Genome-wide identification of GhEDS1 gene family members in cotton and expression analysis in response to biotic and abiotic stresses.

ABSTRACT:

Background

Enhanced Disease Susceptibility 1 (EDS1) genes are central regulators of plant immunity and abiotic stress responses. Although well studied in model species, their genome-wide characterisation in cotton (Gossypium spp.) remains lacking.

Results

We identified 268 putative EDS1 genes across four Gossypium species (G. hirsutum, G. barbadense, G. arboreum, and G. raimondii) using HMMER-based domain searches. Phylogenetic analysis grouped the genes into five subfamilies, reflecting both conserved ancestry and subgenome-specific diversification. Chromosomal mapping, collinearity, and Ka/Ks analyses revealed that segmental and whole-genome duplications were the primary drivers of expansion, with most duplicates under purifying selection. Promoter analysis using PlantCARE

SUBMITTER: Hamid R 

PROVIDER: S-EPMC12481744 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature