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Potential Roles of 1-Aminocyclopropane-1-carboxylic Acid Synthase Genes in the Response of Gossypium Species to Abiotic Stress by Genome-Wide Identification and Expression Analysis

文献类型： 外文期刊

作者： Li, Jie 1 ; Zou, Xianyan 2 ; Chen, Guoquan 3 ; Meng, Yongming 4 ; Ma, Qi 5 ; Chen, Quanjia 1 ; Wang, Zhi 2 ; Li, Fuguang 2 ;

作者机构： 1.Xinjiang Agr Univ, State Key Lab Cotton Biol, Xinjiang Res Base, Urumqi 830052, Peoples R China

2.Chinese Acad Agr Sci, Inst Cotton Res, State Key Lab Cotton Biol, Anyang 455000, Peoples R China

3.Zhengzhou Univ, Sch Agr Sci, State Key Lab Cotton Biol, Zhengzhou Res Base, Zhengzhou 450001, Peoples R China

4.Chinese Acad Agr Sci, Western Agr Res Ctr, Changji 831100, Peoples R China

5.Xinjiang Acad Agr & Reclamat Sci, Key Lab China Northwestern Inland Reg, Minist Agr & Rural Affairs, Cotton Res Inst, Shihezi 832003, Peoples R China

关键词： Gossypium hirsutum; ACS genes; expression patterns; abiotic stress; ethylene

期刊名称：PLANTS-BASEL （ 影响因子：4.658； 五年影响因子：4.827 ）

ISSN：

年卷期： 2022 年 11 卷 11 期

页码：

收录情况： SCI

摘要： Ethylene plays a pivotal role in plant stress resistance and 1-aminocyclopropane-1-carboxylic acid synthase (ACS) is the rate-limiting enzyme in ethylene biosynthesis. Upland cotton (Gossypium hirsutum L.) is the most important natural fiber crop, but the function of ACS in response to abiotic stress has rarely been reported in this plant. We identified 18 GaACS, 18 GrACS, and 35 GhACS genes in Gossypium arboreum, Gossypium raimondii and Gossypium hirsutum, respectively, that were classified as types I, II, III, or IV. Collinearity analysis showed that the GhACS genes were expanded from diploid cotton by the whole-genome-duplication. Multiple alignments showed that the C-terminals of the GhACS proteins were conserved, whereas the N-terminals of GhACS10 and GhACS12 were different from the N-terminals of AtACS10 and AtACS12, probably diverging during evolution. Most type II ACS genes were hardly expressed, whereas GhACS10/GhACS12 were expressed in many tissues and in response to abiotic stress; for example, they were highly and hardly expressed at the early stages of cold and heat exposure, respectively. The GhACS genes showed different expression profiles in response to cold, heat, drought, and salt stress by quantitative PCR analysis, which indicate the potential roles of them when encountering the various adverse conditions, and provide insights into GhACS functions in cotton's adaptation to abiotic stress.

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