Genome-Wide Identification and Characterization of the Xyloglucan Endotransglucosylase/Hydrolase (<i>XTH</i>) Gene Family in <i>Camellia oleifera</i> and the Function of <i>CoXTH1</i> During Drought Stress.

ABSTRACT: Xyloglucan endotransglucosylase/hydrolase (XTH) plays a significant role in plant responses and adaptation to abiotic stresses. However, the XTH gene family in Camellia oleifera remains largely unknown. Herein, 31 CoXTH genes from the C. oleifera genome, which were clustered into four evolutionary groups, were identified. Notably, CoXTH1, CoXTH6, CoXTH14, CoXTH28, and CoXTH31 showed significant upregulation under drought stress, suggesting their importance in stress responses. Furthermore, heterologous expression of CoXTH1, CoXTH14, and CoXTH28 in yeast improved yeast survival under drought stress. Overexpressing CoXTH1 in Arabidopsis thaliana significantly enhanced drought tolerance, characte

SUBMITTER: Ma Y 

PROVIDER: S-EPMC12694087 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature