Shackletonia cryodesertorum (Teloschistaceae, Ascomycota), a new species from the McMurdo Dry Valleys (Antarctica) with notes on the biogeography of the genus Shackletonia

Garrido‐Benavent, Isaac; Søchting, Ulrik; Murillo, Asunción de los Ríos; Pérez‐Ortega, Sergio

doi:10.1007/s11557-016-1204-x

Cited by 10 publications

(4 citation statements)

References 51 publications

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“…According to our phylogenetic analysis the genera Erichansenia and Shackletonia are positioned in the outermost position to the other genera of the Xanthorioideae, similarly as in phylogenetic trees published by , Søchting et al (2014b), andGarrido-Benavent et al (2016). The genus Shackletonia, a genus comprising lichen-forming, lichenicolous, and muscicolous species, is known from Antarctica and southern Patagonia .…”

Section: Resultssupporting

confidence: 71%

Three new genera of the Teloschistaceae proved by three gene phylogeny

Kondratyuk

Lőkös

Farkas

et al. 2020

Acta Botanica Hungarica

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Three new for science genera, i.e.: Erichansenia S. Y. Kondr., Kärnefelt et A. Thell for the ‘Caloplaca’ epithallina group of the subfamily Xanthorioideae, as well as Lendemeriella S. Y. Kondr. for the Caloplaca reptans group, and Pisutiella S. Y. Kondr., L. Lőkös et E. Farkas for the Caloplaca conversa group of the subfamily Caloplacoideae of the Teloschistaceae, are described on the basis of results of the three gene phylogeny of the Teloschistaceae based on nrITS, nrLSU and mtSSU sequences. Twenty-seven new combinations, i.e.: Erichansenia epithallina (for Caloplaca epithallina Lynge), Erichansenia cryodesertorum (for Shackletonia cryodesertorum Garrido-Ben., Søchting et Pérez-Ort.), Erichansenia sauronii (for Caloplaca sauronii Søchting et Øvstedal), Fauriea mandshuriaensis (for Caloplaca mandshuriaensis S. Y. Kondr., L. Lőkös et J.-S. Hur), Fauriea trassii (for Caloplaca trassii Galanina et S. Y. Kondr.), Lendemeriella borealis (for Lecanora pyracea f. borealis Vain.), Lendemeriella dakotensis (for Caloplaca dakotensis Wetmore), Lendemeriella exsecuta (for Lecanora exsecuta Nyl.), Lendemeriella lucifuga (for Caloplaca lucifuga G. Thor), Lendemeriella nivalis (for Zeora nivalis Körb.), Lendemeriella reptans (for Caloplaca reptans Lendemer et B. P. Hodk.), Lendemeriella sorocarpa (for Placodium sorocarpum Vain.), Lendemeriella tornoensis (for Caloplaca tornoensis H. Magn.), Pisutiella congrediens (for Lecanora congrediens Nyl.), Pisutiella conversa (for Callopisma conversum Kremp.), Pisutiella furax (for Caloplaca furax Egea et Llimona), Pisutiella grimmiae (for Lecanora grimmiae Nyl.), Pisutiella ivanpisutii (for Caloplaca ivanpisutii S. Y. Kondr., L. Lőkös et Hur), Pisutiella phaeothamnos (for Caloplaca phaeothamnos K. Kalb et J. Poelt), Pyrenodesmia aetnensis (for Caloplaca aetnensis B. de Lesd.), Pyrenodesmia albolutescens (for Lecanora albolutescens Nyl.), Pyrenodesmia aractina (for Parmelia aractina Fr.), Pyrenodesmia atroflava (for Lecidea atroflava Turner), Pyrenodesmia bicolor (for Caloplaca bicolor H. Magn.), Pyrenodesmia molariformis (for Caloplaca molariformis Frolov, Vondrák, Nadyeina et Khodos.), Pyrenodesmia neotaurica (for Caloplaca neotaurica Vondrák, Khodos., Arup et Søchting), Pyrenodesmia peliophylla (for Placodium peliophyllum Tuck.) are proposed based on results from a combined phylogenetic analysis using nrITS, nrLSU and mtSSU gene sequences.

