Unveiling the Role of GhP5CS1 in Cotton Salt Stress Tolerance: A Comprehensive Genomic and Functional Analysis of P5CS Genes.

ABSTRACT: Proline, a critical osmoregulatory compound, is integral to various plant stress responses. The P5CS gene, which encodes the rate-limiting enzyme in proline biosynthesis, known as ∆1-pyrroline-5-carboxylate synthetase, is fundamental to these stress response pathways. While the functions of P5CS genes in plants have been extensively documented, their specific roles in cotton remain inadequately characterized. In this study, we identified 40 P5CS genes across four cotton species with diverse sequence lengths and molecular weights. Phylogenetic analysis of 100 P5CS genes from nine species revealed three subgroups, with Gossypium hirsutum closely related to Gossypium barbadense. Collinearity analysis highlighted significant differences in collinear ge

SUBMITTER: Fang H 

PROVIDER: S-EPMC11768395 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature