Change search
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Tracing History: Phylogenetic, Taxonomic, and Biogeographic Research in the Colchicum Family
Uppsala University, Teknisk-naturvetenskapliga vetenskapsområdet, Faculty of Science and Technology, Biology, Department of Evolutionary Biology, Department of Systematic Botany.
2003 (English)Doctoral thesis, comprehensive summary (Other academic)
Abstract [en]

This thesis concerns the history and the intrafamilial delimitations of the plant family Colchicaceae. A phylogeny of 73 taxa representing all genera of Colchicaceae, except the monotypic Kuntheria, is presented. The molecular analysis based on three plastid regions—the rps16 intron, the atpB-rbcL intergenic spacer, and the trnL-F region—reveal the intrafamilial classification to be in need of revision. The two tribes Iphigenieae and Uvularieae are demon-strated to be paraphyletic. The well-known genus Colchicum is shown to be nested within Androcymbium, Onixotis constitutes a grade between Neodregea and Wurmbea, and Gloriosa is intermixed with species of Littonia. Two new tribes are described, Burchardieae and Tripladenieae, and the two tribes Colchiceae and Uvularieae are emended, leaving four tribes in the family. At generic level new combinations are made in Wurmbea and Gloriosa in order to render them monophyletic. The genus Androcymbium is paraphyletic in relation to Colchicum and the latter genus is therefore expanded. An investigation of the distribution of colchicine within the expanded Colchicaceae is conducted to evaluate the potential of colchicine as a synapomorphy of the re-circumscribed family. The results demonstrate presence of colchicine in all genera previously not examined in Colchicaceae and in the genus Burchardia, earlier reported to lack colchicine. Hence, demonstrating colchicine to be a synapomorphy for the family. An attempt to date the phylogeny of the order Liliales together with a dispersal-vicariance (DIVA) analysis indicates that the split between Colchicaceae and Alstromeriaceae-Luzuriagaceae represents a vicariance event following the disintegration of the Australian-Antarctican-South American link, ~34 million years ago. Further, the DIVA analysis indicates that Colchicaceae originated in Australia, first reached Asia and North America, and later Africa, from where they expanded to Europe and also dispersed back to Australia.

Place, publisher, year, edition, pages
Uppsala: Acta Universitatis Upsaliensis , 2003. , p. 33
Series
Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1104-232X ; 911
Keywords [en]
Biology, biogeography, Colchicaceae, colchicine, dating, phylogeny, taxonomy
Keywords [sv]
Biologi
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:uu:diva-3793ISBN: 91-554-5814-9 (print)OAI: oai:DiVA.org:uu-3793DiVA, id: diva2:163723
Public defence
2003-12-12, Lindahlsalen, EBC, Norbyvägen 18a, Uppsala, 10:00
Opponent
Supervisors
Available from: 2003-11-21 Created: 2003-11-21Bibliographically approved
List of papers
1. Age and biogeography of major clades in Liliales
Open this publication in new window or tab >>Age and biogeography of major clades in Liliales
2001 In: American Journal of Botany, Vol. 88, no 9, p. 1695-1703Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-91111 (URN)
Available from: 2003-11-21 Created: 2003-11-21Bibliographically approved
2. Phylogenetic relationships within Colchicaceae
Open this publication in new window or tab >>Phylogenetic relationships within Colchicaceae
2003 In: American Journal of Botany, Vol. 90, no 10, p. 1455-1462Article in journal (Refereed) Published
Identifiers
urn:nbn:se:uu:diva-91112 (URN)
Available from: 2003-11-21 Created: 2003-11-21Bibliographically approved
3. A new classification of Colchicaceae
Open this publication in new window or tab >>A new classification of Colchicaceae
2007 (English)In: Taxon, ISSN 0040-0262, E-ISSN 1996-8175, Vol. 56, no 1, p. 171-178Article in journal (Refereed) Published
Abstract [en]

