J 2017

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

FORSTMEIER, Wolfgang, Malika IHLE, Pavlína OPATOVÁ, Katrin MARTIN, Knief ULRICH et. al.

Základní údaje

Originální název

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

Autoři

FORSTMEIER, Wolfgang (276 Německo), Malika IHLE (250 Francie), Pavlína OPATOVÁ (203 Česká republika, domácí), Katrin MARTIN (276 Německo), Knief ULRICH (276 Německo), Albrechtová JANA (203 Česká republika), Albrecht TOMÁŠ (203 Česká republika, garant) a Kempenaers BART (528 Nizozemské království)

Vydání

Journal of Evolutionary Biology, Hoboken, WILEY, 2017, 1010-061X

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10600 1.6 Biological sciences

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Impakt faktor

Impact factor: 2.538

Kód RIV

RIV/00216224:14310/17:00096285

Organizační jednotka

Přírodovědecká fakulta

UT WoS

000400783800009

Klíčová slova anglicky

phenotype-linked fertility hypothesis; pre-copulatory traits; sperm abnormalities; sperm quality; display behavior; sexual selection; mate choice

Štítky

Příznaky

Mezinárodní význam, Recenzováno
Změněno: 12. 4. 2018 12:05, Ing. Nicole Zrilić

Anotace

V originále

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 contained 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 recently wild-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.