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Published January 1, 2024 | Version v1
Journal article Open

Contributions to the knowledge of the phylogeny and taxonomy of the Erysiphaceae (powdery mildews) - part 2

Creators

  • 1. North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27606 USA
  • 2. Martin Luther Univ Halle Wittenberg, Inst Biol Bereich Geobot & Bot Garten, Herbarium, Kirchtor 3, D-06099 Halle, Germany
  • 3. Julius Kuhn Inst, Inst Pflanzenschutz Gartenbau & urbanem Grun, Bundesforsch inst Kulturpflanzen, Messeweg 11-12, D-38104 Braunschweig, Germany
  • 4. Kirsehir Ahi Evran Univ, Grad Sch Nat & Appl Sci, Konya, Turkiye
  • 5. Kirsehir Ahi Evran Univ, Fac Agr, Dept Landscape Architects, Kirsehir, Turkiye
  • 6. Kirsehir Ahi Evran Univ, Fac Agr, Dept Agr Biotechnol, Duzce, Turkiye
  • 7. Slovak Acad Sci, Dept Plant Pathol & Mycol, Inst Forest Ecol, Akak 2, Nitra 94901, Slovakia
  • 8. Natl Agr & Food Ctr, Res Inst Plant Prod, Bratislavska 122, Piestany 92168, Slovakia
  • 9. Univ Michoacana, Inst Invest Agr & Forestales, Km 9-5 Carretera Morelia Zinapecuaro, Tarimbaro 58880, Michoacan, Mexico
  • 10. Mie Univ, Grad Sch Bioresources, 1577 Kurima Machiya, Tsu, Mie 5148507, Japan
  • 11. Agr Res Educ & Extens Org AREEO, Iranian Res Inst Plant Protect, Dept Bot, Tehran, Iran
  • 12. North Carolina State Univ, Dept Entomol & Plant Pathol, Raleigh, NC 27695 USA
  • 13. Alexandru Ioan Cuza Univ, Fac Phys, Bd Carol 1 11, Iasi 700506, Romania
  • 14. Univ Potsdam, Inst Biochem & Biol, Maulbeerallee 1, D-14469 Potsdam, Germany
  • 15. Pfalzmuseum Nat Kunde POLLICHIA Museum, Hermann Schafer Str 17, D-67098 Bad Durkheim, Germany
  • 16. Harvard Univ, Harvard Univ Herbaria, Dept Organism & Evolutionary Biol, 22 Divin Ave, Cambridge, MA 02138 USA

Description

The phylogeny and taxonomy of several powdery mildews (Erysiphaceae) have been examined. Sequences of the rDNA ITS region have been retrieved from types and additional specimens, collected in Germany, Iran, Turkey, Uzbekistan, and several other countries. Erysiphe cruciferarum s. lat. has been revised and split into E. cruciferarum s. str. on Alyssum and Berteroa (tribe Alysseae), E. alliariicola sp. nov. on Alliaria petiolata, and E. radulescui, a plurivorous species that occurs on a wide range of cruciferous hosts as well as on Cleome spp. and Papaver spp. The revision of this complex is supported by phylogenetic multilocus analyses of rDNA (ITS, 28S and IGS) and protein coding genes ( CAM, GAPDH, GS, RPB2, and TUB ). The Erysiphe euphorbiicola complex is phylogenetically examined. Oidium poinsettiae is very closely allied to Erysiphe euphorbiicola, but final conclusions on the taxonomy of this species and its relation to E. euphorbiicola are not yet possible and require additional sequences and multilocus examinations. E. euphorbiae-cotinifoliae sp. nov. is described on Euphorbia cotinifolia from Mexico. Podosphaera aucupariae is epitypified, and the new variety P. aucupariae var. arcuatispora on Sorbus aucuparia in Turkey is described. Furthermore, the phylogeny and taxonomy of Erysiphe pachypodii, Euoidium parthenii-integrifolii, Golovinomyces clematidis, G. hyoscyami, G. prenanthis, G. senecionis on Ligularia persica and Senecio spp., Fibroidium pelargonii, and Podosphaera clandestina var. cydoniae have been examined. Podosphaera pannosa has been reported on Mandevilla splendens (Apocynaceae). - 2 new species, 5 epitypifications, 1 lectotypification, 4 new synonyms.

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