Genome Resource Announcement for Two Isolates of Phytophthora sansomeana with Varying Levels of Pathogenicity on Soybean

Abstract

Phytophthora sansomeana was recognized as a distinct species in 2009. It has since been detected in Phytophthora surveys across the North Central region of the United States in recent years. Two isolates of P. sansomeana with moderate and high levels of pathogenicity (Psan_MP and Psan_HP, respectively), based on lesion development on soybean tap roots, were chosen for Oxford Nanopore Technologies long-read genome sequencing to allow within-species genomic comparisons between isolates with different levels of pathogenicity on soybean. The genome assembly size, number of predicted protein-encoding genes, and number of candidate effectors were greater in the highly pathogenic isolate (Psan_HP) than in the moderately pathogenic isolate (Psan_MP). Future work should more closely examine the context of P. sansomeana pathogenicity mechanisms relative to other Phytophthora species. [Figure: see text] Copyright © 2023 The Author(s). This is an open access article distributed under the CC BY 4.0 International license.

Keywords

• bioinformatics
• effectors
• genome assembly
• MinION long read sequencing
• oomycetes
• soybean root rot