Insights into the gene and protein structures of the CaSWEET family members in chickpea (Cicer arietinum), and their gene expression patterns in different organs under various stress and abscisic acid treatments
2022
La, Hong Viet | Chu, Ha Duc | Tran, Cuong Duy | Nguyen, Kien Huu | Le, Quynh Thi Ngoc | Hoang, Chinh Minh | Cao, Bang Phi | Pham, Anh Tuyen Cong | Nguyen, Bach Duc | Nguyen, Trung Quoc | Van Nguyen, Loc | Ha, Chien Van | Le, Hien Thi | Le, Ham Huy | Le, Thao Duc | Tran, Lam-son Phan
‘Sugars Will Eventually be Exported Transporters’ (SWEETs) are a group of sugar transporters that play crucial roles in various biological processes, particularly plant stress responses. However, no information is available yet for the CaSWEET family in chickpea. Here, we identified all putative CaSWEET members in chickpea, and obtained their major characteristics, including physicochemical patterns, chromosomal distribution, subcellular localization, gene organization, conserved motifs and three-dimensional protein structures. Subsequently, we explored available transcriptome data to compare spatiotemporal transcript abundance of CaSWEET genes in various major organs. Finally, we studied the changes in their transcript levels in leaves and/or roots following dehydration and exogenous abscisic acid treatments using RT-qPCR to obtain valuable information underlying their potential roles in chickpea responses to water-stress conditions. Our results provide the first insights into the characteristics of the CaSWEET family members and a foundation for further functional characterizations of selected candidate genes for genetic engineering of chickpea.
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