您好,欢迎访问中国热带农业科学院 机构知识库!

Deep RNA-seq analysis reveals key responding aspects of wild banana relative resistance to Fusarium oxysporum f. sp. cubense tropical race 4

文献类型: 外文期刊

作者: Li, Wei-Ming 1 ; Dita, Miguel 3 ; Rouard, Mathieu 4 ; Wu, Wei 1 ; Roux, Nicolas 4 ; Xie, Jiang-Hui 2 ; Ge, Xue-Jun 1 ;

作者机构: 1.Chinese Acad Sci, South China Bot Garden, Key Lab Plant Resources Conservat & Sustainable U, Guangzhou 510650, Peoples R China

2.CATAS, Minist Agr, Key Lab Trop Fruit Biol, South Subtrop Crops Res Inst, Zhanjiang 524091, Peoples R China

3.Brazilian Agr Res Corp, Embrapa Mandioca & Fruticultura, BR-44380000 Cruz Das Almas, BA, Brazil

4.Biovers Int, Parc Sci Agropolis 2, F-34397 Montpellier 5, France

5.CGIAR Res Programme Roots Tubers & Bananas, Cherbourg, France

关键词: Musa; Banana wild relative; Disease resistance; FocTR4

期刊名称:FUNCTIONAL & INTEGRATIVE GENOMICS ( 影响因子:3.41; 五年影响因子:3.616 )

ISSN: 1438-793X

年卷期:

页码:

收录情况: SCI

摘要: Tropical race 4 of Fusarium oxysporum f. sp. cubense (FocTR4) is seriously threatening the banana industry worldwide. Resistant genotypes are present in wild relatives of banana, but little is known about the genetic and molecular mechanisms driving resistance responses. In this work, through in-depth expression analysis, we compared the responses of the resistant wild relative Musa acuminata ssp. burmanicoides (WTB) with the susceptible banana cultivar "Brizilian" (CAV, as it belongs to the Cavendish subgroup) to FocTR4 infection. Our findings showed that 1196 defense-related genes in the resistant WTB were differentially expressed genes (DEGs); only 358 defense-related DEGs were detected in CAV. DEGs related to pattern recognition receptors (PRRs) and disease resistance (R genes) were found in both genotypes, indicating the onset of both basal and specific defenses to FocTR4. Genes associated with cell wall modification exhibited a more remarkable upregulation in WTB than in CAV and might be involved in resistance during penetration steps. Our data also suggested that the high resistance of WTB is quantitatively driven with larger numbers and higher expression levels of defense-related DEGs. Fine-tuning studies to understand the resistance responses of WTB at early stages should be conducted to better support banana breeding programs. Further investigations are also required to validate the role of key genes screened in this study.

  • 相关文献
作者其他论文 更多>>