The evolution of female genitalia

Journal of Evolutionary Biology, Journal Year: 2019, Volume and Issue: 32(9), P. 882 - 899

Published: July 3, 2019

Female genitalia have been largely neglected in studies of genital evolution, perhaps due to the long-standing belief that they are relatively invariable and therefore taxonomically evolutionarily uninformative comparison with male genitalia. Contemporary evolution begun dispute this view, demonstrate female can be highly diverse covary males. Here, we examine evidence for three mechanisms females: species isolating 'lock-and-key' cryptic choice sexual conflict. Lock-and-key has thought unimportant; however, present cases show how isolation may well play a role Much support via conflict comes from both invertebrate vertebrate species; effects difficult distinguish models focus on putative benefits females. We offer potential solutions alleviate issue. Finally, directions future order expand refine our knowledge surrounding evolution.

Language: Английский

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Selection on standing genetic variation mediates convergent evolution in extremophile fish

Molecular Ecology, Journal Year: 2023, Volume and Issue: 32(18), P. 5042 - 5054

Published: Aug. 7, 2023

Abstract Hydrogen sulfide is a toxic gas that disrupts numerous biological processes, including energy production in the mitochondria, yet fish Poecilia mexicana species complex have independently evolved tolerance several times. Despite clear evidence for convergence at phenotypic level these fishes, it unclear if repeated evolution of hydrogen result similar genomic changes. To address this gap, we used targeted capture approach to sequence genes associated with processes and toxicity from five sulfidic nonsulfidic populations complex. By comparing variation candidate reference set, identified population structure differentiation, suggesting patterns most are due demographic history not selection. But presence tree discordance subset suggests loci evolving divergently between ecotypes. We two differentiation outlier detoxification mitochondria signatures selection all populations. Further investigation into regions long, shared haplotypes among Together, results reveal on standing genetic putatively adaptive may be driving

Language: Английский

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Evolution of genes involved in the unusual genitals of the bear macaque, Macaca arctoides

Ecology and Evolution, Journal Year: 2022, Volume and Issue: 12(5)

Published: May 1, 2022

Genital divergence is thought to contribute reproductive barriers by establishing a "lock-and-key" mechanism for compatibility. One such example, Macaca arctoides, the bear macaque, has compensatory changes in both male and female genital morphology as compared close relatives. M. arctoides also complex evolutionary history, having extensive introgression between fascicularis sinica macaque species groups. Here, phylogenetic relationships were analyzed via whole-genome sequences from five species, including two each putative parental This analysis revealed ~3x more genomic regions supported placement group group. Additionally, of genome it mosaic recent polymorphisms shared with To examine evolution their unique further, prevalence candidate genes involved was against genome-wide outliers various population genetic metrics diversity, divergence, introgression, selection, while accounting background variation recombination rate. identified 67 outlier genes, several that influence baculum mice, which interest since longest primate baculum. The mean four seven statistically different rest genome, suggesting have increased decreased diversity beyond expectations. These results highlight specific may played role shaping macaque.

Language: Английский

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Evolution of genes involved in the unusual genitals of the bear macaque,Macaca arctoides

bioRxiv (Cold Spring Harbor Laboratory), Journal Year: 2020, Volume and Issue: unknown

Published: May 20, 2020

Abstract Genital divergence is thought to contribute reproductive barriers by establishing a “lock- and-key” mechanism for compatibility. One such example, Macaca arctoides , the bear macaque, has compensatory changes in both male and female genital morphology as compared close relatives. also complex evolutionary history, having extensive introgression between fascicularis sinica macaque species groups. Here, phylogenetic relationships were analyzed via whole genome sequences from five species, including M. two each putative parental This analysis revealed ∼3x more genomic regions supported placement group group. Additionally, of it mosaic recent polymorphisms shared with To examine evolution their unique further, prevalence candidate genes involved against genome-wide outliers various population genetic metrics, while accounting background variation recombination rate. identified 66 outlier genes, several that influence baculum mice, which interest since longest primate baculum. The mean metrics was statistically different rest genome, suggesting have increased decreased diversity beyond expectations. These results highlight how may contributed isolation shaped macaque.

Language: Английский

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