Phylogenetics of Helotiales and Rhytismatales based on partial small subunit nuclear ribosomal DNA sequences

Gernandt, David S.; Platt, Jamie L.; Stone, Jeffrey K.; Spatafora, Joseph W.; Holst‐Jensen, Arne; Hamelin, Richard; Kohn, Linda M.

doi:10.1080/00275514.2001.12063226

Cited by 36 publications

(35 citation statements)

References 67 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…(Rhytismatales) were selected as outgroups for phylogenetic analyses except for the ITS dataset. These genera are considered close relatives of Cudonia and Spathularia by previous studies [27], [31], [52], and our preliminary analysis, including diverse Rhytismatales and Helotiales, verified that these taxa are appropriate outgroups.…”

Section: Methodssupporting

confidence: 80%

“…Most studies that have included sequences of Cudonia and Spathularia have been focused on family-level, order-level, or class-level phylogenetic relationships, and thus have incorporated only a few species from these genera. Phylogenetic analyses based on the 18S nuc-SSU nrDNA [28]-[31] showed that C. circinans and S. flavida formed a monophyletic clade. This relationship was later confirmed based on the ITS and 28S nrLSU [9], [17], [32] and other genes [33]-[35].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Multigene Molecular Phylogeny and Biogeographic Diversification of the Earth Tongue Fungi in the Genera Cudonia and Spathularia (Rhytismatales, Ascomycota)

Yang

Pfister

et al. 2014

PLoS ONE

View full text Add to dashboard Cite

The family Cudoniaceae (Rhytismatales, Ascomycota) was erected to accommodate the “earth tongue fungi” in the genera Cudonia and Spathularia. There have been no recent taxonomic studies of these genera, and the evolutionary relationships within and among these fungi are largely unknown. Here we explore the molecular phylogenetic relationships within Cudonia and Spathularia using maximum likelihood and Bayesian inference analyses based on 111 collections from across the Northern Hemisphere. Phylogenies based on the combined data from ITS, nrLSU, rpb2 and tef-1α sequences support the monophyly of three main clades, the /flavida, /velutipes, and /cudonia clades. The genus Cudonia and the family Cudoniaceae are supported as monophyletic groups, while the genus Spathularia is not monophyletic. Although Cudoniaceae is monophyletic, our analyses agree with previous studies that this family is nested within the Rhytismataceae. Our phylogenetic analyses circumscribes 32 species-level clades, including the putative recognition of 23 undescribed phylogenetic species. Our molecular phylogeny also revealed an unexpectedly high species diversity of Cudonia and Spathularia in eastern Asia, with 16 (out of 21) species-level clades of Cudonia and 8 (out of 11) species-level clades of Spathularia. We estimate that the divergence time of the Cudoniaceae was in the Paleogene approximately 28 Million years ago (Mya) and that the ancestral area for this group of fungi was in Eastern Asia based on the current data. We hypothesize that the large-scale geological and climatic events in Oligocene (e.g. the global cooling and the uplift of the Tibetan plateau) may have triggered evolutionary radiations in this group of fungi in East Asia. This work provides a foundation for future studies on the phylogeny, diversity, and evolution of Cudonia and Spathularia and highlights the need for more molecular studies on collections from Europe and North America.

show abstract

Section: Methodssupporting

confidence: 80%

Section: Introductionmentioning

confidence: 99%

Multigene Molecular Phylogeny and Biogeographic Diversification of the Earth Tongue Fungi in the Genera Cudonia and Spathularia (Rhytismatales, Ascomycota)

Yang

Pfister

et al. 2014

PLoS ONE

View full text Add to dashboard Cite

show abstract

“…Recognizing the special features of this group, he removed the genera Orbilia and Hyalina from the core group of inoperculate discomycetes. The placement of the family outside the Leotiomycetes lineage initially began to be questioned by Pfister (1997), and subsequent work has confirmed the placement as an early diverging lineage within the Pezizomycotina (Gernandt et al 2001;). Nannfeldt's circumscription of the family was used with few changes until the 1990s.…”

Section: History Of Classification and Current Hypothesesmentioning

confidence: 99%

“…Given the dramatic differences in morphology, connections between powdery mildew fungi and other Leotiomycetes are difficult to interpret directly at the morphological level, and the inclusion of Erysiphales in Leotiomycetes has been only inferred with molecular phylogeny (LoBuglio and Pfister 2010; Wang et al 2006a, b). Similar to the case of Erysiphales, the placement of Thelebolales in Leotiomycetes is solely suggested with molecular characters from one or two Thelebolus species (Gernandt et al 2001;Landvik et al 1998;LoBuglio and Pfister 2010;Peterson and Pfister 2010). Similar to the case of Erysiphales, the placement of Thelebolales in Leotiomycetes is solely suggested with molecular characters from one or two Thelebolus species (Gernandt et al 2001;Landvik et al 1998;LoBuglio and Pfister 2010;Peterson and Pfister 2010).…”

Section: Current Classification Of Leotiomycetesmentioning

confidence: 99%

“…Members of two classes, Orbiliomycetes and Pezizomycetes, of Pezizomycotina are consistently shown in molecular phylogenetic studies to diverge at the base of the Pezizomycotina phylogeny (Gernandt et al 2001;). give ultrastructural data on the septal structure, ascus wall construction, and nuclear division that suggest the Orbiliomycetes represent the earliest diverging lineage of the Pezizomycotina.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation