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

Result code in 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>

Alternative codes found

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

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

—

Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

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

Project

<a href="/en/project/GAP506%2F12%2F2472" target="_blank" >GAP506/12/2472: Post-copulatory sexual selection and the biology of sperm: within population processes and interspecific patterns in passerine birds</a><br>

Continuities

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

Publication year

2017

Confidentiality

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

Name of the periodical

Journal of Evolutionary Biology

ISSN

1010-061X

e-ISSN

—

Volume of the periodical

30

Issue of the periodical within the volume

5

Country of publishing house

GB - UNITED KINGDOM

Number of pages

9

Pages from-to

968-976

UT code for WoS article

000400783800009

EID of the result in the Scopus database

2-s2.0-85017380534