Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica
Widespread geographic distributions in lichens have been usually explained by the high dispersal capacity of their tiny diaspores. However, recent phylogenetic surveys have challenged this assumption and provided compelling evidence for cryptic speciation and more restricted distribution ranges in d...
Published in: | Molecular Phylogenetics and Evolution |
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Online Access: | http://hdl.handle.net/10261/228533 https://doi.org/10.1016/j.ympev.2020.107020 https://doi.org/10.13039/501100002428 https://doi.org/10.13039/501100003329 |
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ftcsic:oai:digital.csic.es:10261/228533 2024-02-11T09:57:19+01:00 Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica Garrido-Benavent, Isaac Pérez-Ortega, Sergio Ríos, Asunción de los Mayrhofer, Helmut Fernández-Mendoza, Fernando Austrian Science Fund Ministerio de Economía y Competitividad (España) University of Montana 2021-02 http://hdl.handle.net/10261/228533 https://doi.org/10.1016/j.ympev.2020.107020 https://doi.org/10.13039/501100002428 https://doi.org/10.13039/501100003329 unknown Elsevier #PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-64728-C2-2-R info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2014-16784 http://dx.doi.org/10.1016/j.ympev.2020.107020 Sí doi:10.1016/j.ympev.2020.107020 issn: 1095-9513 Molecular Phylogenetics and Evolution 155: 107020 (2021) http://hdl.handle.net/10261/228533 http://dx.doi.org/10.13039/501100002428 http://dx.doi.org/10.13039/501100003329 none Ascomycota Bipolar Cryptic species Lichen-forming fungi Phylogeography Species delimitation artículo http://purl.org/coar/resource_type/c_6501 2021 ftcsic https://doi.org/10.1016/j.ympev.2020.10702010.13039/50110000242810.13039/501100003329 2024-01-16T11:02:15Z Widespread geographic distributions in lichens have been usually explained by the high dispersal capacity of their tiny diaspores. However, recent phylogenetic surveys have challenged this assumption and provided compelling evidence for cryptic speciation and more restricted distribution ranges in diverse lineages of lichen-forming fungi. To evaluate these scenarios, we focus on the fungal genus Pseudephebe (Parmeliaceae) which includes amphitropical species, a distribution pattern whose origin has been a matter of debate since first recognized in the nineteenth century. In our study, a six-locus dataset and a broad specimen sampling covering almost all Earth's continents is used to investigate species delimitation in Pseudephebe. Population structure, gene flow and dating analyses, as well as genealogical reconstruction methods, are employed to disentangle the most plausible transcontinental migration routes, and estimate the timing of the origin of the amphitropical distribution and the Antarctic populations. Our results demonstrate the existence of three partly admixed phylogenetic species that diverged between the Miocene and Pliocene, and whose Quaternary distribution has been strongly driven by glacial cycles. Pseudephebe minuscula is the only species showing an amphitropical distribution, with populations in Antarctica, whereas the restricted distribution of P. pubescens and an undescribed Alaskan species might reflect the survival of these species in European and North American refugia. Our microevolutionary analyses suggest a Northern Hemisphere origin for P. minuscula, which could have dispersed into the Southern Hemisphere directly and/or through “mountain-hopping” during the Pleistocene. The Antarctic populations of this species are sorted into two genetic clusters: populations of the Antarctic Peninsula were grouped together with South American ones, and the Antarctic Continental populations formed a second cluster with Bolivian and Svalbard populations. Therefore, our data strongly suggest that the ... Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Antarctica Svalbard Digital.CSIC (Spanish National Research Council) Antarctic Antarctic Peninsula Svalbard The Antarctic Molecular Phylogenetics and Evolution 155 107020 |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Ascomycota Bipolar Cryptic species Lichen-forming fungi Phylogeography Species delimitation |
spellingShingle |
Ascomycota Bipolar Cryptic species Lichen-forming fungi Phylogeography Species delimitation Garrido-Benavent, Isaac Pérez-Ortega, Sergio Ríos, Asunción de los Mayrhofer, Helmut Fernández-Mendoza, Fernando Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica |
