A sex-chromosome inversion causes strong overdominance for sperm traits that affect siring success

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F17%3A00476722" target="_blank" >RIV/68081766:_____/17:00476722 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10366290

Výsledek na webu

<a href="http://dx.doi.org/10.1038/s41559-017-0236-1" target="_blank" >http://dx.doi.org/10.1038/s41559-017-0236-1</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s41559-017-0236-1" target="_blank" >10.1038/s41559-017-0236-1</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A sex-chromosome inversion causes strong overdominance for sperm traits that affect siring success

Popis výsledku v původním jazyce

Male reproductive success depends on the competitive ability of sperm to fertilize the ova, which should lead to strong selection on sperm characteristics. This raises the question of how heritable variation in sperm traits is maintained. Here we show that in zebra finches (Taeniopygia guttata) nearly half of the variance in sperm morphology is explained by an inversion on the Z chromosome with a 40% allele frequency in the wild. The sperm of males that are heterozygous for the inversion had the longest midpieces and the highest velocity. Furthermore, such males achieved the highest fertility and the highest siring success, both within-pair and extra-pair. Males homozygous for the derived allele show detrimental sperm characteristics and the lowest siring success. Our results suggest heterozygote advantage as the mechanism that maintains the inversion polymorphism and hence variance in sperm design and in fitness.

Název v anglickém jazyce

A sex-chromosome inversion causes strong overdominance for sperm traits that affect siring success

Popis výsledku anglicky

Male reproductive success depends on the competitive ability of sperm to fertilize the ova, which should lead to strong selection on sperm characteristics. This raises the question of how heritable variation in sperm traits is maintained. Here we show that in zebra finches (Taeniopygia guttata) nearly half of the variance in sperm morphology is explained by an inversion on the Z chromosome with a 40% allele frequency in the wild. The sperm of males that are heterozygous for the inversion had the longest midpieces and the highest velocity. Furthermore, such males achieved the highest fertility and the highest siring success, both within-pair and extra-pair. Males homozygous for the derived allele show detrimental sperm characteristics and the lowest siring success. Our results suggest heterozygote advantage as the mechanism that maintains the inversion polymorphism and hence variance in sperm design and in fitness.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10602 - Biology (theoretical, mathematical, thermal, cryobiology, biological rhythm), Evolutionary biology

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

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Nature Ecology & Evolution

ISSN

2397-334X

e-ISSN

—

Svazek periodika

1

Číslo periodika v rámci svazku

8

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

1177-1184

Kód UT WoS článku

000417188600025

EID výsledku v databázi Scopus

2-s2.0-85031894494