Extensive genome-wide duplications in the eastern oyster (Crassostrea virginica).

ABSTRACT: Genomic structural variation is an important source of genetic and phenotypic diversity, playing a critical role in evolution. The recent availability of a high-quality reference genome for the eastern oyster, Crassostrea virginica, and whole-genome sequence data of samples from across the species range in the USA, provides an opportunity to explore structural variation across the genome of this species. Our analysis shows significantly greater individual-level duplications of regions across the genome than that of most model vertebrate species. Duplications are widespread across all ten chromosomes with variation in frequency per chromosome. The eastern oyster shows a large interindividual variation in duplications as well as particular chromosomal regions with a higher density of

SUBMITTER: Modak TH 

PROVIDER: S-EPMC8059967 | biostudies-literature | 2021 May

REPOSITORIES: biostudies-literature