Transcriptome sequencing and expression analysis in peanut reveal the potential mechanism response to Ralstonia solanacearum infection
文献类型： 外文期刊
作者： Wang, Xiao 1 ; Qi, Feiyan 2 ; Sun, Ziqi 2 ; Liu, Hongfei 2 ; Wu, Yue 2 ; Wu, Xiaohui 2 ; Xu, Jing 2 ; Liu, Hua 2 ; Qin, Li 2 ; Wang, Zhenyu 3 ; Sang, Suling 3 ; Dong, Wenzhao 2 ; Huang, Bingyan 2 ; Zheng, Zheng 2 ; Zhang, Xinyou 1 ;
作者机构： 1.Shenyang Agr Univ, Coll Agron, Shenyang 110866, Peoples R China
2.Minist Agr, Key Lab Oil Crops Huang Huai Hai Plains, Henan Prov Key Lab Oil Crops Improvement, Shennong Lab,Inst Crop Mol Breeding,Henan Acad Agr, Zhengzhou 450002, Peoples R China
3.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China
关键词： Peanut; Bacterial wilt; Full-length transcriptome; RNA-sequencing; Plant-pathogen pathway; Glutathione metabolism; Candidate gene
期刊名称：BMC PLANT BIOLOGY （ 影响因子：5.3； 五年影响因子：5.9 ）
ISSN： 1471-2229
年卷期： 2024 年 24 卷 1 期
页码：
收录情况： SCI
摘要： Background Bacterial wilt caused by Ralstonia solanacearum severely affects peanut (Arachis hypogaea L.) yields. The breeding of resistant cultivars is an efficient means of controlling plant diseases. Therefore, identification of resistance genes effective against bacterial wilt is a matter of urgency. The lack of a reference genome for a resistant genotype severely hinders the process of identification of resistance genes in peanut. In addition, limited information is available on disease resistance-related pathways in peanut. Results Full-length transcriptome data were used to generate wilt-resistant and -susceptible transcript pools. In total, 253,869 transcripts were retained to form a reference transcriptome for RNA-sequencing data analysis. Kyoto Encyclopedia of Genes and Genomes pathway enrichment analysis of differentially expressed genes revealed the plant-pathogen interaction pathway to be the main resistance-related pathway for peanut to prevent bacterial invasion and calcium plays an important role in this pathway. Glutathione metabolism was enriched in wilt-susceptible genotypes, which would promote glutathione synthesis in the early stages of pathogen invasion. Based on our previous quantitative trait locus (QTL) mapping results, the genes arahy.V6I7WA and arahy.MXY2PU, which encode nucleotide-binding site-leucine-rich repeat receptor proteins, were indicated to be associated with resistance to bacterial wilt. Conclusions This study identified several pathways associated with resistance to bacterial wilt and identified candidate genes for bacterial wilt resistance in a major QTL region. These findings lay a foundation for investigation of the mechanism of resistance to bacterial wilt in peanut.
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