GhASHH1.A and GhASHH2.A Improve Tolerance to High and Low Temperatures and Accelerate the Flowering Response to Temperature in Upland Cotton (Gossypium hirsutum)
文献类型： 外文期刊
作者： Ju, Jisheng 1 ; Yang, Junning 1 ; Wei, Jiazhi 1 ; Yuan, Wenmin 1 ; Li, Ying 1 ; Li, Dandan 1 ; Ling, Pingjie 1 ; Ma, Qi 2 ; Wang, Caixiang 1 ; Dai, Maohua 3 ; Su, Junji 1 ;
作者机构： 1.Gansu Agr Univ, Coll Life Sci & Technol, Gansu Prov Key Lab Aridland Crop Sci, Lanzhou 730070, Peoples R China
2.Xinjiang Acad Agr & Reclamat Sci, Cotton Res Inst, Shihezi 832000, Peoples R China
3.Hebei Acad Agr & Forestry Sci, Inst Dryland Farming, Hebei Prov Key Lab Crop Drought Resistance Res, Hengshui 053000, Peoples R China
关键词： upland cotton; temperature; virus-induced gene silencing (VIGS); temperature stress; flowering time
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：4.9； 五年影响因子：5.7 ）
ISSN： 1661-6596
年卷期： 2024 年 25 卷 20 期
页码：
收录情况： SCI
摘要： The trithorax group (TrxG) complex is an important protein in the regulation of plant histone methylation. The ABSENT, SMALL, OR HOMEOTIC DISCS 1 (ASH1) gene family, as important family members of the TrxG complex, has been shown to regulate tolerance to abiotic stress and growth and development in many plants. In this study, we identified nine GhASH1s in upland cotton. Bioinformatics analysis revealed that GhASH1s contain a variety of cis-acting elements related to stress resistance and growth and development. The transcriptome expression profiles revealed that GhASHH1.A and GhASHH2.A genes expression were upregulated in flower organs and in response to external temperature stress. The results of virus-induced gene silencing (VIGS) indicated that GhASHH1.A and GhASHH2.A genes silencing reduced the ability of cotton to adapt to temperature stress and delayed the development of the flowering phenotype. We also showed that the silencing of these two target genes did not induce early flowering at high temperature (32 degrees C), suggesting that GhASHH1.A and GhASHH2.A might regulate cotton flowering in response to temperature. These findings provide genetic resources for future breeding of early-maturing and temperature-stress-tolerant cotton varieties.
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