@ARTICLE{TreeBASE2Ref17762, author = {Susumu Takamatsu and Sanae Matsuda and Seiko Niinomi and Mar?a Havrylenko}, title = {Molecular phylogeny supports Northern Hemisphere origin of Golovinomyces (Ascomycota: Erysiphales)}, year = {2006}, keywords = {}, doi = {}, url = {}, pmid = {}, journal = {Mycological Research}, volume = {110}, number = {}, pages = {}, abstract = {Golovinomyces is a strictly herb-parasitic genus in the Erysiphaceae. Host-parasite co-speciation was reported recently between the genus Golovinomyces and Asteraceae from molecular phylogenetic analyses. The Asteraceae originated in South America and latterly expanded their geographic distribution into the Northern Hemisphere. If the co-speciation between Golovinomyces and Asteraceae originated in South America, the geographic origin of Golovinomyces could be assumed to be South America. To address this question, Golovinomyces species from hosts of the tribe Mutisieae, an asteraceous tribe endemic to South America, were collected and sequenced. Results indicate that Oidium mutisiae and Golovinomyces leuceriae isolated from the Mutisieae do not belong at the base of the Golovinomyces tree. Instead, they are situated separately within two different clades of Golovinomyces isolates from the Northern Hemisphere. Therefore, the tribe Mutisieae is not the most early host of Golovinomyces. Present results suggest that Golovinomyces originated in the Northern Hemisphere, and not in South America. The new species Oidium reginae for the previous O. mutisiae on Mutisia decurrens is proposed.} }

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