Genomic differentiation between wild and domesticated populations of large yellow croaker (Larimichthys crocea): environmental impacts.

ABSTRACT:

Background

Larimichthys crocea, commonly known as large yellow croaker, is a marine species of significant commercial value in East Asia. However, overfishing and long-term artificial breeding have raised concerns about the genetic diversity and adaptive capacity of farmed populations. Understanding the genetic differentiation and environmental adaptation between wild and cultured populations is crucial for conservation efforts and sustainable aquaculture development.

Results

Whole-genome resequencing of 195 individuals revealed: (1) Significant genetic divergence between wild and farmed populations (764,656 SNPs), with cultured stocks showing 18-22% lower heterozygosity; (2) 153 selective sweep regions containing 739 candidate genes, including hsp40 (thermal adaptation) and

SUBMITTER: Jiang L 

PROVIDER: S-EPMC12661776 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature