Splicing and expression dynamics of SR genes in hot pepper (<i>Capsicum annuum</i>): regulatory diversity and conservation under stress.

ABSTRACT: In this study, we identified and characterized 23 genes encoding serine/arginine-rich (SR) protein in hot pepper (Capsicum annuum), named CaSR here. These CaSR proteins are grouped into seven subfamilies. Phylogenetic analysis revealed a high degree of similarity between CaSRs and their homologous proteins in other plants. Promoter regions of SR proteins are enriched with elements relating to light response, stress, hormone signaling, and plant growth. Notably, transcription levels of several proteins, including CaSR33, CaSR34, and CaSR34a, were upregulated by salt, drought, and cold stresses, suggesting potential roles of these proteins in stress tolerance. We also observed an increase of CaSR transcript population resulting from alternative splicing (AS) regulation, mainly intron

SUBMITTER: Li L 

PROVIDER: S-EPMC11798799 | biostudies-literature | 2024

REPOSITORIES: biostudies-literature