香蕉枯萎病是一种毁灭病害，是国际植物检疫对象，由尖孢镰刀菌古巴专化型侵染引起。在我省主要分布1号和4号小种，1号小种主要为害粉蕉，4号小种为害粉蕉和香蕉（巴西蕉，主要吃的品种）。病原菌在土壤中存活时间达数年之久，严重的田块甚至绝收。

由于4号对当前栽培品种威胁很大，所以大家都在想对其进行防控。 我们基因组揭示4号进化速率，包括转座子变异都要比1号大，这些变异可能是导致4号能感染巴西蕉。

本项目主要完成者有福建农林大写云英子博士， 宋爱霞同学， 王宗华教授 和张亮生教授。 

在此工作完成基础之上，我们与王宗华教授课题组还继续展开合作，对4号小种感染巴西蕉机制做进一步分析，希望能解析其中感染机制。

Mol Plant Microbe Interact. 2019 May 7. doi: 10.1094/MPMI-03-19-0063-A. [Epub ahead of print]

Genome data of Fusarium oxysporum f. sp. cubense race 1 and tropical race 4 isolates using long-read sequencing.

Yun Y1,2, Song A3, Bao J4, Chen S5, Lu S6, Cheng C7, Zheng W8, Wang Z9,10, Zhang L11.

Author information

Abstract

Fusarium wilt of banana is caused by the soil-borne fungal pathogen Fusarium oxysporum f. sp. cubense (Foc). We generated two chromosome-level assemblies of Foc race 1 and tropical race 4 strains using single-molecule real-time sequencing. The Foc1 and FocTR4 assemblies had 35 and 29 contigs with contig N50 lengths of 2.08 Mb and 4.28 Mb, respectively. These two new references genomes represent a greater than 100-fold improvement over the contig N50 statistics of the previous short read-based Foc assemblies. The two high-quality assemblies reported here will be a valuable resource for the comparative analysis of Foc races at the pathogenic levels.

10.1038@s41589-019-0287-5.pdf