Paleogene radiation of a plant pathogenic mushroom.

<h4>Background</h4>The global movement and speciation of fungal plant pathogens is important, especially because of the economic losses they cause and the ease with which they are able to spread across large areas. Understanding the biogeography and origin of these plant pathogens can pr...

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Autores principales:	Martin P A Coetzee, Paulette Bloomer, Michael J Wingfield, Brenda D Wingfield
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2011
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/4207940d5d9b474596953f654b6aab76
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spelling	oai:doaj.org-article:4207940d5d9b474596953f654b6aab762021-11-18T07:31:27ZPaleogene radiation of a plant pathogenic mushroom.1932-620310.1371/journal.pone.0028545https://doaj.org/article/4207940d5d9b474596953f654b6aab762011-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/22216099/?tool=EBIhttps://doaj.org/toc/1932-6203<h4>Background</h4>The global movement and speciation of fungal plant pathogens is important, especially because of the economic losses they cause and the ease with which they are able to spread across large areas. Understanding the biogeography and origin of these plant pathogens can provide insights regarding their dispersal and current day distribution. We tested the hypothesis of a Gondwanan origin of the plant pathogenic mushroom genus Armillaria and the currently accepted premise that vicariance accounts for the extant distribution of the species.<h4>Methods</h4>The phylogeny of a selection of Armillaria species was reconstructed based on Maximum Parsimony (MP), Maximum Likelihood (ML) and Bayesian Inference (BI). A timeline was then placed on the divergence of lineages using a Bayesian relaxed molecular clock approach.<h4>Results</h4>Phylogenetic analyses of sequenced data for three combined nuclear regions provided strong support for three major geographically defined clades: Holarctic, South American-Australasian and African. Molecular dating placed the initial radiation of the genus at 54 million years ago within the Early Paleogene, postdating the tectonic break-up of Gondwana.<h4>Conclusions</h4>The distribution of extant Armillaria species is the result of ancient long-distance dispersal rather than vicariance due to continental drift. As these finding are contrary to most prior vicariance hypotheses for fungi, our results highlight the important role of long-distance dispersal in the radiation of fungal pathogens from the Southern Hemisphere.Martin P A CoetzeePaulette BloomerMichael J WingfieldBrenda D WingfieldPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 6, Iss 12, p e28545 (2011)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Martin P A Coetzee Paulette Bloomer Michael J Wingfield Brenda D Wingfield Paleogene radiation of a plant pathogenic mushroom.
description	<h4>Background</h4>The global movement and speciation of fungal plant pathogens is important, especially because of the economic losses they cause and the ease with which they are able to spread across large areas. Understanding the biogeography and origin of these plant pathogens can provide insights regarding their dispersal and current day distribution. We tested the hypothesis of a Gondwanan origin of the plant pathogenic mushroom genus Armillaria and the currently accepted premise that vicariance accounts for the extant distribution of the species.<h4>Methods</h4>The phylogeny of a selection of Armillaria species was reconstructed based on Maximum Parsimony (MP), Maximum Likelihood (ML) and Bayesian Inference (BI). A timeline was then placed on the divergence of lineages using a Bayesian relaxed molecular clock approach.<h4>Results</h4>Phylogenetic analyses of sequenced data for three combined nuclear regions provided strong support for three major geographically defined clades: Holarctic, South American-Australasian and African. Molecular dating placed the initial radiation of the genus at 54 million years ago within the Early Paleogene, postdating the tectonic break-up of Gondwana.<h4>Conclusions</h4>The distribution of extant Armillaria species is the result of ancient long-distance dispersal rather than vicariance due to continental drift. As these finding are contrary to most prior vicariance hypotheses for fungi, our results highlight the important role of long-distance dispersal in the radiation of fungal pathogens from the Southern Hemisphere.
format	article
author	Martin P A Coetzee Paulette Bloomer Michael J Wingfield Brenda D Wingfield
author_facet	Martin P A Coetzee Paulette Bloomer Michael J Wingfield Brenda D Wingfield
author_sort	Martin P A Coetzee
title	Paleogene radiation of a plant pathogenic mushroom.
title_short	Paleogene radiation of a plant pathogenic mushroom.
title_full	Paleogene radiation of a plant pathogenic mushroom.
title_fullStr	Paleogene radiation of a plant pathogenic mushroom.
title_full_unstemmed	Paleogene radiation of a plant pathogenic mushroom.
title_sort	paleogene radiation of a plant pathogenic mushroom.
publisher	Public Library of Science (PLoS)
publishDate	2011
url	https://doaj.org/article/4207940d5d9b474596953f654b6aab76
work_keys_str_mv	AT martinpacoetzee paleogeneradiationofaplantpathogenicmushroom AT paulettebloomer paleogeneradiationofaplantpathogenicmushroom AT michaeljwingfield paleogeneradiationofaplantpathogenicmushroom AT brendadwingfield paleogeneradiationofaplantpathogenicmushroom
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Paleogene radiation of a plant pathogenic mushroom.

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