Analysis of The Genome Sequence of Phomopsis Vexans: A Fungal Pathogen Causing Phomopsis Blight of Eggplant

Abstract

Background: Phomopsis vexans is a phytopathogenic fungus causing Phomopsis blight of eggplant. This disease is one of the major issues reducing eggplants production. To lay a solid foundation for the research of pathogenicity and to understand the mechanism of the disease development, the genome of an isolate PV4 was sequenced, assembled and analyzed from Guangdong, China. Results: The assembled complete genome size of Phomopsis vexans was about 59.78 Mb with 51.24% G+C content and 4.93Mb contig N50. In the genome, 3,552 annotated repetitive elements were identified. A total of 15,034 genes with 1,790bp average length were predicted, of which 14,116 genes were annotated by NCBI nr database. Moreover, 1,206 genes were annotated from Carbohydrate-Active enzymes (CAZy) Database which may play a role in degrading plant cell walls. At last, 134 effector proteins were predicted. Conclusions: The present genome is the first genome of Phomopsis vexans. The information obtained from this study support important resource for research on the pathogen and for sheding light on its pathogenicity mechanism.