Satellite DNA Mapping in Pseudis fusca (Hylidae, Pseudinae) Provides New Insights into Sex Chromosome Evolution in Paradoxical Frogs.

ABSTRACT: In the frog genus Pseudis, previous works found a sex-linked heteromorphism of the PcP190 satellite DNA in the nucleolus organizer region (NOR)-bearing chromosome pairs of Pseudis bolbodactyla and Pseudis tocantins, which possess a ZZ/ZW sex determination system. A pericentromeric inversion was inferred to have occurred during W chromosome evolution, moving a chromosomal cluster enriched by the PcP190 from the short arm (as observed in P. bolbodactyla) to the NOR-bearing long arm (as observed in P. tocantins). However, whether such an inversion happened in P. tocantins or in the common ancestor of Pseudis fusca and P. tocantins remained unclear. To assess this question, we mapped PcP190 in the karyotype of P. fusca from three d

SUBMITTER: Gatto KP 

PROVIDER: S-EPMC6410007 | biostudies-literature | 2019 Feb

REPOSITORIES: biostudies-literature