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Convergent recombination suppression suggests role of sexual selection in guppy sex chromosome formation [Nature Communications]

Keywords : evolutionary genetics, genetic variation, sexual selection

par Frédéric Magné - publié le

Sex chromosomes evolve once recombination is halted between a homologous pair of chromosomes. The dominant model of sex chromosome evolution posits that recombination is suppressed between emerging X and Y chromosomes in order to resolve sexual conflict. Here we test this model using whole genome and transcriptome resequencing data in the guppy, a model for sexual selection with many Y-linked colour traits.(...)

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