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Systematical characterization of GRF gene family in sorghum, and their potential functions in aphid resistance

文献类型： 外文期刊

作者： Shi, Yannan 1 ; Wang, Xinyu 1 ; Wang, Jinping 1 ; Niu, Jingtian 1 ; Du, Ruiheng 1 ; Ji, Guisu 1 ; Zhu, Lining 2 ; Zhang, Jing 3 ; Lv, Peng 1 ; Cao, Junfeng 4 ;

作者机构： 1.Hebei Acad Agr & Forestry Sci, Hebei Branch, Inst Millet Crops, China Natl Sorghum Improvement Ctr, Shijiazhuang 050035, Peoples R China

2.Hebei Nijiao Brewing Technol Innovat Ctr, Xingtai 054000, Peoples R China

3.Hebei Seed Management Stn, Shijiazhuang 050031, Peoples R China

4.Shanghai Jiao Tong Univ, Plant Biotechnol Res Ctr, Fudan SJTU Nottingham Plant Biotechnol R&D Ctr, Sch Agr & Biol,Key Lab Urban Agr South,Minist Agr, Shanghai 200240, Peoples R China

关键词： Growth Regulating Factors (GRF); Sorghum (Sorghum bicolor); Phylogenetics; Organ-specific expression; Aphid stress

期刊名称：GENE （ 影响因子：3.913； 五年影响因子：3.48 ）

ISSN： 0378-1119

年卷期： 2022 年 836 卷

页码：

收录情况： SCI

摘要： Sorghum (Sorghum bicolor) is the fifth important cereal and an industrial energy crop in the world. Growth Regulation Factors (GRFs) play an important role in response to environmental stress, however, the knowledge of GRFs relating to the pest resistance is lacking. Here, we identified 8 GRF genes harboring the typical QLQ (glutamine, leucine, glutamine) and WRC (tryptophan, arginine, cysteine) domains in Sorghum, which could be classified into 4 clades through phylogenetic analysis. The SbGRF genes express in most tissues, while more than half of them express at the highest level in inflorescence. To further investigate their possible role in stress response, we analyzed the transcriptomics data. The results showed that SbGRFs could respond to the abiotic stresses including heat, salt and drought stress. Furthermore, combined the data with qRT-PCR, SbGRF1, 2, 4 and 7 were identified as dominant genes response to the aphid-induced stress. SSR markers close to these genes were also searched. Above all, we summarized the SbGRFs and provided their potential roles in aphid response.

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