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Section: Resultssupporting

confidence: 71%

Three new genera of the Teloschistaceae proved by three gene phylogeny

Kondratyuk

Lőkös

Farkas

et al. 2020

Acta Botanica Hungarica

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“…These observations support the premise of an ancient, pre‐Pleistocene origin of Antarctic lichens invoked by earlier lichenologists (Castello & Nimis, ; Lamb, ). In a previous work, Garrido‐Benavent, Søcthing, de los Ríos, and Pérez‐Ortega () proved a Palaeogene–Neogene diversification of the primarily Antarctic genus Shackletonia ( Teloschistaceae , Ascomycota). Evidence for in situ persistence of Antarctic terrestrial biota over long time‐scales has been also reported in metazoans, such as springtails and mites (Convey et al., ).…”

Section: Discussionmentioning

confidence: 93%

No need for stepping stones: Direct, joint dispersal of the lichen‐forming fungus Mastodia tessellata (Ascomycota) and its photobiont explains their bipolar distribution

Garrido‐Benavent

Rı́os

Fernández-Mendoza

et al. 2017

Journal of Biogeography

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Aim The hypotheses proposed to explain the high percentage of bipolar lichens in Antarctica have never been explicitly tested. We used the strictly bipolar, coastal lichenized fungus Mastodia tessellata (Verrucariaceae, Ascomycota) and its photobionts (Prasiola, Trebouxiophyceae, Chlorophyta) as model species to discern whether this extraordinary disjunction originated from vicariance or long‐distance dispersal. Location Coasts of Antarctica, Tierra del Fuego (Chile), Alaska (USA) and British Columbia (Canada). Methods Based on a comprehensive geographical (315 specimens and 16 populations from Antarctica, Tierra del Fuego and North America) and molecular sampling (three and four loci for the fungus and algae respectively), we implemented explicit Bayesian methods to compare alternative hypotheses of speciation and migration, and performed dating analyses for the fungal and algal partner, in order to infer the timing of the colonization events and the direction of gene flow among distant, disjunct areas. Results Mastodia tessellata comprises two fungal species which in turn associate with three photobiont lineages along the studied distribution range. Independent estimation of divergence ages for myco‐ and photobionts indicated a middle to latest Miocene species split in the Southern Hemisphere, and a late Miocene to Pleistocene acquisition of the bipolar distribution. Comparison of migration models and genetic diversity patterns suggested an austral origin for the bipolar species. Main conclusions The complex evolutionary history of Mastodia tessellata s.l. can be explained by a combination of vicariant and long‐distance dispersal mechanisms. We provide novel evidence of a pre‐Pleistocene long‐term evolution of lichens in Antarctica as well as for bipolar distributions shaped by Southern to Northern Hemisphere migratory routes without the need for stepping stones.

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“…putative endemic species) or conform to particular intraspecific lineages of cosmopolitan Galerina (non-endemic species). In lichenized fungi, Antarctic endemic species have been shown to have a relictual, pre-Pleistocene origin, whereas Antarctic populations of amphitropical lichens are generally much younger, dating back from the Pleistocene onwards (Fernández-Mendoza & Printzen 2013, Garrido-Benavent et al 2016, 2018, 2021). The temporal frame estimated with the time-calibrated Galerina phylogeny will further help us to discern whether their evolution in Antarctica conforms to either of these two scenarios.…”

Section: Introductionmentioning

confidence: 99%

Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene

Garrido-Benavent,

Blanchette,

De Los Ríos

2023

Antarctic Science

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Fungi are probably the most diverse group of eukaryotic organisms in the Antarctic continent and nearby archipelagos, and they dominate communities in either mild or harsh habitats. However, our knowledge of their global distribution ranges and the temporal origins of their Antarctic populations is rather limited or almost absent, especially for species that do not lichenize. We focused for the first time on elucidating the taxonomic identity and phylogenetic relationships of several Antarctic collections of the deadly fungal Basidiomycota genus Galerina. By using molecular sequence data from the universal fungal barcode and a dataset encompassing 178 specimens, the inferred phylogeny showed that the Antarctic specimens corresponded with the sub-cosmopolitan species Galerina marginata, Galerina badipes and Galerina fallax, and their most closely related intraspecific genetic lineages were from northern Europe and North America. We found that these species probably host Antarctic-endemic intraspecific lineages. Furthermore, our dating analyses indicated that their Antarctic populations originated in the Pleistocene, a temporal frame that agrees with that proposed for the Antarctic colonization of plants such as the grass Deschampsia antarctica, mosses and some amphitropical lichens. Altogether, these findings converge on the same temporal scenario for the assembly of the most conspicuous terrestrial Antarctic plant and fungal communities.

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Shackletonia cryodesertorum (Teloschistaceae, Ascomycota), a new species from the McMurdo Dry Valleys (Antarctica) with notes on the biogeography of the genus Shackletonia

Cited by 10 publications

References 51 publications

Three new genera of the Teloschistaceae proved by three gene phylogeny

Three new genera of the Teloschistaceae proved by three gene phylogeny

No need for stepping stones: Direct, joint dispersal of the lichen‐forming fungus Mastodia tessellata (Ascomycota) and its photobiont explains their bipolar distribution

Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene

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