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Comparative Expression Profiling of Snf2 Family Genes During Reproductive Development and Stress Responses in Rice

文献类型： 外文期刊

作者： Guo, Mingliang 1 ; Zhao, Heming 2 ; He, Zhimei 3 ; Zhang, Wenchao 3 ; She, Zeyuan 4 ; Mohammadi, Mohammad Aqa 4 ; Shi, Chao 6 ; Yan, Maokai 4 ; Tian, Dagang 7 ; Qin, Yuan 4 ;

作者机构： 1.Fujian Agr & Forestry Univ, Coll Plant Protect, State Key Lab Ecol Pest Control Fujian & Taiwan Cr, Fuzhou, Peoples R China

2.Anhui Sci & Technol Univ, Coll Agr, Ctr Crop Biotechnol, Fengyang, Peoples R China

3.Fujian Agr & Forestry Univ, Coll Agr, Fuzhou, Peoples R China

4.Guangxi Univ, Coll Agr, State Key Lab Conservat & Utilizat Subtrop Agrobio, Guangxi Key Lab Sugarcane Biol, Nanning, Peoples R China

5.Fujian Agr & Forestry Univ, Coll Hort, Fuzhou, Peoples R China

6.Fujian Agr & Forestry Univ, Coll Life Sci, Fujian Prov Key Lab Haixia Appl Plant Syst Biol, Fuzhou, Peoples R China

7.Fujian Acad Agr Sci, Biotechnol Res Inst, Fujian Prov Key Lab Genet Engn Agr, Fuzhou, Peoples R China

8.Fujian Agr & Forestry Univ, Pingtan Sci & Technol Res Inst, Fuzhou, Peoples R China

关键词： rice (Oryza sativa L; ); Snf2 family; biotic and abiotic stress; OsCHR726; salinity stress

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：6.627； 五年影响因子：7.255 ）

ISSN： 1664-462X

年卷期： 2022 年 13 卷

页码：

收录情况： SCI

摘要： Sucrose non-fermenting 2 (Snf2) protein family, as chromatin remodeling factors, is an enormous and the most diverse protein family, which contributes to biological processes of replication, transcription, and DNA repair using the energy of adenosine triphosphate (ATP) hydrolysis. The members of Snf2 family proteins have been well characterized in Arabidopsis, rice, and tomato. Although this family received significant attention, few genes were identified uniquely for their roles in mediating reproductive development and stress tolerance in rice. In the present study, we comprehensively analyzed the expression profiling of Snf2 genes during reproductive development and biotic/abiotic stresses. Our results showed that five proteins (OsCHR712/715/720/726/739) were mainly localized in the nucleus, while OsCHR715/739 were also slightly expressed in the cell membrane. There were abundant cis-acting elements in the putative promoter of Snf2 genes, including dehydration, MeJA, MYB binding site for drought, ABA-responsive, and stress-responsive element. Most of the genes were induced immediately after Magnaporthe oryzae infection at 12 h post-infection (hpi). About 55% of the total genes were upregulated under salt and drought stresses during the entire time, and 22-35% of the total genes were upregulated at 3 h. It was noteworthy that the seven genes (OsCHR705, OsCHR706, OsCHR710, OsCHR714, OsCHR721, OsCHR726, and OsCHR737) were upregulated, and one gene (OsCHR712) was downregulated under salt and drought stresses, respectively. The deficiency of OsCHR726 mutations displayed a hypersensitive phenotype under salt stress. These results will be significantly useful features for the validation of the rice Snf2 genes and facilitate understanding of the genetic engineering of crops with improved biotic and abiotic stresses.

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