Whole Genome Re-sequencing Reveals Natural Variation and Adaptive Evolution of Phytophthora sojae.

ABSTRACT: Due to the monocultural basis of agricultural crops, mutated plant microbes with increased pathogenicity can easily spread in the field and lead to serious yield losses. As a major threat to a wide range of crop plants, oomycete pathogens continuously undergo adaptive evolution to overcome plant defense barriers. However, the genetic basis of their evolution at the molecular level remains largely unknown. Here, we investigated the nature variation and the population genomics of the soybean pathogen Phytophthora sojae by high-throughput genome re-sequencing. Genomic variation analysis revealed uneven "two-speed" evolutionary pattern with genes in gene-sparse regions (GSRs) showing higher rates of structural polymorphisms and positive selection. GSRs are enriched in effector genes and

SUBMITTER: Zhang X 

PROVIDER: S-EPMC6895562 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature