophyletic Triatoma subcomplexes from South America. [ABSTRACT FROM AUTHOR]

Published
2020
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