title: Multigene phylogeny, taxonomy and reclassification ofHyaloperonosporaon Cardamine.
abstract: Based on sequence data fromcox1, cox2, ITS and LSU rDNA, it is shown that at least six species ofHyaloperonosporaoccur on the genusCardamine, most of which were commonly classified underPeronospora dentariae. Based on sequences from their type hosts,Peronospora dentariae,Peronospora cardamines-laciniatae,Peronospora dentariae-macrophyllae,Peronospora malyiandPeronospora nasturtii-aquaticiare combined intoHyaloperonospora, and their circumscription is clarified.Hyaloperonospora cardamines-enneaphyllosis described as a new species fromCardamine enneaphyllos. The host range ofHyaloperonospora nasturtii-aquatici, described fromNasturtium officinale, is shown to extend to variousCardaminespecies. Host range of species is shown to be highly diagnostic, with no overlap in their host range, but species commonly cannot be distinguished by morphology alone. Bothcox1andcox2are confirmed to be good markers for phylogenetic species delimitation of closely relatedHyaloperonosporaspecies onCardamine.
authors.affiliation: Department of Systematic and Evolutionary Botany, Faculty Center Biodiversity, University of Vienna, Rennweg 14, 1030 Wien, Austria. hermann.voglmayr@univie.ac.at.
authors.forename: Hermann
authors.initials: H
authors.lastname: Voglmayr
authors.affiliation: Biodiversity and Climate Research Centre (BiK-F), Senckenberganlage 25, D-60325 Frankfurt (Main), Germany; Department of Biological Sciences, Institute of Ecology, Evolution and Diversity, Goethe University, Siesmayerstr. 70, D-60323 Frankfurt am Main, Germany.
authors.forename: Young-Joon
authors.initials: YJ
authors.lastname: Choi
authors.affiliation: Division of Environmental Science and Ecological Engineering, Korea University, Seoul 136-701, Korea.
authors.forename: Hyeon-Dong
authors.initials: HD
authors.lastname: Shin
keywords: Dentaria; Host range; Obligate parasites; Peronospora; Peronosporaceae