摘要
The stress-associated protein （SAP） multigene family is conserved in both animals and plants. Its function in some an- imals and plants are known, but it is yet to be deciphered in wheat （Triticum aestivum L.）. We identified the wheat gene TaSAP17-D, a member of the SAP gene family with an AN1/AN1 conserved domain. Subcellular localization indicated that TaSAP17-D localized to the nucleus, cytoplasm, and cell membrane. Expression pattern analyses revealed that TaSAP17-D was highly expressed in seedlings and was involved in NaCI response, polyethylene glycol （PEG）, cold, and exogenous abscisic acid （ABA）. Constitutive expression of TaSAP17-D in transgenic Arabidopsis resulted in enhanced tolerance to salt stress, confirmed by improved multiple physiological indices and significantly upregulated marker genes related to salt stress response. Our results suggest that TaSAP17-D is a candidate gene that can be used to protect crop plants from salt stress.
The stress-associated protein （SAP） multigene family is conserved in both animals and plants. Its function in some an- imals and plants are known, but it is yet to be deciphered in wheat （Triticum aestivum L.）. We identified the wheat gene TaSAP17-D, a member of the SAP gene family with an AN1/AN1 conserved domain. Subcellular localization indicated that TaSAP17-D localized to the nucleus, cytoplasm, and cell membrane. Expression pattern analyses revealed that TaSAP17-D was highly expressed in seedlings and was involved in NaCI response, polyethylene glycol （PEG）, cold, and exogenous abscisic acid （ABA）. Constitutive expression of TaSAP17-D in transgenic Arabidopsis resulted in enhanced tolerance to salt stress, confirmed by improved multiple physiological indices and significantly upregulated marker genes related to salt stress response. Our results suggest that TaSAP17-D is a candidate gene that can be used to protect crop plants from salt stress.
基金
supported by the National Key Research and Development Program of China (2016YFD0100605)
the Agricultural Science and Technology Innovation Program, China (ASTIP)
