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2017 ; 12
(3
): e0172713
Nephropedia Template TP
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English Wikipedia
Low level of extra-pair paternity between nearest neighbors results from female
preference for high-quality males in the yellow-rumped flycatcher (Ficedula
zanthopygia)
#MMPMID28257431
E M
; Gong Y
; Yu J
; Zhang S
; Fan Q
; Jiang Y
; Wang H
PLoS One
2017[]; 12
(3
): e0172713
PMID28257431
show ga
Extra-pair copulation is considered to be a means by which females can modify
their initial mate choice, and females might obtain indirect benefits to
offspring fitness by engaging in this behavior. Here, we examined the patterns of
extra-pair paternity and female preferences in the yellow-rumped flycatcher
(Ficedula zanthopygia). We found that female yellow-rumped flycatchers are more
likely to choose larger and relatively highly heterozygous males than their
social mates as extra-pair mates, that the genetic similarity of pairs that
produced mixed-paternity offspring did not differ from the similarity of pairs
producing only within-pair offspring, and that extra-pair offspring were more
heterozygous than their half-siblings. These findings support the good genes
hypothesis but do not exclude the compatibility hypothesis. Most female
yellow-rumped flycatchers attained extra-pair paternity with distant males rather
than their nearest accessible neighboring males, and no differences in genetic
and phenotypic characteristics were detected between cuckolded males and their
nearest neighbors. There was no evidence that extra-pair mating by female
flycatchers reduced inbreeding. Moreover, breeding density, breeding synchrony
and their interaction did not affect the occurrence of extra-pair paternity in
this species. Our results suggest that the variation in extra-pair paternity
distribution between nearest neighbors in some passerine species might result
from female preference for highly heterozygous males.