Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.

The evolutionary basis for high species diversity in tropical regions of the world remains unresolved. Much research has focused on the biogeography of speciation in the Amazon Basin, which harbors the greatest diversity of terrestrial life. The leading hypotheses on allopatric diversification of Am...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Scott E Solomon, Mauricio Bacci, Joaquim Martins, Giovanna Gonçalves Vinha, Ulrich G Mueller
Formato:	article
Lenguaje:	EN
Publicado:	Public Library of Science (PLoS) 2008
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/eacbb5ea2fa64e39bfd62fc679f92d6c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:eacbb5ea2fa64e39bfd62fc679f92d6c
record_format	dspace
spelling	oai:doaj.org-article:eacbb5ea2fa64e39bfd62fc679f92d6c2021-11-25T06:11:30ZPaleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.1932-620310.1371/journal.pone.0002738https://doaj.org/article/eacbb5ea2fa64e39bfd62fc679f92d6c2008-07-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/18648512/pdf/?tool=EBIhttps://doaj.org/toc/1932-6203The evolutionary basis for high species diversity in tropical regions of the world remains unresolved. Much research has focused on the biogeography of speciation in the Amazon Basin, which harbors the greatest diversity of terrestrial life. The leading hypotheses on allopatric diversification of Amazonian taxa are the Pleistocene refugia, marine incursion, and riverine barrier hypotheses. Recent advances in the fields of phylogeography and species-distribution modeling permit a modern re-evaluation of these hypotheses. Our approach combines comparative, molecular phylogeographic analyses using mitochondrial DNA sequence data with paleodistribution modeling of species ranges at the last glacial maximum (LGM) to test these hypotheses for three co-distributed species of leafcutter ants (Atta spp.). The cumulative results of all tests reject every prediction of the riverine barrier hypothesis, but are unable to reject several predictions of the Pleistocene refugia and marine incursion hypotheses. Coalescent dating analyses suggest that population structure formed recently (Pleistocene-Pliocene), but are unable to reject the possibility that Miocene events may be responsible for structuring populations in two of the three species examined. The available data therefore suggest that either marine incursions in the Miocene or climate changes during the Pleistocene--or both--have shaped the population structure of the three species examined. Our results also reconceptualize the traditional Pleistocene refugia hypothesis, and offer a novel framework for future research into the area.Scott E SolomonMauricio BacciJoaquim MartinsGiovanna Gonçalves VinhaUlrich G MuellerPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 3, Iss 7, p e2738 (2008)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Scott E Solomon Mauricio Bacci Joaquim Martins Giovanna Gonçalves Vinha Ulrich G Mueller Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.
description	The evolutionary basis for high species diversity in tropical regions of the world remains unresolved. Much research has focused on the biogeography of speciation in the Amazon Basin, which harbors the greatest diversity of terrestrial life. The leading hypotheses on allopatric diversification of Amazonian taxa are the Pleistocene refugia, marine incursion, and riverine barrier hypotheses. Recent advances in the fields of phylogeography and species-distribution modeling permit a modern re-evaluation of these hypotheses. Our approach combines comparative, molecular phylogeographic analyses using mitochondrial DNA sequence data with paleodistribution modeling of species ranges at the last glacial maximum (LGM) to test these hypotheses for three co-distributed species of leafcutter ants (Atta spp.). The cumulative results of all tests reject every prediction of the riverine barrier hypothesis, but are unable to reject several predictions of the Pleistocene refugia and marine incursion hypotheses. Coalescent dating analyses suggest that population structure formed recently (Pleistocene-Pliocene), but are unable to reject the possibility that Miocene events may be responsible for structuring populations in two of the three species examined. The available data therefore suggest that either marine incursions in the Miocene or climate changes during the Pleistocene--or both--have shaped the population structure of the three species examined. Our results also reconceptualize the traditional Pleistocene refugia hypothesis, and offer a novel framework for future research into the area.
format	article
author	Scott E Solomon Mauricio Bacci Joaquim Martins Giovanna Gonçalves Vinha Ulrich G Mueller
author_facet	Scott E Solomon Mauricio Bacci Joaquim Martins Giovanna Gonçalves Vinha Ulrich G Mueller
author_sort	Scott E Solomon
title	Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.
title_short	Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.
title_full	Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.
title_fullStr	Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.
title_full_unstemmed	Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.
title_sort	paleodistributions and comparative molecular phylogeography of leafcutter ants (atta spp.) provide new insight into the origins of amazonian diversity.
publisher	Public Library of Science (PLoS)
publishDate	2008
url	https://doaj.org/article/eacbb5ea2fa64e39bfd62fc679f92d6c
work_keys_str_mv	AT scottesolomon paleodistributionsandcomparativemolecularphylogeographyofleafcutterantsattasppprovidenewinsightintotheoriginsofamazoniandiversity AT mauriciobacci paleodistributionsandcomparativemolecularphylogeographyofleafcutterantsattasppprovidenewinsightintotheoriginsofamazoniandiversity AT joaquimmartins paleodistributionsandcomparativemolecularphylogeographyofleafcutterantsattasppprovidenewinsightintotheoriginsofamazoniandiversity AT giovannagoncalvesvinha paleodistributionsandcomparativemolecularphylogeographyofleafcutterantsattasppprovidenewinsightintotheoriginsofamazoniandiversity AT ulrichgmueller paleodistributionsandcomparativemolecularphylogeographyofleafcutterantsattasppprovidenewinsightintotheoriginsofamazoniandiversity
_version_	1718414078416781312

Paleodistributions and comparative molecular phylogeography of leafcutter ants (Atta spp.) provide new insight into the origins of Amazonian diversity.

Ejemplares similares