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Genomic Evidence for the Complex Evolutionary History of Macaques (Genus Macaca)
Zhenxin Fan1, Rusong Zhang1, Anbo Zhou2
1Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, 610065, Sichuan, People's Republic of China.
Journal of Molecular Evolution
|April 18, 2024
Summary
Macaque species exhibit complex evolutionary histories, with extensive ancient gene flow and introgression detected among different groups. Genetic diversity varies significantly across macaque species and populations.
Area of Science:
- Primate genomics
- Evolutionary biology
- Population genetics
Background:
- The genus Macaca, comprising diverse nonhuman primates, is widely studied due to its broad distribution and varied characteristics.
- Understanding macaque evolutionary history is crucial for primate research.
Purpose of the Study:
- To investigate gene introgression and genetic differences among macaque species.
- To reconstruct the evolutionary history of the genus Macaca using whole genome data.
Main Methods:
- Whole-genome re-sequencing of five Macaca species.
- Analysis of 20 genome sequences from 10 macaque species.
- Network analysis of SNV-fragment trees and various analytical methods.
Main Results:
- Reticular phylogeny indicated by network analysis of SNV-fragment trees.
- Identification of extensive ancient introgression events among macaque species.
- Observed introgression signals between different species groups, with varying strengths.
Conclusions:
- Macaque evolutionary history is characterized by significant gene flow and introgression.
- Genetic backgrounds and diversity differ dramatically among macaque species and populations.
- Whole genome sequencing provides robust evidence for complex macaque evolutionary dynamics.
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