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Genome-wide analysis of growth-regulating factor genes in grape (Vitis vinifera L.): identification, characterization and their responsive expression to osmotic stress

文献类型： 外文期刊

作者： Hu, Qiang 1 ; Jiang, Binyu 1 ; Wang, Liru 1 ; Song, Yanjing 3 ; Tang, Xiaoli 1 ; Zhao, Yanhong 5 ; Fan, Xiaobin 1 ; Gu, Yafeng 1 ; Zheng, Qiuling 6 ; Cheng, Jieshan 1 ; Zhang, Hongxia 1 ;

作者机构： 1.Ludong Univ, Engn Res Inst Agr & Forestry, 186 Hongqizhong Rd, Yantai 264025, Shandong, Peoples R China

2.China Agr Univ, Yantai Inst, 2006 Binhaizhong Rd, Yantai 264670, Shandong, Peoples R China

3.Shandong Acad Agr Sci, Shandong Inst Sericulture, 21 Zhichubei Rd, Yantai 264001, Shandong, Peoples R China

4.Ludong Univ, Coll Agr, 186 Hongqizhong Rd, Yantai 264025, Shandong, Peoples R China

5.Ludong Univ, Key Lab Mol Module Based Breeding High Yield & Ab, 186 Hongqizhong Rd, Yantai 264025, Shandong, Peoples R China

6.Yantai Acad Agr Sci, 26 West Gangcheng Ave, Yantai 265599, Shandong, Peoples R China

关键词： Grape; Growth-regulating factor; Osmotic stress; Transgenic plants

期刊名称：PLANT CELL REPORTS （ 影响因子：4.964； 五年影响因子：5.004 ）

ISSN： 0721-7714

年卷期：

页码：

收录情况： SCI

摘要： Key message Identification, characterization and osmotic stress responsive expression of growth-regulating factor genes in grape. The growth and fruit production of grape vine are severely affected by adverse environmental conditions. Growth-regulating factors (GRFs) play a vital role in the regulation of plant growth, reproduction and stress tolerance. However, their biological functions in fruit vine crops are still largely unknown. In the present study, a total number of nine VvGRFs were identified in the grape genome. Phylogenetic and collinear relationship analysis revealed that they formed seven subfamilies, and have gone through three segmental duplication events. All VvGRFs were predicted to be nucleic localized and contained both the conserved QLQ and WRC domains at their N-terminals, one of the typical structural features of GRF proteins. Quantitative real-time PCR analyses demonstrated that all VvGRFs, with a predominant expression of VvGRF7, were constitutively expressed in roots, leaves and stems of grape plants, and showed responsive expression to osmotic stress. Further growth phenotypic analysis demonstrated that ectopic expression of VvGRF7 promoted the growth and sensitivity of transgenic Arabidopsis plants to osmotic stress. Our findings provide important information for the future study of VvGRF gene functions, and potential gene resources for the genetic breeding of new fruit vine varieties with improved fruit yield and stress tolerance.

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