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Phytophthora Genome Sequences Uncover Evolutionary Origins and Mechanisms of Pathogenesis
Ist Teil von
Science (American Association for the Advancement of Science), 2006-04, Vol.313 (5791)
Ort / Verlag
United States
Erscheinungsjahr
2006
Quelle
American Association for the Advancement of Science
Beschreibungen/Notizen
Draft genome sequences have been determined for the soybean pathogen Phytophthora sojae and the sudden oak death pathogen Phytophthora ramorum. Oömycetes such as these Phytophthora species share the kingdom Stramenopila with photosynthetic algae such as diatoms, and the presence of many Phytophthora genes of probable phototroph origin supports a photosynthetic ancestry for the stramenopiles. Comparison of the two species' genomes reveals a rapid expansion and diversification of many protein families associated with plant infection such as hydrolases, ABC transporters, protein toxins, proteinase inhibitors, and, in particular, a superfamily of 700 proteins with similarity to known oömycete avirulence genes.