Draft genome assemblies for tree pathogens Phytophthora pseudosyringae and Phytophthora boehmeriae

Area of Science:

• Plant pathology
• Microbial genomics
• Eukaryotic microbiology

Background:

• Phytophthora species are significant plant pathogens affecting numerous tree species.
• Understanding Phytophthora pathogenicity requires detailed genomic information.

Purpose of the Study:

• To sequence and analyze the genomes of two widespread Phytophthora species: P. pseudosyringae and P. boehmeriae.
• To identify genes associated with pathogenicity, including effectors and carbohydrate-active enzymes (CAZymes).

Main Methods:

• Whole-genome sequencing of Phytophthora pseudosyringae and Phytophthora boehmeriae.
• Bioinformatic analysis to identify candidate effector genes (RXLR) and carbohydrate-active enzymes (CAZymes).

Main Results:

• Generated genome assemblies of 49 Mb for P. pseudosyringae and 40 Mb for P. boehmeriae.
• Identified over 270 candidate RXLR effector genes per species.
• Discovered hundreds of candidate CAZyme genes in both species.

Conclusions:

• The genomic data significantly expands the sequence representation for the Phytophthora genus.
• These findings provide essential resources for future research into Phytophthora pathogenesis and host interactions.