Chimpanzees breed with genetically dissimilar mates

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Chimpanzees breed with genetically dissimilar mates

Inbreeding adversely affects fitness, whereas heterozygosity often augments it. Therefore, mechanisms to avoid inbreeding and increase genetic distance between mates should be advantageous in species where adult relatives reside together. Here we investigate mate choice for genetic dissimilarity in chimpanzees, a species in which many females avoid inbreeding through dispersal, but where promis...

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Effects of stress on human mating preferences: stressed individuals prefer dissimilar mates.

Although humans usually prefer mates that resemble themselves, mating preferences can vary with context. Stress has been shown to alter mating preferences in animals, but the effects of stress on human mating preferences are unknown. Here, we investigated whether stress alters men's preference for self-resembling mates. Participants first underwent a cold-pressor test (stress induction) or a co...

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Reed bunting females increase fitness through extra-pair mating with genetically dissimilar males.

Females of many socially monogamous species accept or even actively seek copulations outside the social pair bond. As females cannot increase the number of offspring with promiscuous behaviour, the question arises why they engage in extra-pair mating. We used microsatellite data to determine paternity, heterozygosity and genetic relatedness in the reed bunting (Emberiza schoeniclus), a species ...

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ژورنال

عنوان ژورنال: Royal Society Open Science

سال: 2017

ISSN: 2054-5703

DOI: 10.1098/rsos.160422