Postcopulatory sexual selection is associated with accelerated evolution of sperm morphology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F15%3A10312995" target="_blank" >RIV/00216208:11310/15:10312995 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081766:_____/15:00441942

Výsledek na webu

<a href="http://dx.doi.org/10.1111/evo.12620" target="_blank" >http://dx.doi.org/10.1111/evo.12620</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/evo.12620" target="_blank" >10.1111/evo.12620</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Postcopulatory sexual selection is associated with accelerated evolution of sperm morphology

Popis výsledku v původním jazyce

Rapid diversification of sexual traits is frequently attributed to sexual selection, though explicit tests of this hypothesis remain limited. Spermatozoa exhibit remarkable variability in size and shape, and studies report a correlation between sperm morphology (sperm length and shape) and sperm competition risk or female reproductive tract morphology. However, whether postcopulatory processes (e.g., sperm competition and cryptic female choice) influence the speed of evolutionary diversification in sperm form is unknown. Using passerine birds, we quantified evolutionary rates of sperm length divergence among lineages (i.e., species pairs) and determined whether these rates varied with the level of sperm competition (estimated as relative testes mass).We found that relative testes mass was significantly and positively associated with more rapid phenotypic divergence in sperm midpiece and flagellum lengths, as well as total sperm length. In contrast, there was no association between rel

Název v anglickém jazyce

Postcopulatory sexual selection is associated with accelerated evolution of sperm morphology

Popis výsledku anglicky

Rapid diversification of sexual traits is frequently attributed to sexual selection, though explicit tests of this hypothesis remain limited. Spermatozoa exhibit remarkable variability in size and shape, and studies report a correlation between sperm morphology (sperm length and shape) and sperm competition risk or female reproductive tract morphology. However, whether postcopulatory processes (e.g., sperm competition and cryptic female choice) influence the speed of evolutionary diversification in sperm form is unknown. Using passerine birds, we quantified evolutionary rates of sperm length divergence among lineages (i.e., species pairs) and determined whether these rates varied with the level of sperm competition (estimated as relative testes mass).We found that relative testes mass was significantly and positively associated with more rapid phenotypic divergence in sperm midpiece and flagellum lengths, as well as total sperm length. In contrast, there was no association between rel

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

EG - Zoologie

OECD FORD obor

—

Projekt

<a href="/cs/project/GAP506%2F12%2F2472" target="_blank" >GAP506/12/2472: Post-kopulační pohlavní výběr a biologie spermie: vnitropopulační a mezidruhové procesy u pěvců</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2015

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Evolution; international journal of organic evolution

ISSN

0014-3820

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

9

Strana od-do

1044-1052

Kód UT WoS článku

000353236000017

EID výsledku v databázi Scopus

2-s2.0-84927911150