Transcriptomic Analysis Reveals the Regulatory Mechanism of Cold Tolerance in <i>Saussurea involucrata</i>: The Gene Expression and Function Characterization of Dehydrins.

ABSTRACT: Saussurea involucrata, a rare and endangered medicinal plant of the Asteraceae family, is primarily distributed in high-altitude rocky slopes and meadows at elevations of 2400-4100 m. In nature, this herb endures various abiotic stresses, including intense cold and ultraviolet radiation. In our study, transcriptomic profiles revealed that most of the differentially expressed genes (DEGs) enriched in stress response pathways, such as "response to water", "response to abscisic acid", "cold acclimation", and "response to water deprivation", were significantly upregulated after low-temperature treatment. In contrast, the majority of genes with lower expression were related to "photosynthesis", "protein-chromophore linkage", and "chloroplast thylakoid membrane". Among them, Kyoto Encyclo

SUBMITTER: Chen T 

PROVIDER: S-EPMC12470158 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature