Mycological Progress

, Volume 18, Issue 1–2, pp 237–246 | Cite as

Phylogeny and taxonomy of Pseudoidium pedaliacearum

  • Hyeon-Dong Shin
  • Jamjan Meeboon
  • Susumu Takamatsu
  • Mahesh Kumar Adhikari
  • Uwe BraunEmail author
Original Article


Collections of Pseudoidium pedaliacearum on Sesamum indicum from Japan, Korea, and Nepal have been morphologically examined and subjected to molecular sequence analyses in order to clarify the taxonomic status and phylogenetic affinity of this powdery mildew. Pseudoidium pedaliacearum pertains to the Erysiphe aquilegiae clade, which encompasses several closely allied, morphologically similar powdery mildew species. The close affinity to Erysiphe sedi, Pseudoidium hortensiae (≡ Oidium hortensiae), P. neolycopersici (≡ Oidium neolycopersici), and some other taxa involved in the Erysiphe aquilegiae complex is discussed. The reexamination of P. pedaliacearum and the results of phylogenetic analyses [5′-end of the 28S rRNA gene (including the domains D1 and D2) and internal transcribed spacer (ITS) regions] led to a reassessment of this species and its reallocation to Erysiphe on the basis of the provisions of ICN Art. F.8.


Sesame Sesamum indicum Powdery mildew Erysiphales Pseudoidium neolycopersici Erysiphe pedaliacearum 


Funding information

This work was financially supported in part by a Grant-in-Aid for Scientific Research (No. 16K07613 and 16F16097) from the Japan Society for the Promotion of Science to ST; and the JSPS postdoctoral fellowship to JM. This work was also supported by a grant (No. K1705841) from Korea University to HDS.


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Copyright information

© German Mycological Society and Springer-Verlag GmbH Germany, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Division of Environmental Science and Ecological Engineering, College of Life Sciences and BiotechnologyKorea UniversitySeoulKorea
  2. 2.Graduate School of BioresourcesMie UniversityTsuJapan
  3. 3.KathmanduNepal
  4. 4.Institut für Biologie, Bereich Geobotanik und Botanischer GartenMartin-Luther-UniversitätHalle (Saale)Germany

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