Testing the phenotype-linked fertility hypothesis in the presence and absence of inbreeding

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081766%3A_____%2F17%3A00473882" target="_blank" >RIV/68081766:_____/17:00473882 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/00216208:11310/17:10367101 RIV/00216224:14310/17:00096285

Výsledek na webu

<a href="http://dx.doi.org/10.1111/jeb.13062" target="_blank" >http://dx.doi.org/10.1111/jeb.13062</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1111/jeb.13062" target="_blank" >10.1111/jeb.13062</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Testing the phenotype-linked fertility hypothesis in the presence and absence of inbreeding

Popis výsledku v původním jazyce

The phenotype-linked fertility hypothesis suggests that females can judge male fertility by inspecting male phenotypic traits. This is because male sexually selected traits might correlate with sperm quality if both are sensitive to factors that influence male condition. A recent meta-analysis found little support for this hypothesis, suggesting little or no shared condition dependence. However, we recently reported that in captive zebra finches (Taeniopygia guttata) inbreeding had detrimental effects both on phenotypic traits and on measures of sperm quality, implying that variation in inbreeding could induce positive covariance between indicator traits and sperm quality. Therefore, we here assess empirically the average strength of correlations between phenotypic traits (courtship rate, beak colour, tarsus length) and measures of sperm quality (proportion of functional sperm, sperm velocity, sperm length) in populations of only outbred individuals and in mixed populations consisting of inbreds (F = 0.25) and outbreds (F = 0). As expected,phenotype sperm-trait correlations were stronger when the population con-tained a mix of inbred and outbred individuals. We also found unexpected heterogeneity between our two study populations, with correlations being considerably stronger in a domesticated population than in a recentlywild-derived population. Correlations ranged from essentially zero among outbred-only wild-derived birds (mean Fisher’s Zr  SE = 0.03  0.10) to moderately strong among domesticated birds of mixed inbreeding status (Zr  SE = 0.38  0.08). Our results suggest that, under some conditions,the phenotype-linked fertility hypothesis might apply.

Název v anglickém jazyce

Testing the phenotype-linked fertility hypothesis in the presence and absence of inbreeding

Popis výsledku anglicky

The phenotype-linked fertility hypothesis suggests that females can judge male fertility by inspecting male phenotypic traits. This is because male sexually selected traits might correlate with sperm quality if both are sensitive to factors that influence male condition. A recent meta-analysis found little support for this hypothesis, suggesting little or no shared condition dependence. However, we recently reported that in captive zebra finches (Taeniopygia guttata) inbreeding had detrimental effects both on phenotypic traits and on measures of sperm quality, implying that variation in inbreeding could induce positive covariance between indicator traits and sperm quality. Therefore, we here assess empirically the average strength of correlations between phenotypic traits (courtship rate, beak colour, tarsus length) and measures of sperm quality (proportion of functional sperm, sperm velocity, sperm length) in populations of only outbred individuals and in mixed populations consisting of inbreds (F = 0.25) and outbreds (F = 0). As expected,phenotype sperm-trait correlations were stronger when the population con-tained a mix of inbred and outbred individuals. We also found unexpected heterogeneity between our two study populations, with correlations being considerably stronger in a domesticated population than in a recentlywild-derived population. Correlations ranged from essentially zero among outbred-only wild-derived birds (mean Fisher’s Zr  SE = 0.03  0.10) to moderately strong among domesticated birds of mixed inbreeding status (Zr  SE = 0.38  0.08). Our results suggest that, under some conditions,the phenotype-linked fertility hypothesis might apply.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10603 - Genetics and heredity (medical genetics to be 3)

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

Journal of Evolutionary Biology

ISSN

1010-061X

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

5

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

9

Strana od-do

968-976

Kód UT WoS článku

000400783800009

EID výsledku v databázi Scopus

2-s2.0-85017380534