The Influence of Social Systems on Patterns of Mitochondrial DNA Variation in Baboons

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2014
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Ferreira da Silva, Maria J.
Brito, José Carlos
Regnaut, Sebastian
Roos, Christian
Zinner, Dietmar
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International journal of primatology. 2014, 35(1), pp. 210-225. ISSN 0164-0291. eISSN 1573-8604. Available under: doi: 10.1007/s10764-013-9725-5
Zusammenfassung

Behavior is influenced by genes but can also shape the genetic structure of natural populations. Investigating this link is of great importance because behavioral processes can alter the genetic diversity on which selection acts. Gene flow is one of the main determinants of the genetic structure of a population and dispersal is the behavior that mediates gene flow. Baboons (genus Papio) are among the most intensely studied primate species and serve as a model system to investigate the evolution of social systems using a comparative approach. The general mammalian pattern of male dispersal and female philopatry has thus far been found in baboons, with the exception of hamadryas baboons (Papio hamadryas). As yet, the lack of data on Guinea baboons (Papio papio) creates a taxonomic gap in genus-wide comparative analyses. In our study we investigated the sex-biased dispersal pattern of Guinea baboons in comparison to hamadryas, olive, yellow, and chacma baboons using sequences of the maternally transmitted mitochondrial hypervariable region I. Analyzing whole-range georeferenced samples (N = 777), we found strong evidence for female-biased gene flow in Guinea baboons and confirmed this pattern for hamadryas baboons, as shown by a lack of genetic-geographic structuring. In addition, most genetic variation was found within and not among demes, in sharp contrast to the pattern observed in matrilocal primates including the other baboon taxa. Our results corroborate the notion that the Guinea baboons' social system shares some important features with that of hamadryas baboons, suggesting similar evolutionary forces have acted to distinguish them from all other baboons.

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Fachgebiet (DDC)
570 Biowissenschaften, Biologie
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Genetic population structure, Hypervariable region I, Papio, Sex-biased dispersal, Social system
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ISO 690KOPP, Gisela H., Maria J. FERREIRA DA SILVA, Julia FISCHER, José Carlos BRITO, Sebastian REGNAUT, Christian ROOS, Dietmar ZINNER, 2014. The Influence of Social Systems on Patterns of Mitochondrial DNA Variation in Baboons. In: International journal of primatology. 2014, 35(1), pp. 210-225. ISSN 0164-0291. eISSN 1573-8604. Available under: doi: 10.1007/s10764-013-9725-5
BibTex
@article{Kopp2014Influ-46052,
  year={2014},
  doi={10.1007/s10764-013-9725-5},
  title={The Influence of Social Systems on Patterns of Mitochondrial DNA Variation in Baboons},
  number={1},
  volume={35},
  issn={0164-0291},
  journal={International journal of primatology},
  pages={210--225},
  author={Kopp, Gisela H. and Ferreira da Silva, Maria J. and Fischer, Julia and Brito, José Carlos and Regnaut, Sebastian and Roos, Christian and Zinner, Dietmar}
}
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