LAUSR

The oomycete Phytopythium helicoides is a globally distributed plant pathogen, and causes crown blight, root rot and seedling damping in many agricultural plants. P. helicoides PF-he2 was isolated from infected Photinia × fraseri Dress in China. Here, a high-quality genome of PF-he2 was sequenced by a combination of PacBio and Illumina sequencing strategies. The genome is 49.09 Mb in length with 105 contigs. The N50 contig length is 860 kb, and BUSCO completeness is 94%. Gene prediction resulted in 16,807 protein-coding genes, and 1,663 secreted proteins were identified. In addition, we identified a series of proteins involved in pathogenicity, including 30 CRN effectors, 26 YxSL[RK] effectors, 30 NLP proteins, and 49 elicitin-like proteins. This genome provides a valuable resource for better understanding the genetic diversity and molecular basis of pathogenesis of P. helicoides, which will facilitate the development of effective control strategies.