Variation in Apical Hook Length Reflects the Intensity of Sperm Competition in Murine Rodents

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F13%3A10139473" target="_blank" >RIV/00216208:11310/13:10139473 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68081766:_____/13:00394025

Výsledek na webu

<a href="http://dx.doi.org/10.1371/journal.pone.0068427" target="_blank" >http://dx.doi.org/10.1371/journal.pone.0068427</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1371/journal.pone.0068427" target="_blank" >10.1371/journal.pone.0068427</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Variation in Apical Hook Length Reflects the Intensity of Sperm Competition in Murine Rodents

Popis výsledku v původním jazyce

Background: Post-copulatory sexual selection has been shown to shape morphology of male gametes. Both directional and stabilizing selection on sperm phenotype have been documented in vertebrates in response to sexual promiscuity. Methodology: Here we investigated the degree of variance in apical hook length and tail length in six taxa of murine rodents. Conclusions: Tail sperm length and apical hook length were positively associated with relative testis mass, our proxy for levels of sperm competition, thus indicating directional post-copulatory selection on sperm phenotypes. Moreover, our study shows that increased levels of sperm competition lead to the reduction of variance in the hook length, indicating stabilizing selection. Hence, the higher riskof sperm competition affects increasing hook length together with decreasing variance in the hook length. Species-specific post-copulatory sexual selection likely optimizes sperm morphology.

Název v anglickém jazyce

Variation in Apical Hook Length Reflects the Intensity of Sperm Competition in Murine Rodents

Popis výsledku anglicky

Background: Post-copulatory sexual selection has been shown to shape morphology of male gametes. Both directional and stabilizing selection on sperm phenotype have been documented in vertebrates in response to sexual promiscuity. Methodology: Here we investigated the degree of variance in apical hook length and tail length in six taxa of murine rodents. Conclusions: Tail sperm length and apical hook length were positively associated with relative testis mass, our proxy for levels of sperm competition, thus indicating directional post-copulatory selection on sperm phenotypes. Moreover, our study shows that increased levels of sperm competition lead to the reduction of variance in the hook length, indicating stabilizing selection. Hence, the higher riskof sperm competition affects increasing hook length together with decreasing variance in the hook length. Species-specific post-copulatory sexual selection likely optimizes sperm morphology.

Druh

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

CEP obor

EG - Zoologie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA601110908" target="_blank" >IAA601110908: Genová exprese a počet genových kopií u etologicky významných savčích genů</a><br>

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

PLoS ONE

ISSN

1932-6203

e-ISSN

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Svazek periodika

8

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

000321733000004

EID výsledku v databázi Scopus

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