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Title: Heterozygosity decrease in wild boar mating system. A case of outbreeding avoidance?
Authors: Pérez-González, J
Costa, V
Santos, P
Carranza, J
Fernández-Llario, P
Monteiro, NM
Anton, I
Beja-Pereira, A
Keywords: Sus scrofa
genetic relatedness
mate choice
microsatellite markers
outbreeding avoidance
wild boar
Issue Date: 2016
Publisher: Zoological Society of London (ZSL)
Citation: Pérez-González J, Costa V, Santos P, Carranza J , Zsolnai A , Fernández-Llario P, Monteiro NM, Anton I, Beja-Pereira A (2016) Heterozygosity decrease in wild boar mating system. A case of outbreeding avoidance? Journal of Zoology, DOI:10.1111/jzo.12426
Abstract: In sexually reproducing organisms, the specific combinations of parental alleles can have important consequences on offspring viability and fitness. Accordingly, genetic relationship between mates can be used as a criterion for mate choice. Here, we used microsatellite genetic markers to estimate the genetic relationship between mating pairs in the wild boar, Sus scrofa. Males, females and foetuses proceeding from Portugal, Spain and Hungary were genotyped using 14 microsatellite markers. The genetic relationship between mates was estimated using different measures of foetus heterozygosity. We found that the observed heterozygosity of foetuses was lower than that expected under random mating. This result occurred mainly when Sd2 (relatedness of parental genomes) was used as the heterozygosity measure. After simulations, we concluded that the observed low heterozygosity was possibly due to outbreeding avoidance. Outbreeding avoidance based on genetically different genomes might play an important role in species evolution and its genetic conservation.
Type: article
Appears in Collections:PAO - Publicações - Artigos em Revistas Internacionais Com Arbitragem Científica

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