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Mitochondrial phylogenomics of modern and ancient Equids
- Source :
- Mouatt, J T V, Seguin-Orlando, A, Stiller, M, Ginolhac, A, Raghavan, M, Nielsen, S C A, Weinstock, J, Froese, D, Vasiliev, S K, Ovodov, N D, Clary, J, Helgen, K M, Fleischer, R C, Cooper, A, Shapiro, B & Orlando, L A A 2013, ' Mitochondrial phylogenomics of modern and ancient equids ', PLoS ONE, vol. 8, no. 2, pp. e55950 . https://doi.org/10.1371/journal.pone.0055950, PLoS ONE, Vol 8, Iss 2, p e55950 (2013), PLoS ONE
- Publication Year :
- 2013
-
Abstract
- The genus Equus is richly represented in the fossil record, yet our understanding of taxonomic relationships within this genus remains limited. To estimate the phylogenetic relationships among modern horses, zebras, asses and donkeys, we generated the first data set including complete mitochondrial sequences from all seven extant lineages within the genus Equus. Bayesian and Maximum Likelihood phylogenetic inference confirms that zebras are monophyletic within the genus, and the Plains and Grevy’s zebras form a well-supported monophyletic group. Using ancient DNA techniques, we further characterize the complete mitochondrial genomes of three extinct equid lineages (the New World stilt-legged horses, NWSLH; the subgenus Sussemionus; and the Quagga, Equus quagga quagga). Comparisons with extant taxa confirm the NWSLH as being part of the caballines, and the Quagga and Plains zebras as being conspecific. However, the evolutionary relationships among the non-caballine lineages, including the now-extinct subgenus Sussemionus, remain unresolved, most likely due to extremely rapid radiation within this group. The closest living outgroups (rhinos and tapirs) were found to be too phylogenetically distant to calibrate reliable molecular clocks. Additional mitochondrial genome sequence data, including radiocarbon dated ancient equids, will be required before revisiting the exact timing of the lineage radiation leading up to modern equids, which for now were found to have possibly shared a common ancestor as far as up to 4 Million years ago (Mya).
- Subjects :
- Evolutionary Genetics
0106 biological sciences
Time Factors
Lineage (evolution)
lcsh:Medicine
01 natural sciences
Monophyly
Molecular Systematics
Molecular clock
lcsh:Science
Genome Evolution
Phylogeny
0303 health sciences
Multidisciplinary
Genus Equus
Ecology
biology
Fossils
Paleogenetics
Genomics
Phylogenetics
Subgenus
Research Article
Evolutionary Processes
Vertebrate Paleontology
Zoology
010603 evolutionary biology
03 medical and health sciences
Animals
Evolutionary Systematics
Horses
Selection, Genetic
Adaptation
Biology
Taxonomy
030304 developmental biology
Evolutionary Biology
lcsh:R
Computational Biology
Paleontology
Bayes Theorem
Comparative Genomics
biology.organism_classification
Equus
Ancient DNA
Evolutionary Ecology
Evolutionary biology
Animal Taxonomy
Genome, Mitochondrial
lcsh:Q
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Journal :
- Mouatt, J T V, Seguin-Orlando, A, Stiller, M, Ginolhac, A, Raghavan, M, Nielsen, S C A, Weinstock, J, Froese, D, Vasiliev, S K, Ovodov, N D, Clary, J, Helgen, K M, Fleischer, R C, Cooper, A, Shapiro, B & Orlando, L A A 2013, ' Mitochondrial phylogenomics of modern and ancient equids ', PLoS ONE, vol. 8, no. 2, pp. e55950 . https://doi.org/10.1371/journal.pone.0055950, PLoS ONE, Vol 8, Iss 2, p e55950 (2013), PLoS ONE
- Accession number :
- edsair.doi.dedup.....9bdb5696195c94c55abefa7d9f49dade