GWAS and Selective Sweep Analysis Reveal the Genetic Basis of Papilla Number in the Sea Cucumber (<i>Apostichopus japonicus</i>).

ABSTRACT: Sea cucumber (Apostichopus japonicus) is a commercially important mariculture species in northern China. Papilla number has been recognized as a key economic trait in sea cucumbers. Notably, significant variation in papilla count exists among different populations. The genetic mechanisms controlling papilla development are not fully understood. In this study, 72 individuals from six geographically distinct sea cucumber populations (Group N1) and 35 individuals from their offspring (Group N2) were analyzed using reduced-representation genome sequencing (RRGS) and whole-genome resequencing (WGS), respectively. Genome-wide association studies (GWAS) and selective sweep analysis were conducted to identify the biological pathways and genetic basis underlying variation in papilla number.

SUBMITTER: Wang Y 

PROVIDER: S-EPMC12784826 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature