The Autophagy-Related Musa acuminata Protein MaATG8F Interacts with MaATG4B, Regulating Banana Disease Resistance to Fusarium oxysporum f. sp. cubense Tropical Race 4
文献类型： 外文期刊
作者： Huang, Huoqing 1 ; Tian, Yuzhen 2 ; Huo, Yile 1 ; Liu, Yushan 1 ; Yang, Wenlong 1 ; Li, Yuqing 1 ; Zhuo, Mengxia 1 ; Xiang, Dandan 1 ; Li, Chunyu 1 ; Yi, Ganjun 1 ; Liu, Siwen 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Inst Fruit Tree Res, Key Lab South Subtrop Fruit Biol & Genet Res Utili, Guangdong Prov Key Lab Trop & Subtrop Fruit Tree R, Guangzhou 510640, Peoples R China
2.South China Normal Univ, Coll Biophoton, Guangdong Prov Key Lab Laser Life Sci, Guangzhou 510631, Peoples R China
3.Guangdong Lab Lingnan Modern Agr, Guangzhou 510640, Peoples R China
4.Maoming Branch, Guangdong Lab Lingnan Modern Agr, Maoming 525000, Peoples R China
关键词： ATG8; ATG4; autophagy; Fusarium oxysporum f. sp. cubense tropical race 4; plant disease resistance
期刊名称：JOURNAL OF FUNGI （ 影响因子：4.7； 五年影响因子：5.2 ）
ISSN：
年卷期： 2024 年 10 卷 2 期
页码：
收录情况： SCI
摘要： Banana is one of the most important fruits in the world due to its status as a major food source for more than 400 million people. Fusarium oxysporum f. sp. cubense tropical race 4 (Foc TR4) causes substantial losses of banana crops every year, and molecular host resistance mechanisms are currently unknown. We here performed a genomewide analysis of the autophagy-related protein 8 (ATG8) family in a wild banana species. The banana genome was found to contain 10 MaATG8 genes. Four MaATG8s formed a gene cluster in the distal part of chromosome 4. Phylogenetic analysis of ATG8 families in banana, Arabidopsis thaliana, citrus, rice, and ginger revealed five major phylogenetic clades shared by all of these plant species, demonstrating evolutionary conservation of the MaATG8 families. The transcriptomic analysis of plants infected with Foc TR4 showed that nine of the MaATG8 genes were more highly induced in resistant cultivars than in susceptible cultivars. Finally, MaATG8F was found to interact with MaATG4B in vitro (with yeast two-hybrid assays), and MaATG8F and MaATG4B all positively regulated banana resistance to Foc TR4. Our study provides novel insights into the structure, distribution, evolution, and expression of the MaATG8 family in bananas. Furthermore, the discovery of interactions between MaATG8F and MaATG4B could facilitate future research of disease resistance genes for the genetic improvement of bananas.
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