Phylogeography, genetic diversity, and intraspecific genetic structure of the black‐horned capuchin ( Sapajus nigritus )
Dados Bibliográficos
Recent molecular studies have clarified the overarching taxonomy of capuchin monkeys, but intraspecific genetic diversity remains unexplored for most capuchin species. One example is Sapajus nigritus , the southernmost capuchin monkey, found in Brazil and Argentina; its phenotypic diversity has been recognized as two geographic subspecies, but the intraspecific genetic structure of this taxon is poorly known. Here, we sampled across most of this species' geographic distribution, producing a newly sequenced data set for genetic analyses that included 78 individuals from 14 populations. We investigated the intraspecific diversity, genetic structure, and evolutionary history using three mitochondrial markers. Our results indicated that S. nigritus populations exhibited high levels of genetic structure. We found strong support for two monophyletic clades within this species with a deep phylogenetic split, and clear separation from other related taxa. Vicariance events seem to have played a prevalent role in shaping S. nigritus genetic differentiation. The Paraíba do Sul River may have driven the deep divergence between southern and northern clades, whereas the Tietê River may have had a weaker, more recent effect on the divergence of populations within the southern clade
Biology · Clade · Evolutionary biology · Genetic divergence · Genetic diversity · Genetic structure · Genetic variation · Intraspecific competition · Monophyly · Phylogenetic tree · Phylogeography · Population · Subspecies · Vicariance · Zoology · Animal Behavior and Reproduction · Animal Vocal Communication and Behavior · Primate Behavior and Ecology · Ecology · Genetics
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