A dense linkage map for a large repetitive genome: discovery of the sex-determining region in hybridizing fire-bellied toads (<i>Bombina bombina</i> and <i>Bombina variegata</i>)

Abstract

AbstractGenomic analysis of hybrid zones offers unique insights into emerging reproductive isolation and the dynamics of introgression. Because hybrid genomes consist of blocks inherited from one or the other parental taxon, linkage information is essential. In most cases, the spectrum of local ancestry tracts can be efficiently uncovered from dense linkage maps. Here, we report the development of such a map for the hybridizing toads, Bombina bombinaBombina variegataB. bombina vs B. variegataBombinaXenopus tropicalis.BombinaX. tropicalis