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GmNFYA13 Improves Salt and Drought Tolerance in Transgenic Soybean Plants
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GmNFYA13 Improves Salt and Drought Tolerance in Transgenic Soybean Plants
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Journal Article
GmNFYA13 Improves Salt and Drought Tolerance in Transgenic Soybean Plants
2020
Overview
NF-YA transcription factors function in modulating tolerance to abiotic stresses that are serious threats to crop yields. In this study, GmNFYA13 , an NF-YA gene in soybean, was strongly induced by salt, drought, ABA, and H2O2, and suppressed by tungstate, an ABA synthesis inhibitor. The GmNFYA13 transcripts were detected in different tissues in seedling and flowering stages, and the expression levels in roots were highest. GmNFYA13 is a nuclear localization protein with self-activating activity. Transgenic Arabidopsis plants overexpressing GmNFYA13 with higher transcript levels of stress-related genes showed ABA hypersensitivity and enhanced tolerance to salt and drought stresses compared with WT plants. Moreover, overexpression of GmNFYA13 resulted in higher salt and drought tolerance in OE soybean plants, while suppressing it produced the opposite results. In addition, GmNFYA13 could bind to the promoters of GmSALT3 , GmMYB84 , GmNCED3 , and GmRbohB to regulate their expression abundance in vivo . The data in this study suggested that GmNFYA13 enhanced salt and drought tolerance in soybean plants.
