Genome-wide identification, evolution, and expression of the SNARE gene family in wheat resistance to powdery mildew

PeerJ

article

Guanghao Wang¹  Deyu Long³  Fagang Yu²  Hong Zhang¹  Chunhuan Chen¹  Yajuan Wang¹  Wanquan Ji¹ 

[1] Shaanxi Research Station of Crop Gene Resources and Germplasm Enhancement, Ministry of Agriculture;College of Agronomy, Northwest A&F University;College of Life Sciences, Northwest A&F University

关键词: Wheat;    SNARE;    Genome-wide;    Expression pattern;    Gene family;    Powdery mildew;    Evolution;   

DOI  :  10.7717/peerj.10788

学科分类：社会科学、人文和艺术（综合）

来源: Inra

【 摘 要 】

SNARE proteins mediate eukaryotic cell membrane/transport vesicle fusion and act in plant resistance to fungi. Herein, 173 SNARE proteins were identified in wheat and divided into 5 subfamilies and 21 classes. The number of the SYP1 class type was largest in TaSNAREs. Phylogenetic tree analysis revealed that most of the SNAREs were distributed in 21 classes. Analysis of the genetic structure revealed large differences among the 21 classes, and the structures in the same group were similar, except across individual genes. Excluding the first homoeologous group, the number in the other homoeologous groups was similar. The 2,000 bp promoter region of the TaSNARE genes were analyzed, and many W-box, MYB and disease-related cis-acting elements were identified. The qRT-PCR-based analysis of the SNARE genes revealed similar expression patterns of the same subfamily in one wheat variety. The expression patterns of the same gene in resistant/sensitive varieties largely differed at 6 h after infection, suggesting that SNARE proteins play an important role in early pathogen infection. Here, the identification and expression analysis of SNARE proteins provide a theoretical basis for studies of SNARE protein function and wheat resistance to powdery mildew.

【 授权许可】

CC BY