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Article: A non-coding plastid DNA phylogeny of Asian Begonia (Begoniaceae): evidence for morphological homoplasy and sectional polyphyly

TitleA non-coding plastid DNA phylogeny of Asian Begonia (Begoniaceae): evidence for morphological homoplasy and sectional polyphyly
Authors
Issue Date2011
PublisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ympev
Citation
Molecular Phylogenetics and Evolution, 2011, v. 60 n. 3, p. 428-444 How to Cite?
AbstractMaximum likelihood and Bayesian analyses of non-coding plastid DNA sequence data based on a broad sampling of all major Asian Begonia sections (ndhA intron, ndhF-rpl32 spacer, rpl32-trnL spacer, 3977 aligned characters, 84 species) were used to reconstruct the phylogeny of Asian Begonia and to test the monophyly of major Asian Begonia sections. Ovary and fruit characters which are crucial in current sectional circumscriptions were mapped on the phylogeny to assess their utility in infrageneric classifications. The results indicate that the strong systematic emphasis placed on single, homoplasious characters such as undivided placenta lamellae (section Reichenheimia) and fleshy pericarps (section Sphenanthera), and the recognition of sections primarily based on a suite of plesiomorphic characters including three-locular ovaries with axillary, bilamellate placentae and dry, dehiscent pericarps (section Diploclinium), has resulted in the circumscription of several polyphyletic sections. Moreover, sections Platycentrum and Petermannia were recovered as paraphyletic. Because of the homoplasy of systematically important characters, current classifications have a certain diagnostic, but only poor predictive value. The presented phylogeny provides for the first time a reasonably resolved and supported phylogenetic framework for Asian Begonia which has the power to inform future taxonomic, biogeographic and evolutionary studies.
Persistent Identifierhttp://hdl.handle.net/10722/136248
ISSN
2015 Impact Factor: 3.792
2015 SCImago Journal Rankings: 2.287
ISI Accession Number ID
Funding AgencyGrant Number
Indonesian Ministry of Research and Technology (RISTEK)
Direktorat Jenderal Perlindungan Hutan dan Konservasi (DITJET PHKA)
MacIntyre Trust
Royal Horticultural Society
Stanley Smith (UK) Horticultural Trust
Systematics Association
Funding Information:

We are grateful to E.B. Walujo (LIPI, Cibinong Science Centre, BO), and M. Siregar and Hartutiningsih (LIPI, Bogor Botanic Gardens) for their support of our expeditions in Indonesia; to H. Wiriadinata, D. Girmansyah, A. Poulsen and K. Armstrong for providing silica-dried plant material; to the horticulture staff at Bali Botanic Garden, Bogor Botanic Gardens, the Royal Botanic Garden Edinburgh and the Royal Botanic Gardens Glasgow for their expert care of the Begonia collections; to the curators of A, B, BM, BO, CEB, E, L, K, SING and WAG for allowing us access to herbarium material and living collections. This research would not have been possible without the support of the Indonesian Ministry of Research and Technology (RISTEK) and Direktorat Jenderal Perlindungan Hutan dan Konservasi (DITJET PHKA). The funding of the first author's PhD project by the M.L. MacIntyre Trust, and support of two expeditions to Sulawesi in 2008 and 2009 by the Royal Horticultural Society, the Stanley Smith (UK) Horticultural Trust and the Systematics Association is gratefully acknowledged.

 

DC FieldValueLanguage
dc.contributor.authorThomas, DCen_US
dc.contributor.authorHughes, Men_US
dc.contributor.authorPhutthai, Ten_US
dc.contributor.authorRajbhandary, Sen_US
dc.contributor.authorRubite, Ren_US
dc.contributor.authorArdi, WHen_US
dc.contributor.authorRichardson, JEen_US
dc.date.accessioned2011-07-27T02:11:40Z-
dc.date.available2011-07-27T02:11:40Z-
dc.date.issued2011en_US
dc.identifier.citationMolecular Phylogenetics and Evolution, 2011, v. 60 n. 3, p. 428-444en_US
dc.identifier.issn1055-7903-
dc.identifier.urihttp://hdl.handle.net/10722/136248-
dc.description.abstractMaximum likelihood and Bayesian analyses of non-coding plastid DNA sequence data based on a broad sampling of all major Asian Begonia sections (ndhA intron, ndhF-rpl32 spacer, rpl32-trnL spacer, 3977 aligned characters, 84 species) were used to reconstruct the phylogeny of Asian Begonia and to test the monophyly of major Asian Begonia sections. Ovary and fruit characters which are crucial in current sectional circumscriptions were mapped on the phylogeny to assess their utility in infrageneric classifications. The results indicate that the strong systematic emphasis placed on single, homoplasious characters such as undivided placenta lamellae (section Reichenheimia) and fleshy pericarps (section Sphenanthera), and the recognition of sections primarily based on a suite of plesiomorphic characters including three-locular ovaries with axillary, bilamellate placentae and dry, dehiscent pericarps (section Diploclinium), has resulted in the circumscription of several polyphyletic sections. Moreover, sections Platycentrum and Petermannia were recovered as paraphyletic. Because of the homoplasy of systematically important characters, current classifications have a certain diagnostic, but only poor predictive value. The presented phylogeny provides for the first time a reasonably resolved and supported phylogenetic framework for Asian Begonia which has the power to inform future taxonomic, biogeographic and evolutionary studies.-
dc.languageengen_US
dc.publisherAcademic Press. The Journal's web site is located at http://www.elsevier.com/locate/ympev-
dc.relation.ispartofMolecular Phylogenetics and Evolutionen_US
dc.subject.meshBegoniaceae - classification - genetics-
dc.subject.meshDNA, Chloroplast - genetics-
dc.subject.meshDNA, Plant - genetics-
dc.subject.meshFruit - genetics-
dc.subject.meshPhylogeny-
dc.titleA non-coding plastid DNA phylogeny of Asian Begonia (Begoniaceae): evidence for morphological homoplasy and sectional polyphylyen_US
dc.typeArticleen_US
dc.identifier.emailThomas, DC: dcthomas@hku.hken_US
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ympev.2011.05.006-
dc.identifier.pmid21605690-
dc.identifier.scopuseid_2-s2.0-79959661805-
dc.identifier.hkuros187986en_US
dc.identifier.volume60en_US
dc.identifier.issue3-
dc.identifier.spage428en_US
dc.identifier.epage444en_US
dc.identifier.isiWOS:000292580200014-
dc.publisher.placeUnited States-
dc.identifier.citeulike9331798-

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