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

• Published in: PeerJ (San Francisco, CA) CA), 2022-06, Vol.10, p.e13551-e13551, Article e13551
• Main Authors: Yu, Yanyan, Xu, Jinghao, Wang, Chuanyin, Pang, Yunning, Li, Lijian, Tang, Xinjie, Li, Bo, Sun, Qinghua
• Format: Article
• Language: English
• Subjects: Abiotic stress; Agricultural Science; Arabidopsis - genetics; Bioinformatics; Bioinformatics analysis; Biosynthesis; Carotenoids; Drought; Droughts; Gene expression; Genes; Genomes; Genomics; Grapevine; Heterocyclic Compounds, 3-Ring - metabolism; Lactones - metabolism; Localization; Molecular Biology; Phylogenetics; Phylogeny; Phytohormones; Plant resistance; Plant Science; Plant tolerance; Proteins; Salinity; Signal transduction; Sodium Chloride - metabolism; Sodium Chloride, Dietary - metabolism; Soybeans; Stress tolerance; Strigolactones; Vitis vinifera
• ISSN: 2167-8359; 2167-8359
• DOI: 10.7717/peerj.13551

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 and rice, the information of SL-related genes in grapevine ( 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 , , , and genes, as well as the three genes that involved in the SL signaling included one each of the , , 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 -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.