Molecular characterization of a stress-induced NAC gene, GhSNAC3, from Gossypium hirsutum

文献类型: 外文期刊

第一作者: Liu, Zhan-Ji

作者: Liu, Zhan-Ji;Li, Fei;Wang, Li-Guo;Liu, Ren-Zhong;Ma, Jun-Jun;Fu, Ming-Chuan;Ma, Jun-Jun

作者机构:

关键词: NAC gene; GhSNAC3 gene; expression analysis; drought; salt; Gossypium hirsutum

期刊名称:JOURNAL OF GENETICS ( 影响因子:1.166; 五年影响因子:1.212 )

ISSN: 0022-1333

年卷期: 2018 年 97 卷 2 期

页码:

收录情况: SCI

摘要: NAC genes, specific to plants, play important roles in plant development as well as in response to biotic and abiotic stresses. Here, a novel gene encoding a NAC domain, named as GhSNAC3, was isolated from upland cotton (Gossypium hirsutum L.). Sequence analyses showed that GhSNAC3 encodes a protein of 346 amino acids with an estimated molecular mass of 38.4 kDa and pI of 8.87. Transient localization assays in onion epidermal cells confirmed GhSNAC3 is a nuclear protein. Transactivation studies using a yeast system revealed that GhSNAC3 functions as a transcription activator. Quantitative real-time polymerase chain reaction analysis indicated that GhSNAC3 was induced by high salinity, drought and abscisic acid treatments. We overexpressed GhSNAC3 in tobacco by using Agrobacterium-mediated transformation. Transgenic lines produced longer primary roots and more fresh weight under salt and drought stresses as compared to wild-type plants. Collectively, our results indicated that overexpression of GhSNAC3 in tobacco can enhance drought and salt tolerances.

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[1]Molecular characterization of a stress-induced NAC gene, GhSNAC3, from Gossypium hirsutum. Liu, Zhan-Ji,Li, Fei,Wang, Li-Guo,Liu, Ren-Zhong,Ma, Jun-Jun,Fu, Ming-Chuan,Ma, Jun-Jun. 2018

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