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Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters
Phylogenetic relationships in Cyperus and allied genera in the tribe Cypereae (family Cyperaceae) have been reconstructed using parsimony and Bayesian analyses of a combined data matrix, which consisted of plastid DNA (rbcL, trnL-F intergenic spacer, and rps16), nuclear ribosomal DNA (internal trans...
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2017
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| _version_ | 1867613267223904256 |
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| access_status_str | Open Access |
| author | Dludlu, Meshack N |
| author2 | Muasya, A Muthama |
| author_browse | Dludlu, Meshack N Muasya, A Muthama |
| author_facet | Muasya, A Muthama Dludlu, Meshack N |
| author_sort | Dludlu, Meshack N |
| collection | Thesis |
| description | Phylogenetic relationships in Cyperus and allied genera in the tribe Cypereae (family Cyperaceae) have been reconstructed using parsimony and Bayesian analyses of a combined data matrix, which consisted of plastid DNA (rbcL, trnL-F intergenic spacer, and rps16), nuclear ribosomal DNA (internal transcribed spacer ITS) sequences and morphological data. From both analyses, tribe Cypereae were resolved into a very strongly supported clade (Posterior probability =98%; Bootstrap= 100%) characterised by the Cyperus-type of embryo and the absence of perianth segments. Cyperus sensu stricto is not monophyletic as currently resolved as several cyperoid genera are embedded within it. The Cyperoid clade splits into two distinct clades which are diagnosed by the Eucyperoid (C₃) and Chlorocyperoid (C₄) anatomy. The evolution of key morphological characters used to diagnose genera is discussed and genera whose classification needs to be revisited are highlighted. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/26187 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:33:25.185Z |
| 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:11427/26187 Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters Dludlu, Meshack N Muasya, A Muthama Botany Phylogenetic relationships in Cyperus and allied genera in the tribe Cypereae (family Cyperaceae) have been reconstructed using parsimony and Bayesian analyses of a combined data matrix, which consisted of plastid DNA (rbcL, trnL-F intergenic spacer, and rps16), nuclear ribosomal DNA (internal transcribed spacer ITS) sequences and morphological data. From both analyses, tribe Cypereae were resolved into a very strongly supported clade (Posterior probability =98%; Bootstrap= 100%) characterised by the Cyperus-type of embryo and the absence of perianth segments. Cyperus sensu stricto is not monophyletic as currently resolved as several cyperoid genera are embedded within it. The Cyperoid clade splits into two distinct clades which are diagnosed by the Eucyperoid (C₃) and Chlorocyperoid (C₄) anatomy. The evolution of key morphological characters used to diagnose genera is discussed and genera whose classification needs to be revisited are highlighted. 2017-11-13T08:49:07Z 2017-11-13T08:49:07Z 2007 2017-02-02T13:41:08Z Bachelor Thesis Honours BSc (Hons) http://hdl.handle.net/11427/26187 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Botany Dludlu, Meshack N Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters |
| thesis_degree_str | Bachelor's / Honours |
| title | Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters |
| title_full | Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters |
| title_fullStr | Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters |
| title_full_unstemmed | Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters |
| title_short | Cyperaceae tribe Cyperae : phylogenetic relationships and evolutionary patterns of diagnostic characters |
| title_sort | cyperaceae tribe cyperae phylogenetic relationships and evolutionary patterns of diagnostic characters |
| topic | Botany |
| url | http://hdl.handle.net/11427/26187 |
| work_keys_str_mv | AT dludlumeshackn cyperaceaetribecyperaephylogeneticrelationshipsandevolutionarypatternsofdiagnosticcharacters |