Phylogeny and dating of Aframomum (Zingiberaceae)

A phylogeny of the African genus Aframomum (Zingiberaceae) is presented based on nuclear ribosomal DNA ITS and plastid trnL-trnF DNA sequences. parsimony and Bayesian analyses were performed on both independent and combined data sets, which were obtained by adding new sequences to already published...

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Autores Principales: Richardson, James, Harris, David, Auvay, Gaelle, Sarkinen, Tiina
Formato: info:eu-repo/semantics/Book
Publicado: Aarhus University Press 2010
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Acceso en línea:https://repository.urosario.edu.co/handle/10336/30074
id ir-10336-30074
recordtype dspace
spelling ir-10336-300742020-09-11T21:07:15Z Phylogeny and dating of Aframomum (Zingiberaceae) Filogenia y datación de Aframomum (Zingiberaceae) Richardson, James Harris, David Auvay, Gaelle Sarkinen, Tiina Pleistoccene refuge theory Molecular dating Oligo- miocene speciation A phylogeny of the African genus Aframomum (Zingiberaceae) is presented based on nuclear ribosomal DNA ITS and plastid trnL-trnF DNA sequences. parsimony and Bayesian analyses were performed on both independent and combined data sets, which were obtained by adding new sequences to already published data. Aframomum, whose sister clade is quite likely to be the genus Renealmia, is shown to be monophyletic in the trees from the analyses of the combined data sets and ITS, but the relationships within the genus are not well supported apart from the clades with accessions from the same species (Aframomum limbatum, A. longiligulatum and A. verrucosum). Dating of the crown node of Aframomum using either Non-Prametric Rate Smoothing or a Bayesian approach using BEAST revealed that it diversified during the late Oligocene to Miocene (8.4 +/-0.1-31.4+/-2.9 Mya), which is older than that suggested by previous authors who postulated that the genus may have speciated during the Pleistocene. 2010 2020-09-11T21:07:09Z info:eu-repo/semantics/Book info:eu-repo/semantics/publishedVersion ISBN:978-87-7934-398-6 https://repository.urosario.edu.co/handle/10336/30074 info:eu-repo/semantics/restrictedAccess application/pdf Aarhus University Press Phylogeny and dating of Aframomum (Zingiberaceae)
institution EdocUR - Universidad del Rosario
collection DSpace
topic Pleistoccene refuge theory
Molecular dating
Oligo- miocene speciation
spellingShingle Pleistoccene refuge theory
Molecular dating
Oligo- miocene speciation
Richardson, James
Harris, David
Auvay, Gaelle
Sarkinen, Tiina
Phylogeny and dating of Aframomum (Zingiberaceae)
description A phylogeny of the African genus Aframomum (Zingiberaceae) is presented based on nuclear ribosomal DNA ITS and plastid trnL-trnF DNA sequences. parsimony and Bayesian analyses were performed on both independent and combined data sets, which were obtained by adding new sequences to already published data. Aframomum, whose sister clade is quite likely to be the genus Renealmia, is shown to be monophyletic in the trees from the analyses of the combined data sets and ITS, but the relationships within the genus are not well supported apart from the clades with accessions from the same species (Aframomum limbatum, A. longiligulatum and A. verrucosum). Dating of the crown node of Aframomum using either Non-Prametric Rate Smoothing or a Bayesian approach using BEAST revealed that it diversified during the late Oligocene to Miocene (8.4 +/-0.1-31.4+/-2.9 Mya), which is older than that suggested by previous authors who postulated that the genus may have speciated during the Pleistocene.
format info:eu-repo/semantics/Book
author Richardson, James
Harris, David
Auvay, Gaelle
Sarkinen, Tiina
author_facet Richardson, James
Harris, David
Auvay, Gaelle
Sarkinen, Tiina
author_sort Richardson, James
title Phylogeny and dating of Aframomum (Zingiberaceae)
title_short Phylogeny and dating of Aframomum (Zingiberaceae)
title_full Phylogeny and dating of Aframomum (Zingiberaceae)
title_fullStr Phylogeny and dating of Aframomum (Zingiberaceae)
title_full_unstemmed Phylogeny and dating of Aframomum (Zingiberaceae)
title_sort phylogeny and dating of aframomum (zingiberaceae)
publisher Aarhus University Press
publishDate 2010
url https://repository.urosario.edu.co/handle/10336/30074
_version_ 1677976775331676160
score 11,383439