The cetrarioid core group revisited (<i>Lecanorales: Parmeliaceae</i>)

Nelsen, Matthew P.; Chavez, Natali; Sackett-Hermann, Erin; Thell, Arne; Randlane, Tiina; Divakar, Pradeep K.; Rico, Vı́ctor J.; Lumbsch, H. Thorsten

doi:10.1017/s0024282911000508

Cited by 42 publications

(65 citation statements)

References 52 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The cetrarioid core group was reconstructed as monophyletic (but not strongly supported, if Melanelia is included) and in general agreement with Thell et al (2009) and Nelsen et al (2011). Our study confirms the monophyly of the hypogymnioid group as previously circumscribed (Crespo et al, 2007), possibly with the genus Evernia resulting from the first phylogenetic split in this clade.…”

Section: Resultssupporting

confidence: 61%

A multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families

Miądlikowska

Kauff

Högnabba

et al. 2014

Molecular Phylogenetics and Evolution

Self Cite

253

230

View full text Add to dashboard Cite

The Lecanoromycetes is the largest class of lichenized Fungi, and one of the most species-rich classes in the kingdom. Here we provide a multigene phylogenetic synthesis (using three ribosomal RNA-coding and two protein-coding genes) of the Lecanoromycetes based on 642 newly generated and 3329 publicly available sequences representing 1139 taxa, 317 genera, 66 families, 17 orders and five subclasses (four currently recognized: Acarosporomycetidae, Lecanoromycetidae, Ostropomycetidae, Umbilicariomycetidae; and one provisionarily recognized, ‘Candelariomycetidae’). Maximum likelihood phylogenetic analyses on four multigene datasets assembled using a cumulative supermatrix approach with a progressively higher number of species and missing data (5-gene, 5+4-gene, 5+4+3-gene and 5+4+3+2-gene datasets) show that the current classification includes non-monophyletic taxa at various ranks, which need to be recircumscribed and require revisionary treatments based on denser taxon sampling and more loci. Two newly circumscribed orders (Arctomiales and Hymeneliales in the Ostropomycetidae) and three families (Ramboldiaceae and Psilolechiaceae in the Lecanorales, and Strangosporaceae in the Lecanoromycetes inc. sed.) are introduced. The potential resurrection of the families Eigleraceae and Lopadiaceae is considered here to alleviate phylogenetic and classification disparities. An overview of the photobionts associated with the main fungal lineages in the Lecanoromycetes based on available published records is provided. A revised schematic classification at the family level in the phylogenetic context of widely accepted and newly revealed relationships across Lecanoromycetes is included. The cumulative addition of taxa with an increasing amount of missing data (i.e., a cumulative supermatrix approach, starting with taxa for which sequences were available for all five targeted genes and ending with the addition of taxa for which only two genes have been sequenced) revealed relatively stable relationships for many families and orders. However, the increasing number of taxa without the addition of more loci also resulted in an expected substantial loss of phylogenetic resolving power and support (especially for deep phylogenetic relationships), potentially including the misplacements of several taxa. Future phylogenetic analyses should include additional single copy protein-coding markers in order to improve the tree of the Lecanoromycetes. As part of this study, a new module (“Hypha”) of the freely available Mesquite software was developed to compare and display the internodal support values derived from this cumulative supermatrix approach.

show abstract

Section: Resultssupporting

confidence: 61%

A multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families

Miądlikowska

Kauff

Högnabba

et al. 2014

Molecular Phylogenetics and Evolution

Self Cite

253

230

View full text Add to dashboard Cite

show abstract

“…Ach. In the most recent molecular studies of cetrarioid lichens (Thell et al 2009;Nelsen et al 2011) based on more markers, C. aculeata and C. muricata were always treated as separate species. At least two additional close relatives of C. aculeata have so far been described, the corticolous C. crespoae (Barreno & Vázquez) Kärnefelt from western Spain and C. steppae (Savicz) Kärnefelt from Ukraine containing norstictic acid (Kärnefelt et al 1993).…”

