Expression analysis of 19 bZIP genes in Tartary buckwheat and it’s response to abscisic acid (ABA)

Tartary buckwheat is a kind of plant which can be used as medicine as well as edible. ABA signaling is important for plants to respond to drought. In this study, the germination, root length, stoma, and anthocyanin accumulation of Tartary buckwheat were all significantly affected by ABA. In ABA signaling, the bZIP gene family is a critical member of the ABA signaling pathway in plants, which plays an important role in plants response to drought. Through the analysis of the origin relationship between the bZIP family and related species, found that 19 bZIP genes in Tartary buckwheat were relatively conservative, which laid a foundation for the further study of the bZIP family. qRT-PCR showed that most of the group members were induced by ABA stress, including different times or concentration of ABA. In addition, the expression patterns of FtbZIPs in plant organs were different, indicating that they may have different functions in Tartary buckwheat responding to drought. In a word, this study will be helpful to further analyze and provide clues to improve the genetic breeding of Tartary buckwheat for drought resistance and its economic value.