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
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.