Phylogenetic and morphotaxonomic revision of Ramichloridium and allied genera

M. Arzanlou, J. Z. Groenewald, W. Gams, U. Braun, Hyeon-Dong Shin, Pedro W. Crous

Research output: Contribution to journalArticle

159 Citations (Scopus)

Abstract

The phylogeny of the genera Periconiella, Ramichloridium, Rhinocladiella and Veronaea was explored by means of partial sequences of the 28S (LSU) rRNA gene and the ITS region (ITS1, 5.8S rDNA and ITS2). Based on the LSU sequence data, ramichloridium-like species segregate into eight distinct clusters. These include the Capnodiales (Mycosphaerellaceae and Teratosphaeriaceae), the Chaetothyriales (Herpotrichiellaceae), the Pleosporales, and five ascomycete clades with uncertain affinities. The type species of Ramichloridium, R. apiculatum, together with R. musae, R. biverticillatum, R. cerophilum, R. verrucosum, R. pini, and three new species isolated from Strelitzia, Musa and forest soil, respectively, reside in the Capnodiales clade. The human-pathogenic species R. mackenziei and R. basitonum, together with R. fasciculatum and R. anceps, cluster with Rhinocladiella (type species: Rh. atrovirens, Herpotrichiellaceae, Chaetothyriales), and are allocated to this genus. Veronaea botryosa, the type species of the genus veronaea, also resides in the Chaetothyriales clade, whereas Veronaea simplex clusters as a sister taxon to the venturiaceae (Pleosporales), and is placed in a new genus, Veronaeopsis. Ramichloridium obovoideum clusters with Carpoligna pleurothecii (anamorph: Pleurothecium sp., Chaetosphaeriales), and a new combination is proposed in Pleurothecium. Other ramichloridium-like clades include R. subulatum and R. epichloës (incertae sedis, Sordariomycetes), for which a new genus, Radulidium is erected. Ramichloridium schulzeri and its varieties are placed in a new genus, Myrmecridium (incertae sedis, Sordariomycetes). The genus Pseudovirgaria (incertae sedis) is introduced to accommodate ramichloridium-like isolates occurring on various species of rust fungi. A veronaea-like isolate from Bertia moriformis with phylogenetic affinity to the Annulatascaceae (Sordariomycetidae) is placed in a new genus, Rhodoveronaea. Besides Ramichloridium, Periconiella is also polyphyletic. Thysanorea is introduced to accommodate Periconiella papuana (Herpotrichiellaceae), which is unrelated to the type species, P. velutina (Mycosphaerellaceae).

Original languageEnglish
Pages (from-to)57-93
Number of pages37
JournalStudies in Mycology
Volume58
DOIs
Publication statusPublished - 2007 Oct 19

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Ramichloridium
Musa
Strelitziaceae
Periconiella
Herpotrichiellaceae
Ascomycota
Chaetothyriales
phylogeny
Phylogeny
Ribosomal DNA
rRNA Genes
new genus
Mycosphaerellaceae
Capnodiales
Fungi
Soil
Sordariomycetes
Pleosporales
Bertia
Chaetosphaeriales

Keywords

  • Capnodiales
  • Chaetothyriales
  • Mycosphaerella
  • Periconiella
  • Phylogeny
  • Rhinocladiella
  • Veronaea

ASJC Scopus subject areas

  • Agricultural and Biological Sciences (miscellaneous)
  • Plant Science

Cite this

Phylogenetic and morphotaxonomic revision of Ramichloridium and allied genera. / Arzanlou, M.; Groenewald, J. Z.; Gams, W.; Braun, U.; Shin, Hyeon-Dong; Crous, Pedro W.

In: Studies in Mycology, Vol. 58, 19.10.2007, p. 57-93.

Research output: Contribution to journalArticle

Arzanlou, M. ; Groenewald, J. Z. ; Gams, W. ; Braun, U. ; Shin, Hyeon-Dong ; Crous, Pedro W. / Phylogenetic and morphotaxonomic revision of Ramichloridium and allied genera. In: Studies in Mycology. 2007 ; Vol. 58. pp. 57-93.
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