Chromosome-Level Genome Assembly and Whole-Genome Resequencing Revealed Contrasting Population Genetic Differentiation of Black Bream (<i>Megalobrama skolkovii</i>) (Teleostei: Cyprinidae) Allopatric and Sympatric to Its Kin Species.

ABSTRACT: The black bream (Megalobrama skolkovii) is an economically important species widely distributed in China, with its geographic populations potentially having undergone differentiations and local adaptations. In this study, we presented a chromosome-level genome assembly of this species and investigated genetic differentiations of its populations that are allopatric (the northern one) and sympatric (the Poyang Lake) to its kin species, the blunt-snout bream (M. amblycephala), using whole genome resequencing analysis. The results showed that the genome size of black bream was 1.13 Gb, very similar to its kin species but larger than its close relatives, the four Chinese major carps. By resequencing individuals from the northern and Poyang Lake populations, we found that the north

SUBMITTER: Ding R 

PROVIDER: S-EPMC11751286 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature