ArticleProceedings. Biological sciences2019
Sexual selection, body mass and molecular evolution interact to predict diversification in birds.
Article in Proceedings. Biological sciences, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.
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11 citing papers in PubMed, 27 citations in OpenAlex.
- Multiple drivers of genomic novelty across ruminants.iScience · 2026Article
- Controlling for life-history traits in vertebrates reveals that effective population size does not affect mutation rate or genome size.Proceedings of the National Academy of Sciences of the United States of America · 2026Article
- Article
- Combining Molecular, Macroevolutionary, and Macroecological Perspectives on the Generation of Diversity.Cold Spring Harbor perspectives in biology · 2024Review
- Sexual size dimorphism in mammals is associated with changes in the size of gene families related to brain development.Nature communications · 2024Article
- ClockstaRX: Testing Molecular Clock Hypotheses With Genomic Data.Genome biology and evolution · 2024Article
- Sexual selection for males with beneficial mutations.Scientific reports · 2022Article
- Investigating the reliability of molecular estimates of evolutionary time when substitution rates and speciation rates vary.BMC ecology and evolution · 2022Article
- Comparative Genomics and Evolution of Avian Specialized Traits.Current genomics · 2021Review
- Deep time diversity and the early radiations of birds.Proceedings of the National Academy of Sciences of the United States of America · 2021Article
- Sexual selection, body mass and molecular evolution interact to predict diversification in birds.Proceedings. Biological sciences · 2019Article
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Authors and funding
4 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Sexual selection is a powerful agent of evolution, driving microevolutionary changes in the genome and macroevolutionary rates of lineage diversification. The mechanisms by which sexual selection might influence macroevolution remain poorly understood. For example, sexual selection might drive positive selection for key adaptations that facilitate diversification. Furthermore, sexual selection might be a general driver of molecular evolutionary rate. We lay out some of the potential mechanisms that create a link between sexual selection and diversification, based on causal effects on other life-history traits such as body mass and the rate of molecular evolution. Birds are ideally suited for testing the importance of these relationships because of their diverse reproductive systems and the multiple evolutionary radiations that have produced their astounding modern diversity. We show that sexual selection (measured as the degree of polygyny) interacts with the rate of molecular evolution and with body mass to predict species richness at the genus level. A high degree of polygyny and rapid molecular evolution are positively associated with the net rate of diversification, with the two factors being especially important for explaining diversification in large-bodied taxa. Our findings further suggest that mutation rates underpin some of the macroevolutionary effects of sexual selection. We synthesize the existing theory on sexual selection as a force for diversity and propose avenues for exploring this association using genome data.
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