topic_facet |
Ascomycota Bipolar Cryptic species Lichen-forming fungi Phylogeography Species delimitation |
description |
Widespread geographic distributions in lichens have been usually explained by the high dispersal capacity of their tiny diaspores. However, recent phylogenetic surveys have challenged this assumption and provided compelling evidence for cryptic speciation and more restricted distribution ranges in diverse lineages of lichen-forming fungi. To evaluate these scenarios, we focus on the fungal genus Pseudephebe (Parmeliaceae) which includes amphitropical species, a distribution pattern whose origin has been a matter of debate since first recognized in the nineteenth century. In our study, a six-locus dataset and a broad specimen sampling covering almost all Earth's continents is used to investigate species delimitation in Pseudephebe. Population structure, gene flow and dating analyses, as well as genealogical reconstruction methods, are employed to disentangle the most plausible transcontinental migration routes, and estimate the timing of the origin of the amphitropical distribution and the Antarctic populations. Our results demonstrate the existence of three partly admixed phylogenetic species that diverged between the Miocene and Pliocene, and whose Quaternary distribution has been strongly driven by glacial cycles. Pseudephebe minuscula is the only species showing an amphitropical distribution, with populations in Antarctica, whereas the restricted distribution of P. pubescens and an undescribed Alaskan species might reflect the survival of these species in European and North American refugia. Our microevolutionary analyses suggest a Northern Hemisphere origin for P. minuscula, which could have dispersed into the Southern Hemisphere directly and/or through “mountain-hopping” during the Pleistocene. The Antarctic populations of this species are sorted into two genetic clusters: populations of the Antarctic Peninsula were grouped together with South American ones, and the Antarctic Continental populations formed a second cluster with Bolivian and Svalbard populations. Therefore, our data strongly suggest that the ... |
author2 |
Austrian Science Fund Ministerio de Economía y Competitividad (España) University of Montana |
format |
Article in Journal/Newspaper |
author |
Garrido-Benavent, Isaac Pérez-Ortega, Sergio Ríos, Asunción de los Mayrhofer, Helmut Fernández-Mendoza, Fernando |
author_facet |
Garrido-Benavent, Isaac Pérez-Ortega, Sergio Ríos, Asunción de los Mayrhofer, Helmut Fernández-Mendoza, Fernando |
author_sort |
Garrido-Benavent, Isaac |
title |
Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica |
title_short |
Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica |
title_full |
Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica |
title_fullStr |
Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica |
title_full_unstemmed |
Neogene speciation and Pleistocene expansion of the genus Pseudephebe (Parmeliaceae, lichenized fungi) involving multiple colonizations of Antarctica |
title_sort |
neogene speciation and pleistocene expansion of the genus pseudephebe (parmeliaceae, lichenized fungi) involving multiple colonizations of antarctica |
publisher |
Elsevier |
publishDate |
2021 |
url |
http://hdl.handle.net/10261/228533 https://doi.org/10.1016/j.ympev.2020.107020 https://doi.org/10.13039/501100002428 https://doi.org/10.13039/501100003329 |
geographic |
Antarctic Antarctic Peninsula Svalbard The Antarctic |
geographic_facet |
Antarctic Antarctic Peninsula Svalbard The Antarctic |
genre |
Antarc* Antarctic Antarctic Peninsula Antarctica Svalbard |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Antarctica Svalbard |
op_relation |
#PLACEHOLDER_PARENT_METADATA_VALUE# info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/CTM2015-64728-C2-2-R info:eu-repo/grantAgreement/MINECO/Plan Estatal de Investigación Científica y Técnica y de Innovación 2013-2016/RYC-2014-16784 http://dx.doi.org/10.1016/j.ympev.2020.107020 Sí doi:10.1016/j.ympev.2020.107020 issn: 1095-9513 Molecular Phylogenetics and Evolution 155: 107020 (2021) http://hdl.handle.net/10261/228533 http://dx.doi.org/10.13039/501100002428 http://dx.doi.org/10.13039/501100003329 |
op_rights |
none |
op_doi |
https://doi.org/10.1016/j.ympev.2020.10702010.13039/50110000242810.13039/501100003329 |
container_title |
Molecular Phylogenetics and Evolution |
container_volume |
155 |
container_start_page |
107020 |
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1790609622756753408 |