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001-es BibID:	BIBFORM049418
Első szerző:	Cotton, A. J.
Cím:	Male eyespan size is associated with meiotic drive in wild stalk-eyed flies (Teleopsis dalmanni) / A. J. Cotton, M Földvári, S. Cotton, A. Pomiankowski
Dátum:	2014
ISSN:	0018-067X
Megjegyzések:	This study provides the first direct evidence from wild populations of stalk-eyed flies to support the hypothesis that male eyespan is a signal of meiotic drive. Several stalk-eyed fly species are known to exhibit X-linked meiotic drive. A recent quantitative trait locus analysis in Teleopsis dalmanni found a potential link between variation in male eyespan, a sexually selected ornamental trait, and the presence of meiotic drive. This was based on laboratory populations subject to artificial selection for male eyespan. In this study, we examined the association between microsatellite markers and levels of sex ratio bias (meiotic drive) in 12 wild T. dalmanni populetions. We collected two data sets: (a) brood sex ratios of wild-cought males mated to standard laboratory females and (b) variation in a range of phenotypic traits associated with reproductive success of wild-caught males and females. In each case, we typed individuals for eight-X-linked microsatellite markers, including several that previously were shown to be associated with male eyespan and meiotic drive. We found that one microsatellite marker was very strongly associated with meiotic drive, whereas a second showed a weaker association. We also found that, using both independent data sets, meiotic drive was strongly associated with male eyespan, with smaller eyespan males being associated with more female-biased broods. These results suggest that mate preference for exaggerated male eyespan allows females to avoid mating with males carrying the meiotic drive gene and is thus a potential mechanism for the maintenance and evolution of female mate preference.
Tárgyszavak:	Természettudományok Biológiai tudományok idegen nyelvű folyóiratközlemény külföldi lapban meiotic drive sex ratio sexual selection stalk-eyed fly
Megjelenés:	Heredity. - 112 (2014), p. 363-369. -
További szerzők:	Földvári Mihály (1974-) (ökológus) Cotton, Samuel Pomiankowski, Andrew
Pályázati támogatás:	MTA-DE Lendület MTA Viselkedésökológiai Kutatócsoport
Internet cím:	Szerző által megadott URL DOI Intézményi repozitóriumban (DEA) tárolt változat
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