A recent molecular study of Colchicaceae showed four of the 19 genera and two of the five tribes to be paraphyletic. The genus Colchicum is nested within Androcymbium, Onixotis constitutes a grade between Neodregea and Wurmbea, Gloriosa is intermixed with species of Littonia, and Burchardia forms a grade sister to the rest of the family. The current classification of Colchicaceae is discussed and a revised classification is presented, based on the primary principle of monophyly. The recognition of subfamily Wurmbaeoideae for the cormous genera results in a paraphyletic Uvularioideae unless a further two or three subfamilies are recognized among the rhizomatous members of the family. This is not justified in such a small family. A revised tribal taxonomy is presented, recognizing six morphologically diagnosable, monophyletic clades at tribal level. The tribes were defined to maximize nomenclatural and taxonomic stability. Three emended tribes, Anguillarieae, Colchiceae and Iphigenieae, are recognized in the wurmbaeoid clade. The uvularioid grade is divided into Uvularicae and two new tribes, Burchardieae and Tripladenieae. The genus Burchardia is probably paraphyletic and further tribes may be required to accommodate segregates pending analysis of all species in the genus. The genera Neodregea and Onixotis are included within a widened circumscription of Wurmbea, defined by an ebracteate, spiciform inflorescence and three leaves. The genus Littonia is included within an expanded Gloriosa, distinguished by a stoloniferous corm, opposite or verticillate lower leaves, yellow to orange flowers, and more or less fleshy seeds. The necessary new combinations in these two genera are provided.

National Category
Biological Sciences
Identifiers
urn:nbn:se:uu:diva-91113 (URN)000244825300019 ()
Available from: 2003-11-21 Created: 2003-11-21 Last updated: 2017-12-14Bibliographically approved
4. The genus Colchicum L. redefined to include Androcymbium Willd. based on molecular evidence
Open this publication in new window or tab >>The genus Colchicum L. redefined to include Androcymbium Willd. based on molecular evidence
2007 (English)In: Taxon, ISSN 0040-0262, E-ISSN 1996-8175, Vol. 56, no 3, p. 872-882Article in journal (Refereed) Published
Abstract [en]

A recent molecular analysis of the Colchicaceae has revealed that the genus Androcymbium is paraphyletic in relation to Colchicum and that the genus Merendera is polyphyletic. The implications of these results on the monophyly of the genera in this alliance are discussed. Two independent lineages within the paraphyletic Androcymbium are characterised by enlarged and brightly or contrastingly coloured bracts, which conceal the flowers. The tepals in these species are always cucullate. In the remaining lineages the flowers are more prominent and the tepals are mostly flat. No morphological characters can be identified that serve to diagnose the lineages in Androcymbium that are retrieved by the molecular analysis, and the only practical option is to include all species of Androcymbium within an expanded circumscription of Colchicum. The genus Colchicum in this expanded sense is defined by its short-stemmed or acaulescent habit, androecial nectaries, and 2-4-porate pollen. The necessary synonomy and new combinations are made.

Keywords
Androcymbium, Colchicum, Mediterranean, South Africa, Taxonomy
National Category
Biological Sciences
Identifiers
urn:nbn:se:uu:diva-91114 (URN)000249247400022 ()
Available from: 2003-11-21 Created: 2003-11-21 Last updated: 2017-12-14Bibliographically approved
5. Historical biogeography of Colchicaceae inferred from dispersal-vicariance analysis
Open this publication in new window or tab >>Historical biogeography of Colchicaceae inferred from dispersal-vicariance analysis
Manuscript (Other academic)
Identifiers
urn:nbn:se:uu:diva-91115 (URN)
Available from: 2003-11-21 Created: 2003-11-21 Last updated: 2010-01-13Bibliographically approved
6. Colchicine distribution in Colchicaceae investigated by mass spectrometry
Open this publication in new window or tab >>Colchicine distribution in Colchicaceae investigated by mass spectrometry
Manuscript (Other academic)
Identifiers
urn:nbn:se:uu:diva-91116 (URN)
Available from: 2003-11-21 Created: 2003-11-21 Last updated: 2010-01-13Bibliographically approved
7. A note on Iphigenia novae-zelandiae (Colchicaceae)
Open this publication in new window or tab >>A note on Iphigenia novae-zelandiae (Colchicaceae)
Manuscript (Other academic)
Identifiers
urn:nbn:se:uu:diva-91117 (URN)
Available from: 2003-11-21 Created: 2003-11-21 Last updated: 2010-01-13Bibliographically approved

Open Access in DiVA

fulltext(529 kB)3219 downloads
File information
File name FULLTEXT01.pdfFile size 529 kBChecksum SHA-1
0665361037288a4b107fb8614ae8e8d92ebbc096e81a54d835a89d6b318795db22ac5d62
Type fulltextMimetype application/pdf
Buy this publication >>

By organisation
Department of Systematic Botany
Biological Sciences

Search outside of DiVA

GoogleGoogle Scholar
Total: 3219 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

isbn
urn-nbn

Altmetric score

isbn
urn-nbn
Total: 2021 hits
CiteExportLink to record
Permanent link

Direct link
Cite
Citation style
  • apa
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf