Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene
Abstract 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 popula...
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Online Access: | http://dx.doi.org/10.1017/s0954102023000196 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000196 |
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crcambridgeupr:10.1017/s0954102023000196 2024-09-15T17:44:34+00:00 Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene Garrido-Benavent, Isaac Blanchette, Robert A. De Los Ríos, Asunción Ministerio de Ciencia e Innovación Ministerio de Ciencia e Innovación 2023 http://dx.doi.org/10.1017/s0954102023000196 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000196 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Antarctic Science volume 35, issue 5, page 345-358 ISSN 0954-1020 1365-2079 journal-article 2023 crcambridgeupr https://doi.org/10.1017/s0954102023000196 2024-06-26T04:04:14Z Abstract 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. Article in Journal/Newspaper Antarc* Antarctic Antarctic Science Antarctica Cambridge University Press Antarctic Science 35 5 345 358 |
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Cambridge University Press |
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English |
description |
Abstract 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. |
author2 |
Ministerio de Ciencia e Innovación Ministerio de Ciencia e Innovación |
format |
Article in Journal/Newspaper |
author |
Garrido-Benavent, Isaac Blanchette, Robert A. De Los Ríos, Asunción |
spellingShingle |
Garrido-Benavent, Isaac Blanchette, Robert A. De Los Ríos, Asunción Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene |
author_facet |
Garrido-Benavent, Isaac Blanchette, Robert A. De Los Ríos, Asunción |
author_sort |
Garrido-Benavent, Isaac |
title |
Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene |
title_short |
Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene |
title_full |
Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene |
title_fullStr |
Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene |
title_full_unstemmed |
Deadly mushrooms of the genus Galerina found in Antarctica colonized the continent as early as the Pleistocene |
title_sort |
deadly mushrooms of the genus galerina found in antarctica colonized the continent as early as the pleistocene |
publisher |
Cambridge University Press (CUP) |
publishDate |
2023 |
url |
http://dx.doi.org/10.1017/s0954102023000196 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102023000196 |
genre |
Antarc* Antarctic Antarctic Science Antarctica |
genre_facet |
Antarc* Antarctic Antarctic Science Antarctica |
op_source |
Antarctic Science volume 35, issue 5, page 345-358 ISSN 0954-1020 1365-2079 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/s0954102023000196 |
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Antarctic Science |
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35 |
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5 |
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345 |
op_container_end_page |
358 |
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1810492211970703360 |