| population genetic analysis infers migration pathways of phytophthora ramorum in us nurseries. | 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 thi ... | 2009 | 19774068 |