Identification and Expression Profiling of Nonphosphorus Glycerolipid Synthase Genes in Response to Abiotic Stresses in .

 , a valuable Chinese herb, frequently experiences abiotic stresses, such as cold and drought, under natural conditions. Nonphosphorus glycerolipid synthase (NGLS) genes are closely linked to the homeostasis of membrane lipids under abiotic stress in plants. However, there is limited information on genes in . . In this study, a total of eight genes were identified from the . genome; these included three (, , ) genes, two (, ) genes, and three (, , ) genes. The gene structures and conserved motifs in the showed a high conservation during their evolution. Gene expression profiling showed that the were highly expressed in specific tissues and during rapid growth stages. Furthermore, most were strongly induced by freezing and post-freezing recovery. and were greatly induced by salt stress in leaves, while were primarily induced by salt stress in roots. Under drought stress, most were regulated by circadian rhythms, and was closely associated with drought recovery. Transcriptome analysis also revealed that MYB might be regulated by circadian rhythm and co-expressed with under drought stress. These results provide insight for the further functional investigation of NGLS and the regulation of nonphosphorus glycerolipid biosynthesis in .