Identification and expression analysis of xyloglucan endotransglucosylase/hydrolase (XTH) family in grapevine ( Vitis vinifera L.)

PeerJ

article

Tian Qiao¹  Lei Zhang¹  Yanyan Yu¹  Yunning Pang¹  Xinjie Tang¹  Xiao Wang¹  Lijian Li¹  Bo Li²  Qinghua Sun¹ 

[1] State Key Laboratory of Crop Biology, College of Life Science, Shandong Agricultural University;Shandong Academy of Grape, Shandong Academy of Agricultural Sciences

关键词: VvXTH;    Vitis vinifera;    Phylogenetic analysis;    Expression pattern;    Abiotic stress;   

DOI  :  10.7717/peerj.13546

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Xyloglucan endotransglucosylases/hydrolases (XTH) are key enzymes in cell wall reformulation. They have the dual functions of catalyzing xyloglucan endotransglucosylase (XET) and xyloglucan endonuclease (XEH) activity and play a crucial role in the responses against abiotic stresses, such as drought, salinity, and freezing. However, a comprehensive analysis of the XTH family and its functions in grapevine (Vitis vinifera L.) has not yet been completed. In this study, 34 XTHs were identified in the whole grapevine genome and then named according to their distribution on chromosomes. Based on a phylogenetic analysis including Arabidopsis XTHs, the VvXTHs were classified into three groups. Cis-element analysis indicated that these family members are related to most abiotic stresses. We further selected 14 VvXTHs from different groups and then examined their transcription levels under drought and salt stress. The results indicated that the transcription levels of selected VvXTHs in the leaves and roots presented the largest changes, suggesting that VvXTHs are likely to take part in the responses to drought and salt stress in grapevines. These results provide useful evidence for the further investigation of VvXTHs function in response to abiotic stresses in grapevine.

【 授权许可】

CC BY