Fertilization mode differentially impacts the evolution of vertebrate sperm components.

Autor: Kahrl AF; Department of Zoology, Stockholm University, Svante Arrhenius väg 18B, SE-10691, Stockholm, Sweden. akahrl@hamilton.edu.; Department of Biology, Hamilton College, 198 College Hill Road, Clinton, NY, USA. akahrl@hamilton.edu., Snook RR; Department of Zoology, Stockholm University, Svante Arrhenius väg 18B, SE-10691, Stockholm, Sweden., Fitzpatrick JL; Department of Zoology, Stockholm University, Svante Arrhenius väg 18B, SE-10691, Stockholm, Sweden.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2022 Nov 10; Vol. 13 (1), pp. 6809. Date of Electronic Publication: 2022 Nov 10.
DOI: 10.1038/s41467-022-34609-7
Abstrakt: Environmental change frequently drives morphological diversification, including at the cellular level. Transitions in the environment where fertilization occurs (i.e., fertilization mode) are hypothesized to be a driver of the extreme diversity in sperm morphology observed in animals. Yet how fertilization mode impacts the evolution of sperm components-head, midpiece, and flagellum-each with different functional roles that must act as an integrated unit remains unclear. Here, we test this hypothesis by examining the evolution of sperm component lengths across 1103 species of vertebrates varying in fertilization mode (external vs. internal fertilization). Sperm component length is explained in part by fertilization mode across vertebrates, but how fertilization mode influences sperm evolution varies among sperm components and vertebrate clades. We also identify evolutionary responses not influenced by fertilization mode: midpieces evolve rapidly in both external and internal fertilizers. Fertilization mode thus influences vertebrate sperm evolution through complex component- and clade-specific evolutionary responses.
(© 2022. The Author(s).)
Databáze: MEDLINE
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