"This USDA website will not be updated during a lapse in federal funding. Content on this website will not be current or maintained until funding issues have been resolved. However, if there is information that affects security, life, and property, this website will continue to update that information during a funding lapse."

Skip to content. | Skip to navigation

You are here: Home Resources Links Phytophthora ramorum ...

Phytophthora ramorum Genome

Phytophthora is a genus of the Oomycetes (water molds) which, through convergent evolution, have similarities to fungi. However, oomycetes are not fungi (as had been earlier thought), but are part of Stramenopiles, a kingdom distinct from plants, fungi, and animals that also includes diatoms and golden-brown and brown algae, such as kelp. Fifty-nine species of Phytophthora are recognized. They attack hundreds of different plant species, including many crops, costing tens of billions of dollars in damage per year. Genome sequencing efforts at the Joint Genome Institute (JGI) have focused on two species, Phytophthora sojae and P. ramorum. P. sojae has been developed as a model species for the genus, having in place excellent genetic and genomics resources (including genetic maps, BAC libraries, and EST sequences), as well as having a well organized community of researchers. The particularly virulent P. ramorum is now destroying coastal oaks in California (causing "Sudden Oak Death"), attacks black oak, shreve oak, and tan oak, as well as a variety of shrubs that inhabit the oak ecosystems, and threatens the oak forests in the Sierra Nevada and, potentially, the red oak forests of the east coast. DOE Joint Genome Institute © 2004

Phytophthora ramorum Genome

Document Actions
Personal tools