Population Genomic Analysis Reveals a Rich Speciation and Demographic History of Orang-utans (Pongo pygmaeus and Pongo abelii)

Xin Ma, Joanna L. Kelley, Kirsten Eilertson, Shaila Musharoff, Jeremiah D. Degenhardt, André L. Martins, Tomas Vinar, Carolin Kosiol, Adam Siepel, Ryan N Gutenkunst, Carlos D. Bustamante

Research output: Contribution to journalArticle

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Abstract

To gain insights into evolutionary forces that have shaped the history of Bornean and Sumatran populations of orang-utans, we compare patterns of variation across more than 11 million single nucleotide polymorphisms found by previous mitochondrial and autosomal genome sequencing of 10 wild-caught orang-utans. Our analysis of the mitochondrial data yields a far more ancient split time between the two populations (∼3.4 million years ago) than estimates based on autosomal data (0.4 million years ago), suggesting a complex speciation process with moderate levels of primarily male migration. We find that the distribution of selection coefficients consistent with the observed frequency spectrum of autosomal non-synonymous polymorphisms in orang-utans is similar to the distribution in humans. Our analysis indicates that 35% of genes have evolved under detectable negative selection. Overall, our findings suggest that purifying natural selection, genetic drift, and a complex demographic history are the dominant drivers of genome evolution for the two orang-utan populations.

Original languageEnglish (US)
Article numbere77175
JournalPLoS One
Volume8
Issue number10
DOIs
StatePublished - Oct 23 2013

Fingerprint

Pongo abelii
Metagenomics
demographic statistics
Genes
Demography
Polymorphism
genomics
Population
Genetic Drift
history
Mitochondrial Genome
genome
Genetic Selection
genetic drift
single nucleotide polymorphism
natural selection
Single Nucleotide Polymorphism
Nucleotides
History
genetic polymorphism

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Medicine(all)

Cite this

Ma, X., Kelley, J. L., Eilertson, K., Musharoff, S., Degenhardt, J. D., Martins, A. L., ... Bustamante, C. D. (2013). Population Genomic Analysis Reveals a Rich Speciation and Demographic History of Orang-utans (Pongo pygmaeus and Pongo abelii). PLoS One, 8(10), [e77175]. https://doi.org/10.1371/journal.pone.0077175

Population Genomic Analysis Reveals a Rich Speciation and Demographic History of Orang-utans (Pongo pygmaeus and Pongo abelii). / Ma, Xin; Kelley, Joanna L.; Eilertson, Kirsten; Musharoff, Shaila; Degenhardt, Jeremiah D.; Martins, André L.; Vinar, Tomas; Kosiol, Carolin; Siepel, Adam; Gutenkunst, Ryan N; Bustamante, Carlos D.

In: PLoS One, Vol. 8, No. 10, e77175, 23.10.2013.

Research output: Contribution to journalArticle

Ma, X, Kelley, JL, Eilertson, K, Musharoff, S, Degenhardt, JD, Martins, AL, Vinar, T, Kosiol, C, Siepel, A, Gutenkunst, RN & Bustamante, CD 2013, 'Population Genomic Analysis Reveals a Rich Speciation and Demographic History of Orang-utans (Pongo pygmaeus and Pongo abelii)', PLoS One, vol. 8, no. 10, e77175. https://doi.org/10.1371/journal.pone.0077175
Ma, Xin ; Kelley, Joanna L. ; Eilertson, Kirsten ; Musharoff, Shaila ; Degenhardt, Jeremiah D. ; Martins, André L. ; Vinar, Tomas ; Kosiol, Carolin ; Siepel, Adam ; Gutenkunst, Ryan N ; Bustamante, Carlos D. / Population Genomic Analysis Reveals a Rich Speciation and Demographic History of Orang-utans (Pongo pygmaeus and Pongo abelii). In: PLoS One. 2013 ; Vol. 8, No. 10.
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