Late embryogenesis abundant gene LEA3 (Gh_A08G0694) enhances drought and salt stress tolerance in cotton
文献类型： 外文期刊
作者： Shiraku, Margaret L. 1 ; Magwanga, Richard Odongo 1 ; Zhang, Yuanyuan 1 ; Hou, Yuqing 1 ; Kirungu, Joy Nyangasi 1 ; Mehari, Teame Gereziher 1 ; Xu, Yanchao 1 ; Wang, Yuhong 1 ; Wang, Kunbo 1 ; Cai, Xiaoyan 1 ; Zhou, Zhongli 1 ; Liu, Fang 1 ;
作者机构： 1.Chinese Acad Agr Sci ICR, Inst Cotton Res, CAAS, State Key Lab Cotton Biol, Anyang 455000, Henan, Peoples R China
2.Jaram Oginga Odinga Univ Sci & Technol JOOUST, Sch Biol & Phys Sci SBPS, Main Campus,POB 210-40601, Bondo, Kenya
3.Zhengzhou Univ, Sch Agr Sci, Zhengzhou 450001, Henan, Peoples R China
关键词： Group 3 LEA; Osmotic stress; Overexpression; Stress tolerance; VIGS; Yeast two-hybrid
期刊名称：INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES （ 影响因子：8.025； 五年影响因子：7.626 ）
ISSN： 0141-8130
年卷期： 2022 年 207 卷
页码：
收录情况： SCI
摘要： Plants have evolved a complex and organized response to abiotic stress that involves physiological and metabolic reprogramming, transcription control, epigenetic regulation, and expressions of thousand interacting genes for instance the late embryogenesis abundant (LEA) proteins are expressed in multiple environmental variables during the plant developmental period, and thus play critical role in enhancing drought and salt stress tolerance. A comprehensive molecular and functional characterization of the LEA3 gene was carried out in cotton under abiotic stress conditions in order to elucidate their functions. Seventy eight genes were identified in cotton, and were clustered into six clades moreover; the LEA genes were more upregulated in the tissues of the tetraploid cotton compared to the diploid type. A key gene, Gh_A08G0694 was the most upregulated, and was knocked in tetraploid cotton, the knocked out significantly increased the susceptibility of cotton plants to salinity and drought stresses, moreover, several ABA/stress-associated genes were down regulated. Similarly, overexpression of the key gene, significantly increased tolerance of the overexpressed plants to drought and salinity stress. The key gene is homologous to GhLEA3 protein, found to have strong interaction to key abiotic stress tolerance genes, voltage-dependent anion channel 1 (VDAC1) and glyceraldehyde-3-phosphate dehydrogenase A (gapA).
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