文献类型： 外文期刊
作者： Huo, Yi-le 1 ; Liu, Si-wen 2 ; Huang, Huo-qing 2 ; Li, Zai-yuan 3 ; Ahmad, Mudassar 2 ; Zhuo, Meng-xia 2 ; Li, Chun-yu 2 ; Liu, Bo 3 ; Li, Ya-dong 1 ;
作者机构： 1.Jilin Agr Univ, Coll Life Sci, Changchun 13000, Peoples R China
2.Guangdong Acad Agr Sci, Key Lab South Subtrop Fruit Biol & Genet Resource, Guangdong Prov Key Lab Sci & Technol Res Fruit Tre, Inst Fruit Tree Res,Minist Agr & Rural Affairs, Guangzhou 510640, Peoples R China
3.Chinese Acad Agr Sci, Agr Genom Inst Shenzhen, Guangdong Lab Lingnan Modern Agr,Genome Anal Lab, Minist Agr & Rural Affairs,Shenzhen Branch, Shenzhen 518120, Peoples R China
4.Guangdong Lab Lingnan Modern Agr, Guangzhou 510640, Peoples R China
关键词： Musa; NBS-LRR; Disease resistance genes; Foc; Transcriptomics; dsRNA
期刊名称：SCIENTIA HORTICULTURAE （ 影响因子：4.2； 五年影响因子：4.6 ）
ISSN： 0304-4238
年卷期： 2024 年 336 卷
页码：
收录情况： SCI
摘要： Nucleotide binding site-leucine-rich repeat (NBS-LRR) genes are the most abundant known plant resistance (R) genes and are essential for plant stress tolerance. Fusarium oxysporum f. sp. cubense (Foc) is the causal agent of Banana Fusarium vascular wilt that threatens global banana production, yet, the role of NBS-LRR in disease resistance is unknown. We performed a genome-wide identification and analysis of NBS-LRR genes in M. acuminata and revealed a total of 97 NBS-LRR genes, of which 71 were divided into 17 clusters. Analyses of phylogenetic and conserved motifs indicated that NBS-LRR genes in the same cluster were conserved. Transcriptomic analysis revealed divergent functions of the NBS-LRR genes; genes within cluster 17 were activated in a moderately disease-resistant cultivar but repressed in a susceptible cultivar, especially the MaNBS89 gene. Transcriptional silencing of MaNBS89 led to more serious leaf injury compared to control plants. Overall, our study comprehensively revealed the expression profiles of NBS-LRR genes in an economically important plant and suggested a strong candidate gene (MaNBS89) for future use in resistance breeding in Musa diseases.
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