Genome-Wide Identification and Expression Analysis of Genes in Reveals Their Potential Roles in Abiotic Stress Tolerance.

The bile acid sodium symporter (BASS) family plays an important role in transporting substances and coordinating plants' salt tolerance. However, the function of in has not yet been elucidated. In this study, eight genes distributed on five chromosomes were identified that belonged to four subfamilies. Expression profile analysis showed that was highly expressed in roots, whereas was highly expressed in flowers. The promoter element analysis also identified several typical homeopathic elements involved in abiotic stress tolerance and stress-related hormonal responses. Notably, under salt stress, the expression of was significantly upregulated; under osmotic stress, that of increased and then decreased; and under cold stress, that of generally declined. The protein-protein interaction analysis revealed that the homologous gene interacted with Nhd1 (N-mediated heading date-1) to alleviate salt stress in plants, while the homologous gene interacted with BLOS1 (biogenesis of lysosome-related organelles complex 1 subunit 1) via co-regulation with SNX1 (sorting nexin 1) to mitigate an unfavorable growing environment for roots. Further, Bra-miR396 (Bra-microRNA396) targeting and played a role in the plant response to osmotic and cold stress conditions, respectively. This research demonstrates that , and harbor great potential for regulating abiotic stresses. The findings will help advance the study of the functions of the gene family.