Population genetic analysis infers migration pathways of Phytophthora ramorum in US nurseries.

ABSTRACT: Recently introduced, exotic plant pathogens may exhibit low genetic diversity and be limited to clonal reproduction. However, rapidly mutating molecular markers such as microsatellites can reveal genetic variation within these populations and be used to model putative migration patterns. Phytophthora ramorum is the exotic pathogen, discovered in the late 1990s, that is responsible for sudden oak death in California forests and ramorum blight of common ornamentals. The nursery trade has moved this pathogen from source populations on the West Coast to locations across the United States, thus risking introduction to other native forests. We examined the genetic diversity of P. ramorum in United States nurseries by microsatellite genotyping 279 isolates collected from 19 states between 2004 an

SUBMITTER: Goss EM 

PROVIDER: S-EPMC2736564 | biostudies-literature | 2009 Sep

REPOSITORIES: biostudies-literature