Genome-wide analysis of the <i>FAD</i> gene family in <i>Solanum tuberosum</i> L. reveals its involvement in cold stress tolerance.

ABSTRACT: Fatty acid desaturases (FADs) introduce double bonds into fatty acid chains, thereby maintaining membrane fluidity and modulating plant responses to stress. Yet the genome-wide features and functional implications of the FAD family in potato (Solanum tuberosum L.) remain insufficiently defined. Here, we identified 47 StFAD genes and analyzed their chromosomal distribution, phylogeny, conserved motifs, and promoter cis-elements. StFAD members were unevenly distributed across 12 chromosomes, with clusters on chromosomes 6 and 12, consistent with tandem and segmental duplications. Promoter analysis revealed abundant stress-, hormone-, and light-responsive elements, including cold-related motifs (LTR, ARE). Integrating transcriptome data with qRT-PCR, we found that StFA

SUBMITTER: Chu X 

PROVIDER: S-EPMC12728355 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature