European Journal of Plant Pathology

, Volume 109, Issue 8, pp 841–850 | Cite as

Eyespot of Cereals Revisited: ITS phylogeny Reveals New Species Relationships

  • Pedro W. Crous
  • J.Z. (Ewald) Groenewald
  • Walter Gams


Four species so far classified in Pseudocercosporella or Ramulispora (hyphomycetes) are associated with eyespot disease symptoms of cereals. Two of these have been linked to teleomorphs that were described in Tapesia. Sequence data derived from the Internal Transcribed Spacer region (ITS1, 5.8S and ITS2) of the rDNA operon showed, however, that the eyespot fungi associated with Tapesia are not congeneric with Ramulispora sorghi, the type of Ramulispora. The genus name Tapesia is now rejected in favour of the conserved name Mollisia, which appears to comprise heterogeneous fungi. Tapesia yallundae is not closely related to the type of Mollisia, M. cinerea, but clusters separately, being more closely allied to species with Cadophora anamorphs. A new holomorph genus, Oculimacula, is therefore proposed for teleomorphs of the eyespot fungi, while the anamorphs are accommodated in Helgardia gen. nov.

anamorph–teleomorph relationships eyespot disease Helgardia Oculimacula phylogeny Ramulispora systematics Tapesia 


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Copyright information

© Kluwer Academic Publishers 2003

Authors and Affiliations

  • Pedro W. Crous
    • 1
  • J.Z. (Ewald) Groenewald
    • 1
  • Walter Gams
    • 1
  1. 1.Centraalbureau Voor SchimmelculturesFungal Biodiversity CentreUtrechtThe Netherlands

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