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Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)

The genus Ficinia Schrad. has its centre of diversity in the Cape Floristic Region and phylogenetic relationships within this genus have not been fully studied representing a gap in the body of work on the Cyperaceae. Phylogenetic analyses provide strong support for the sister relationship between I...

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Main Author: Francis, Caitlynne Melanie
Other Authors: Muasya, A Muthama
Format: Thesis
Language:English
Published: Department of Biological Sciences 2017
Subjects:
Botany
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access_status_str Open Access
author Francis, Caitlynne Melanie
author2 Muasya, A Muthama
author_browse Francis, Caitlynne Melanie
Muasya, A Muthama
author_facet Muasya, A Muthama
Francis, Caitlynne Melanie
author_sort Francis, Caitlynne Melanie
collection Thesis
description The genus Ficinia Schrad. has its centre of diversity in the Cape Floristic Region and phylogenetic relationships within this genus have not been fully studied representing a gap in the body of work on the Cyperaceae. Phylogenetic analyses provide strong support for the sister relationship between Isolepis and Ficinia in both parsimony and Bayesian analyses (BP = 96; PP = 1). Isolepis marginata consistently resolved as more closely related to the Ficinia clade than to the rest of the species in Isolepis. Ficinia undosa was positioned outside its own genus (as well as the entire FiciniaIsolepis clade) rendering the genus paraphyletic. This species appears to be more closely related to members of the Scirpus falsus-Scoipoides clade. As in previous studies, the New Zealand monotypic genus Desmoschoenus is resolved as a member of Ficinia and is closely allied with Ficinia pallens (BP=43, PP=0.56). Macroevolutionary reconstruction of characters such as life form and the presence of a gynophore disk revealed interesting patterns within the genus as well. Perennial habit is a synapomorphy for Ficinia and distinguishes it from the generally annual sistergenus Isolepis. Though a young genus when compared with Isolepis, Ficinia has radiated in the CFR quite rapidly following the -shift toward Mediterranean climate in this region. While support across the tree is quite low, due perhaps to the slow mutation rate among recent and rapidly radiated perennials, several relationships within m the genus are resolved with moderate nodal support.
format Thesis
id oai:open.uct.ac.za:11427/25870
institution University of Cape Town (South Africa)
language eng
last_indexed 2026-06-10T12:53:08.519Z
license_str Not specified — see source repository
provenance_str_mv Harvested via OAI-PMH from UCTD — University of Cape Town Open Access Repository
publishDate 2017
publishDateRange 2017
publishDateSort 2017
publisher Department of Biological Sciences
publisherStr Department of Biological Sciences
record_format dspace
source_str UCTD — University of Cape Town Open Access Repository
spelling oai:open.uct.ac.za:11427/25870 Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae) Francis, Caitlynne Melanie Muasya, A Muthama Botany The genus Ficinia Schrad. has its centre of diversity in the Cape Floristic Region and phylogenetic relationships within this genus have not been fully studied representing a gap in the body of work on the Cyperaceae. Phylogenetic analyses provide strong support for the sister relationship between Isolepis and Ficinia in both parsimony and Bayesian analyses (BP = 96; PP = 1). Isolepis marginata consistently resolved as more closely related to the Ficinia clade than to the rest of the species in Isolepis. Ficinia undosa was positioned outside its own genus (as well as the entire FiciniaIsolepis clade) rendering the genus paraphyletic. This species appears to be more closely related to members of the Scirpus falsus-Scoipoides clade. As in previous studies, the New Zealand monotypic genus Desmoschoenus is resolved as a member of Ficinia and is closely allied with Ficinia pallens (BP=43, PP=0.56). Macroevolutionary reconstruction of characters such as life form and the presence of a gynophore disk revealed interesting patterns within the genus as well. Perennial habit is a synapomorphy for Ficinia and distinguishes it from the generally annual sistergenus Isolepis. Though a young genus when compared with Isolepis, Ficinia has radiated in the CFR quite rapidly following the -shift toward Mediterranean climate in this region. While support across the tree is quite low, due perhaps to the slow mutation rate among recent and rapidly radiated perennials, several relationships within m the genus are resolved with moderate nodal support. 2017-10-30T06:21:17Z 2017-10-30T06:21:17Z 2009 2017-02-21T10:19:56Z Bachelor Thesis Honours BSc (Hons) http://hdl.handle.net/11427/25870 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town
spellingShingle Botany
Francis, Caitlynne Melanie
Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
thesis_degree_str Bachelor's / Honours
title Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
title_full Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
title_fullStr Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
title_full_unstemmed Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
title_short Phylogenetic inference and macro-evolutionary patterns in Ficinia Schrad. (Cyperaceae)
title_sort phylogenetic inference and macro evolutionary patterns in ficinia schrad cyperaceae
topic Botany
url http://hdl.handle.net/11427/25870
work_keys_str_mv AT franciscaitlynnemelanie phylogeneticinferenceandmacroevolutionarypatternsinficiniaschradcyperaceae

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