Heterogeneous Genomic Divergence Landscape in Two Commercially Important European Scallop Species.

ABSTRACT: Two commercially important scallop species of the genus Pecten are found in Europe: the north Atlantic Pecten maximus and the Mediterranean Pecten jacobaeus whose distributions abut at the Almeria-Orán front. Whilst previous studies have quantified genetic divergence between these species, the pattern of differentiation along the Pecten genome is unknown. Here, we mapped RADseq data from 235 P. maximus and 27 P. jacobaeus to a chromosome-level reference genome, finding a heterogeneous landscape of genomic differentiation. Highly divergent genomic regions were identified across 14 chromosomes, while the remaining five showed little differentiation. Demographic and comparative genomics analyses suggest that this pattern resulted from an initial exten

SUBMITTER: Vendrami DLJ 

PROVIDER: S-EPMC9858869 | biostudies-literature | 2022 Dec

REPOSITORIES: biostudies-literature