Comparative genomics of downy mildews reveals potential adaptations to biotrophy.

ABSTRACT:

Background

Spinach downy mildew caused by the oomycete Peronospora effusa is a significant burden on the expanding spinach production industry, especially for organic farms where synthetic fungicides cannot be deployed to control the pathogen. P. effusa is highly variable and 15 new races have been recognized in the past 30 years.

Results

We virulence phenotyped, sequenced, and assembled two isolates of P. effusa from the Salinas Valley, California, U.S.A. that were identified as race 13 and 14. These assemblies are high quality in comparison to assemblies of other downy mildews having low total scaffold count (784 & 880), high contig N₅₀s (48 kb & 52 kb), high BUSCO completion and low BUSCO duplication scores and share many syntenic blocks with Phytophthora speci

SUBMITTER: Fletcher K 

PROVIDER: S-EPMC6264045 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature