Sex Influences the Genetic Structure of Greenland Halibut in the North Atlantic.

ABSTRACT: Greenland halibut (Reinhardtius hippoglossoides) is a commercially important species in the North Atlantic whose spatial population structure has not yet been fully determined across its entire range. We genotyped individuals from across the North Atlantic using a subset of informative single nucleotide polymorphic (SNP) markers to assess their usability as a SNP panel. We assessed whether these purportedly structured SNPs had any association with sex. We found several of these loci to be in sex-determining chromosomes and that their inclusion generated genetic structure mainly in males. The population structure without the sex-associated SNPs was weak and followed an isolation-by-distance pattern, likely with a large regional population on each side of the North Atlantic. We discus

SUBMITTER: Estevez-Barcia D 

PROVIDER: S-EPMC11810528 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature