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Paramicrosphaeropsis L.W.Hou, L.Cai & Crous is a monophyletic taxon in Didymellaceae and includes two species to date. In a survey on microsphaeropsis-like fungi associated with Zagrosian forest trees in Iran, four new Paramicrosphaeropsis species were identified and described including P. amygdalus M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. from Amygdalus scoparia Spach., P. pistacicola M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. from Pistacia spp., P. salandica M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. from Crataegus sp., Nerium oleander L., Quercus brantii Lindl. and Ziziphus sp., and P. zagrosensis M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. from Crataegus sp. and Quercus brantii. Phylogenetic analyses based on a combination of four genomic regions, including the partial nuclear 28S ribosomal DNA (LSU), internal transcribed spacer regions 1 and 2 including the intervening 5.8S nuclear ribosomal DNA (ITS), partial β-tubulin (tub2) and RNA polymerase II second largest subunit (rpb2), are provided to clarify the phylogenetic affinities of the new species and other taxa within the Microsphaeropsis complex. In addition, a new genus Heteromicrosphaeropsis M.Mehrabi-Koushki, K.D.Hyde & Jayaward., gen. nov. and five new combinations are introduced. The new combinations are Heteromicrosphaeropsis ononidicola (Thambug., Camporesi & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov., Microsphaeropsis cytisi (W.J.Li & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov., M. cytisicola (Wanas., Camporesi, E.B.G.Jones & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov., M. cytisinus (Tennakoon, Camporesi & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov. and M. minima (W.J.Li & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov.
Révision du complexe Microsphaeropsis avec l'ajout de quatre nouvelles espèces de Paramicrosphaeropsis L.W.Hou, L.Cai & Crous provenant d'arbres de la forêt zagrosienne en Iran.
Paramicrosphaeropsis L.W.Hou, L.Cai & Crous est un taxon monophylétique de la famille des Didymellaceae et comprend, à ce jour, deux espèces. Lors d'une étude sur les champignons de type Microsphaeropsis associés aux arbres de la forêt zagrosienne en Iran, quatre nouvelles espèces de Paramicrosphaeropsis ont été identifiées et décrites, dont P. amygdalus M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. d'Amygdalus scoparia Spach., P. pistacicola M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. de Pistacia spp., P. salandica M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. de Crataegus sp., Nerium oleander L., Quercus brantii Lindl. et Ziziphus sp., et P. zagrosensis M.Mehrabi-Koushki, S.Artand, K.D.Hyde & Jayaward., sp. nov. de Crataegus sp. et Quercus brantii. Des analyses phylogénétiques basées sur une combinaison de quatre régions génomiques, incluant l'ADN ribosomal 28S nucléaire partiel (LSU), les régions intercalaires transcrites internes 1 et 2 comprenant l'ADN ribosomal nucléaire 5.8S intermédiaire (ITS), la β-tubuline partielle (tub2) et la deuxième plus grande sous-unité de l'ARN polymérase II (rpb2), sont fournies pour clarifier les affinités entre nouvelles espèces et autres taxons du complexe Microsphaeropsis. En outre, un nouveau genre Heteromicrosphaeropsis M.Mehrabi-Koushki, K.D.Hyde & Jayaward., gen. nov. et cinq nouvelles combinaisons sont introduits. Les nouvelles combinaisons sont Heteromicrosphaeropsis ononidicola (Thambug., Camporesi & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov., Microsphaeropsis cytisi (W.J.Li & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov., M. cytisicola (Wanas., Camporesi, E.B.G.Jones & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov., M. cytisinus (Tennakoon, Camporesi & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov. et M. minima (W.J.Li & K.D.Hyde) M.Mehrabi-Koushki, K.D.Hyde & Jayaward., comb. nov.
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