Origin and genome evolution of polyploid green toads in Central Asia: evidence from microsatellite markers.

ABSTRACT: Polyploidization, which is expected to trigger major genomic reorganizations, occurs much less commonly in animals than in plants, possibly because of constraints imposed by sex-determination systems. We investigated the origins and consequences of allopolyploidization in Palearctic green toads (Bufo viridis subgroup) from Central Asia, with three ploidy levels and different modes of genome transmission (sexual versus clonal), to (i) establish a topology for the reticulate phylogeny in a species-rich radiation involving several closely related lineages and (ii) explore processes of genomic reorganization that may follow polyploidization. Sibship analyses based on 30 cross-amplifying microsatellite markers substantiated the maternal origins and revealed the paternal origins and relationship

SUBMITTER: Betto-Colliard C 

PROVIDER: S-EPMC4815583 | biostudies-literature | 2015 Mar

REPOSITORIES: biostudies-literature