Section: Delimiting Species Within the Cetraria Aculeata Groupmentioning

confidence: 99%

Biogeography and ecology of Cetraria aculeata, a widely distributed lichen with a bipolar distribution

Printzen¹,

Domaschke²,

Fernández-Mendoza³

et al. 2013

View full text Add to dashboard Cite

Citation: Printzen C, Domaschke S, Fernández-Mendoza F, Pérez-Ortega S (2013) Biogeography and ecology of Cetraria aculeata, a widely distributed lichen with a bipolar distribution. In: Boonpragob K, Crittenden P, Lumbsch HT (Eds) Lichens: from genome to ecosystems in a changing world. MycoKeys 6: 33-53. doi: 10.3897/mycokeys.6.3185 AbstractEcological and historical biogeography of lichens have rarely been studied in a concerted effort, but both aspects have to be taken into consideration when explaining the distributional patterns of species. This review summarizes, partly preliminary, results from a series of studies on phylogeography, ecophysiology and symbiotic interactions of the lichen Cetraria aculeata. This species is not only widespread but also occupies a very wide ecological niche. Evidence suggests that Cetraria aculeata has evolved and diversified in the Northern Hemisphere and colonised the Southern Hemisphere during the Pleistocene. Genetic isolation of populations indicates the absence of ongoing long range dispersal and genetic exchange between geographically isolated populations. We observe a hitherto unrecognized genetic diversity that may indicate ecotypic differentiation and speciation processes. Mediterranean and Polar populations differ not only genetically, but also in ecophysiological properties. Ongoing common garden experiments will have to show whether genetically fixed adaptation or acclimation is responsible for these differences. The genetic structure of the photobiont is best explained by climatic differences between localities, but codispersal with the mycobiont plays an important role as well. Taken together, these results indicate that a photobiont switch in the past enabled C. aculeata to widen its ecological niche, with subsequent genetic isolation of populations. Photobiont switches may play a crucial role in speciation processes of lichens. A combination of ecophysiological and phylogeographic studies with experimental approaches is necessary to better understand the reaction of lichens to changing environmental conditions.

show abstract

“…1B) had previously been considered a form of Cetraria crispa (Ach.) Subsequently, Thell et al (2009) demonstrated a distant relationship between these two taxa based on molecular sequence data, and both Thell et al (2009) andNelsen et al (2011a) have instead suggested a close relationship between M. inermis (as T. inermis) and M. richardsonii. Krog (1973) elevated it to the species level as Cetraria inermis (Nyl.)…”

Section: Introductionmentioning

confidence: 99%

A reappraisal of Masonhalea (Parmeliaceae, Lecanorales) based on molecular and morphological data

et al. 2013

Self Cite

View full text Add to dashboard Cite

Previous studies have identified a close relationship between the monospecific Masonhalea richardsonii and Tuckermannopsis inermis. However, formal taxonomic changes were postponed until existing sequence data could be confirmed. Here we validate these data and discuss the transfer of T. inermis to Masonhalea (made by Lumbsch et al. in Thell & Moberg 2011), consider the morphological, anatomical and biogeographic similarities and differences between these two taxa. The two Masonhalea species both produce lateral apothecia, marginal pycnidia, a layer of cortical tissue beneath the pycnidial wall and bacillariform conidia.

show abstract

The cetrarioid core group revisited (Lecanorales: Parmeliaceae)

Cited by 42 publications

References 52 publications

A multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families

A multigene phylogenetic synthesis for the class Lecanoromycetes (Ascomycota): 1307 fungi representing 1139 infrageneric taxa, 317 genera and 66 families

Biogeography and ecology of Cetraria aculeata, a widely distributed lichen with a bipolar distribution

A reappraisal of Masonhalea (Parmeliaceae, Lecanorales) based on molecular and morphological data

Contact Info

Product

Resources

About