Genome-Wide Analysis of the GRF Family Reveals Their Involvement in Abiotic Stress Response in Cassava
文献类型： 外文期刊
作者： Shang, Sang 1 ; Wu, Chunlai 2 ; Huang, Chao; Tie, Weiwei 2 ; Yan, Yan 2 ; Ding, Zehong 2 ; Xia, Zhiqiang 2 ; Wang, Wen 1 ;
作者机构： 1.Hainan Univ, Trop Agr & Foresty Inst, Haikou 570228, Hainan, Peoples R China
2.Chinese Acad Trop Agr Sci, Key Lab Biol & Genet Resources Trop Crops, Inst Trop Biosci & Biotechnol, Haikou 571101, Hainan, Peoples R China
3.Chinese Acad Trop Agr
关键词： cassava; abiotic stress; gene expression; identification; GENERAL REGULATORY FACTOR (GRF) protein family
期刊名称：GENES （ 影响因子：4.096； 五年影响因子：4.339 ）
ISSN： 2073-4425
年卷期： 2018 年 9 卷 2 期
页码：
收录情况： SCI
摘要： GENERAL REGULATORY FACTOR (GRF) proteins play vital roles in the regulation of plant growth, development, and response to abiotic stress. However, little information is known for this gene family in cassava (Manihot esculenta). In this study, 15 MeGRFs were identified from the cassava genome and were clustered into the epsilon and the non-epsilon groups according to phylogenetic, conserved motif, and gene structure analyses. Transcriptomic analyses showed eleven MeGRFs with constitutively high expression in stems, leaves, and storage roots of two cassava genotypes. Expression analyses revealed that the majority of GRFs showed transcriptional changes under cold, osmotic, salt, abscisic acid (ABA), and H2O2 treatments. Six MeGRFs were found to be commonly upregulated by abiotic stress, ABA, and H2O2 treatments, which may be the converging points of multiple signaling pathways. Interaction network analysis identified 18 possible interactors of MeGRFs. Taken together, this study elucidates the transcriptional control of MeGRFs in tissue development and the responses of abiotic stress and related signaling in cassava. Some constitutively expressed, tissue-specific, and abiotic stress-responsive candidate MeGRF genes were identified for the further genetic improvement of crops.
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