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Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum
Two distinct forms of Pseudocrossidium crinitum (Bryophyta) exist- a form with a white hair point on the leaf, and one with a yellow hair point on the leaf. The white and yellow forms exist in similar areas, but the yellow hair point form is found on its own in arid areas. In this paper we analyse 1...
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| Format: | Thesis |
| Language: | English |
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Department of Biological Sciences
2017
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| _version_ | 1867613212160032768 |
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| access_status_str | Open Access |
| author | Watson, Julia |
| author2 | Hedderson, Terry A |
| author_browse | Hedderson, Terry A Watson, Julia |
| author_facet | Hedderson, Terry A Watson, Julia |
| author_sort | Watson, Julia |
| collection | Thesis |
| description | Two distinct forms of Pseudocrossidium crinitum (Bryophyta) exist- a form with a white hair point on the leaf, and one with a yellow hair point on the leaf. The white and yellow forms exist in similar areas, but the yellow hair point form is found on its own in arid areas. In this paper we analyse 16 morphometric variables and chloroplast and nuclear DNA molecular information to determine whether Pseudocrossidium crinitum should be separated into two species based on morphological differences. We use ANOVA, Principal components analysis and cluster analysis to analyse the morphometric data. Four significantly different morphological differences were found between the two forms. Five haplotypes were revealed from 8 samples, with only one haplotype shared amongst them. Two samples from the Cedarburg exhibit highly different DNA to the rest of the samples. Although genetic sampling was not large enough on which to base significant conclusions, we find that the two forms - are morphologically differentiated enough to separate Pseudocrossidium crinitum into two species. |
| format | Thesis |
| id | oai:open.uct.ac.za:11427/26491 |
| institution | University of Cape Town (South Africa) |
| language | eng |
| last_indexed | 2026-06-10T12:32:33.381Z |
| 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:11427/26491 Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum Watson, Julia Hedderson, Terry A Botany Two distinct forms of Pseudocrossidium crinitum (Bryophyta) exist- a form with a white hair point on the leaf, and one with a yellow hair point on the leaf. The white and yellow forms exist in similar areas, but the yellow hair point form is found on its own in arid areas. In this paper we analyse 16 morphometric variables and chloroplast and nuclear DNA molecular information to determine whether Pseudocrossidium crinitum should be separated into two species based on morphological differences. We use ANOVA, Principal components analysis and cluster analysis to analyse the morphometric data. Four significantly different morphological differences were found between the two forms. Five haplotypes were revealed from 8 samples, with only one haplotype shared amongst them. Two samples from the Cedarburg exhibit highly different DNA to the rest of the samples. Although genetic sampling was not large enough on which to base significant conclusions, we find that the two forms - are morphologically differentiated enough to separate Pseudocrossidium crinitum into two species. 2017-12-07T09:37:10Z 2017-12-07T09:37:10Z 2004 2017-02-06T12:19:16Z Bachelor Thesis Honours BSc (Hons) http://hdl.handle.net/11427/26491 eng application/pdf Department of Biological Sciences Faculty of Science University of Cape Town |
| spellingShingle | Botany Watson, Julia Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum |
| thesis_degree_str | Bachelor's / Honours |
| title | Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum |
| title_full | Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum |
| title_fullStr | Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum |
| title_full_unstemmed | Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum |
| title_short | Morphometric and molecular analysis of two distinct forms of Pseudocrossidium crinitum |
| title_sort | morphometric and molecular analysis of two distinct forms of pseudocrossidium crinitum |
| topic | Botany |
| url | http://hdl.handle.net/11427/26491 |
| work_keys_str_mv | AT watsonjulia morphometricandmolecularanalysisoftwodistinctformsofpseudocrossidiumcrinitum |