Genome-wide analysis of the strigolactone biosynthetic and signaling genes in grapevine and their response to salt and drought stresses

PeerJ

article

Yanyan Yu¹  Jinghao Xu¹  Chuanyin Wang²  Yunning Pang¹  Lijian Li¹  Xinjie Tang¹  Bo Li³  Qinghua Sun¹ 

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

关键词: Strigolactones;    Grapevine;    Gene expression;    Stress tolerance;    Bioinformatics analysis;   

DOI  :  10.7717/peerj.13551

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

Strigolactones (SLs) are a novel class of plant hormones that play critical roles in regulating various developmental processes and stress tolerance. Although the SL biosynthetic and signaling genes were already determined in some plants such as Arabidopsis and rice, the information of SL-related genes in grapevine (Vitis vinifera L.) remains largely unknown. In this study, the SL-related genes were identified from the whole grapevine genome, and their expression patterns under salt and drought stresses were determined. The results indicated that the five genes that involved in the SL biosynthesis included one each of the D27, CCD7, CCD8, MAX1 and LBO genes, as well as the three genes that involved in the SL signaling included one each of the D14, MAX2, D53 genes. Phylogenetic analysis suggested that these SL-related proteins are highly conserved among different plant species. Promoter analysis showed that the prevalence of a variety of cis-acting elements associated with hormones and abiotic stress existed in the promoter regions of these SL-related genes. Furthermore, the transcription expression analysis demonstrated that most SL-related genes are involved in the salt and drought stresses response in grapevine. These findings provided valuable information for further investigation and functional analysis of SL biosynthetic and signaling genes in response to salt and drought stresses in grapevine.

【 授权许可】

CC BY