Demonstrating sexual selection by cryptic female choice on male genitalia: What is enough?

Evolution, Journal Year: 2019, Volume and Issue: 73(12), P. 2415 - 2435

Published: Oct. 10, 2019

Rapid divergence in external genital structures occurs nearly all animal groups that practice internal insemination; explaining this pattern is a major challenge evolutionary biology. The hypothesis species‐specific differences male genitalia evolved under sexual selection as courtship devices to influence cryptic female choice (CFC) has been slow be accepted. Doubts may stem from its radical departure previous ideas, observational difficulties because crucial events occur hidden within the female's body, and alternative hypotheses involving biologically important phenomena such speciation, sperm competition, male‐female conflicts of interest. We assess current status CFC by reviewing data two which predictions have especially well‐tested, Glossina tsetse flies Roeseliana (formerly Metrioptera) roeselii bushcrickets. Eighteen confirmed 19 Roeseliana. found justifying rejection hypotheses, but none contradicted predictions. number extent tests confirming these species greater than for other generally accepted regarding functions nongenital structures. By criterion, it reasonable conclude some both likely involved CFC.

Language: Английский

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A standardized nomenclature and atlas of the female terminalia of Drosophila melanogaster

Fly, Journal Year: 2022, Volume and Issue: 16(1), P. 128 - 151

Published: May 14, 2022

The model organism Drosophila melanogaster has become a focal system for investigations of rapidly evolving genital morphology as well the development and functions insect reproductive structures. To follow up on previous paper outlining unifying terminology structures male terminalia in this species, we offer here detailed description female D. melanogaster. Informative diagrams micrographs are presented to provide comprehensive overview external internal females. We propose collection terms definitions standardize associated with correspondence table previously used. Unifying both males females species will help facilitate communication between various disciplines, aid synthesizing research across publications within discipline that historically focused principally features. Our efforts refine should expand utility important addressing questions related evolution animal genitalia, general.

Language: Английский

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On the function of the male’s front legs in Sepsis flies (Diptera: Sepsidae): evolutionary insight from behavioural detail

Animal Behaviour, Journal Year: 2025, Volume and Issue: unknown, P. 123047 - 123047

Published: Jan. 1, 2025

Language: Английский

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Phylogeny of euophryine jumping spiders from ultra‐conserved elements, with evidence on the intersexual coevolution of genitalia (Araneae: Salticidae: Euophryini)

Systematic Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 16, 2025

Abstract Knowledge of phylogeny is required to understand the evolution highly diverse groups such as euophryine jumping spiders, a lineage showing high species and morphological diversity. In this study, we applied phylogenomic approach using ultra‐conserved elements (UCE) obtained from 145 taxa infer spiders. The results provide well‐supported phylogenetic framework for Euophryini, especially deeper relationships, in which monophyly well most clades corresponding genus or group closely related genera, are strongly supported. Additionally, evolutionary patterns male embolus length female copulatory duct 117 were investigated through ancestral character state reconstruction phylogenetically independent contrast analyses UCE framework. suggest that lengths Euophryini positively correlated. common ancestor likely had relatively short duct, followed by repeated lengthening shortening both structures different lineages. Possible mechanisms may have caused intersexual coevolution pattern discussed. This study advances our understandings phylogeny, systematics genitalic euophryines, providing solid foundation future studies on diversification spider group.

Language: Английский

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Key questions for future research in Physiological Entomology

Physiological Entomology, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 22, 2025

Language: Английский

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