The time scale of recombination rate evolution in great apes

Great Ape Genome Project

Research output: Contribution to journalArticle

26 Citations (Scopus)

Abstract

We present three linkage-disequilibrium (LD)-based recombination maps generated using whole-genome sequence data from 10 Nigerian chimpanzees, 13 bonobos, and 15 western gorillas, collected as part of the Great Ape Genome Project (Prado-Martinez J, et al. 2013. Great ape genetic diversity and population history. Nature 499:471-475). We also identified species-specific recombination hotspots in each group using a modified LDhot framework, which greatly improves statistical power to detect hotspots at varying strengths. We show that fewer hotspots are shared among chimpanzee subspecies than within human populations, further narrowing the time scale of complete hotspot turnover. Further, using species-specific PRDM9 sequences to predict potential binding sites (PBS), we show higher predicted PRDM9 binding in recombination hotspots as compared to matched cold spot regions in multiple great ape species, including at least one chimpanzee subspecies. We found that correlations between broad-scale recombination rates decline more rapidly than nucleotide divergence between species. We also compared the skew of recombination rates at centromeres and telomeres between species and show a skew from chromosome means extending as far as 10-15Mb from chromosome ends. Further, we examined broad-scale recombination rate changes near a translocation in gorillas and found minimal differences as compared to other great ape species perhaps because the coordinates relative to the chromosome ends were unaffected. Finally, on the basis of multiple linear regression analysis, we found that various correlates of recombination rate persist throughout the African great apes including repeats, diversity, and divergence. Our study is the first to analyze within- And between-species genome-wide recombination rate variation in several close relatives.

Original languageEnglish (US)
Pages (from-to)928-945
Number of pages18
JournalMolecular biology and evolution
Volume33
Issue number4
DOIs
StatePublished - Apr 1 2016

Fingerprint

Hominidae
Pongidae
Genetic Recombination
recombination
timescale
Pan troglodytes
Gorilla
chromosomes
genome
Gorilla gorilla
chromosome
Genome
Pan paniscus
subspecies
telomeres
centromeres
linkage disequilibrium
Chromosomes
human population
divergence

Keywords

  • Hotspots
  • Prdm9
  • Primates
  • Recombination

ASJC Scopus subject areas

  • Ecology, Evolution, Behavior and Systematics
  • Molecular Biology
  • Genetics

Cite this

The time scale of recombination rate evolution in great apes. / Great Ape Genome Project.

In: Molecular biology and evolution, Vol. 33, No. 4, 01.04.2016, p. 928-945.

Research output: Contribution to journalArticle

Great Ape Genome Project. / The time scale of recombination rate evolution in great apes. In: Molecular biology and evolution. 2016 ; Vol. 33, No. 4. pp. 928-945.
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