Molecular data support placement of Cameronia in Ostropomycetidae (Lecanoromycetes, Ascomycota)

Lumbsch, H. Thorsten; Kantvilas, Gintaras; Parnmen, Sittiporn

doi:10.3897/mycokeys.5.4140

Cited by 6 publications

(4 citation statements)

References 55 publications

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“…In the recent phylogeny of the Lecanoromycetes ( Miadlikowska et al 2014 ) no member of the family was included. Several phylogenetic studies have found that Protothelenella forms a well-supported clade with Anzina ( Lumbsch et al 2007 , 2012 , Aptroot et al 2014 , Resl et al 2015 ), a result similar to what we found here.…”

Section: Discussionsupporting

confidence: 91%

Phylogenetic placement within Lecanoromycetes of lichenicolous fungi associated with Cladonia and some other genera

2017

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Though most of the lichenicolous fungi belong to the Ascomycetes, their phylogenetic placement based on molecular data is lacking for numerous species. In this study the phylogenetic placement of 19 species of lichenicolous fungi was determined using four loci (LSU rDNA, SSU rDNA, ITS rDNA and mtSSU). The phylogenetic analyses revealed that the studied lichenicolous fungi are widespread across the phylogeny of Lecanoromycetes. One species is placed in Acarosporales, Sarcogyne sphaerospora; five species in Dactylosporaceae, Dactylospora ahtii, D. deminuta, D. glaucoides, D. parasitica and Dactylospora sp.; four species belong to Lecanorales, Lichenosticta alcicorniaria, Epicladonia simplex, E. stenospora and Scutula epiblastematica. The genus Epicladonia is polyphyletic and the type E. sandstedei belongs to Leotiomycetes. Phaeopyxis punctum and Bachmanniomyces uncialicola form a well supported clade in the Ostropomycetidae. Epigloea soleiformis is related to Arthrorhaphis and Anzina. Four species are placed in Ostropales, Corticifraga peltigerae, Cryptodiscus epicladonia, C. galaninae and C. cladoniicola comb. nov. (= Lettauia cladoniicola). Three new species are described, Dactylospora ahtii, Cryptodiscus epicladonia and C. galaninae.

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Section: Discussionsupporting

confidence: 91%

Phylogenetic placement within Lecanoromycetes of lichenicolous fungi associated with Cladonia and some other genera

2017

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“…Curiously neither genus was included in a later overview of secondary delichenization in Ostropales (Baloch et al 2010). Lumbsch et al (2012) recovered both on a supported branch in a two locus (mtSSU, nuLSU) phylogeny of Ostropomycetidae. Our results appear to lend strong support to the monophyly of Anzina and Protothelenella and further suggest that the synonymization of Thrombiaceae and Protothelenellaceae by Schmitt et al (2005) should be revisited in future sampling at the base of the Ostropales.…”

Section: Discussionmentioning

confidence: 96%

“…Another group of interest is the recently described genus Cameronia , the two species of which have muriform ascospores (Kantvilas 2012). We examined Cameronia ITS and a short fragment of mtSSU from a previous study (Lumbsch et al 2012) but ultimately excluded it from our final analysis because it was below our data inclusion threshold. However, our initial results suggest Cameronia is related to Hymeneliaceae (data not shown).…”

Section: Discussionmentioning

confidence: 99%

“…Developing them as a model system however requires resolving evolutionary relationships that until now have been deeply entangled with other clades of Ostropomycetidae. Since its recognition as a subclass by Reeb et al (2004), nearly all phylogenies of Ostropomycetidae have recovered a pattern of resolved terminal clades and an unresolved backbone (Lumbsch et al 2005: mtSSU, nuLSU; Schmitt et al 2005: mtSSU, nuLSU; Wedin et al 2005: mtSSU, nuLSU; Lumbsch et al 2007c: mtSSU, nuLSU; Schmitt et al 2010: nuLSU, mtSSU, RPB1, MCM7; Lumbsch et al 2012: mtSSU, nuLSU; Bendiksby and Timdal 2013: ITS, mtSSU, nuLSU; Otálora and Wedin 2013: mtSSU, RPB1, MCM7; Prieto and Wedin 2013: nuSSU, nuLSU, 5.8S, mtSSU, RPB1, MCM7 and Prieto et al 2013, same loci). The pattern of persistent low backbone support is perhaps best visualized in the large-scale phylogeny of the group presented by Miadłikowska et al (2014, Fig.…”

Section: Introductionmentioning

confidence: 99%

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Diagnostics for a troubled backbone: testing topological hypotheses of trapelioid lichenized fungi in a large-scale phylogeny of Ostropomycetidae (Lecanoromycetes)

et al. 2015

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Trapelioid fungi constitute a widespread group of mostly crust-forming lichen mycobionts that are key to understanding the early evolutionary splits in the Ostropomycetidae, the second-most species-rich subclass of lichenized Ascomycota. The uncertain phylogenetic resolution of the approximately 170 species referred to this group contributes to a poorly resolved backbone for the entire subclass. Based on a data set including 657 newly generated sequences from four ribosomal and four protein-coding gene loci, we tested a series of a priori and new evolutionary hypotheses regarding the relationships of trapelioid clades within Ostropomycetidae. We found strong support for a monophyletic group of nine core trapelioid genera but no statistical support to reject the long-standing hypothesis that trapelioid genera are sister to Baeomycetaceae or Hymeneliaceae. However, we can reject a sister group relationship to Ostropales with high confidence. Our data also shed light on several long-standing questions, recovering Anamylopsoraceae nested within Baeomycetaceae, elucidating two major monophyletic groups within trapelioids (recognized here as Trapeliaceae and Xylographaceae), and rejecting the monophyly of the genus Rimularia. We transfer eleven species of the latter genus to Lambiella and describe the genus Parainoa to accommodate a previously misunderstood species of Trapeliopsis. Past phylogenetic studies in Ostropomycetidae have invoked “divergence order” for drawing taxonomic conclusions on higher level taxa. Our data show that if backbone support is lacking, contrasting solutions may be recovered with different or added data. We accordingly urge caution in concluding evolutionary relationships from unresolved phylogenies.

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Notes for genera: Ascomycota

et al. 2017

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Molecular data support placement of Cameronia in Ostropomycetidae (Lecanoromycetes, Ascomycota)

Cited by 6 publications

References 55 publications

Phylogenetic placement within Lecanoromycetes of lichenicolous fungi associated with Cladonia and some other genera

Phylogenetic placement within Lecanoromycetes of lichenicolous fungi associated with Cladonia and some other genera

Diagnostics for a troubled backbone: testing topological hypotheses of trapelioid lichenized fungi in a large-scale phylogeny of Ostropomycetidae (Lecanoromycetes)

Notes for genera: Ascomycota

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