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Molecules and mating: positive selection and reproductive behaviour in primates.
Leslie A Knapp1, Simeon H S Innocent
1Primate Immunogenetics and Molecular Ecology Research Group, Department of Biological Anthropology, University of Cambridge, Cambridge, UK. lak26@cam.ac.uk
Advances in Experimental Medicine and Biology
|March 9, 2012
Summary
Positive selection drives the evolution of mating behaviors and reproductive success in primates. Genes influencing mate choice, social bonding, and sperm competition show evidence of adaptation, contributing to population diversity.
Area of Science:
- Evolutionary biology
- Genetics
- Primatology
Background:
- Sexual reproduction is often considered more costly than asexual reproduction.
- However, sexual reproduction accelerates adaptation via recombination and positive selection.
- Comparative genomic studies reveal positive selection's significant role in human and primate evolution.
Purpose of the Study:
- To investigate genes associated with mating behaviors and reproductive processes in primates.
- To focus on genes likely enhancing reproductive success and showing positive selection.
- To explore how these genes influence mate choice, social behaviors, and post-copulatory strategies.
Main Methods:
- Comparative analysis of human and nonhuman primate genomes.
- Identification of genes under positive selection.
- Examination of genes related to phenotypic traits influencing mating and reproduction.
Main Results:
- Dozens of genes influenced by positive selection have been identified.
- Genes affecting mate choice, reproductive success, and social behaviors (bonding, aggression) are highlighted.
- Evidence suggests these genes contribute to population differentiation and diversity.
Conclusions:
- Genes under positive selection significantly influence primate mating behaviors and reproductive strategies.
- These genetic adaptations play a role in mate choice, social interactions, and post-copulatory competition.
- The study underscores the genetic basis of behavioral diversity and adaptation in primates.
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