@ARTICLE{TreeBASE2Ref22531, author = {William Quaedvlieg and Gerard J.M. Verkley and H. D. Shin and Robert W. Barreto and Acelino C Alfenas and W J Swart and Johannes (Ewald) Zacharias Groenewald and Pedro W. Crous}, title = {Sizing up Septoria}, year = {2013}, keywords = {}, doi = {10.3114/sim0017}, url = {http://studiesinmycology.org/}, pmid = {}, journal = {Studies in Mycology}, volume = {75}, number = {}, pages = {307--390}, abstract = {Septoria represents a genus of plant pathogenic fungi with a wide geographic distribution, commonly associated with leaf spots and stem cankers of a broad range of plant hosts. A major aim of this study was to resolve the phylogenetic generic limits of Septoria, Stagonospora, and other related genera such as Sphaerulina, Phaeosphaeria and Phaeoseptoria using sequences of the the partial 28S nuclear ribosomal RNA and RPB2 genes of a large set of isolates. Based on these results Septoria is shown to be a distinct genus in the Mycosphaerellaceae, which has mycosphaerella-like sexual morphs. Several septoria-like species are now accommodated in Sphaerulina, a genus previously linked to this complex. Phaeosphaeria (based on P. oryzae) is shown to be congeneric with Phaeoseptoria (based on P. papayae), which is reduced to synonymy under the former. Depazea nodorum (causal agent of nodorum blotch of cereals) and Septoria avenae (causal agent of avenae blotch of barley and rye) are placed in a new genus, Parastagonospora, which is shown to be distinct from Stagonospora (based on S. paludosa) and Phaeosphaeria. Partial nucleotide sequence data for fve gene loci, ITS, LSU, EF-1α, RPB2 and Btub were generated for all of these isolates. A total of 47 clades or genera were resolved, leading to the introduction of 14 new genera, 36 new species, and 19 new combinations.} }

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