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The genetics of sexual reproduction in Amylostereum areolatum
Dissertation (MSc (Genetics))--University of Pretoria, 2017.
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| Format: | Thesis |
| Language: | English |
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2026
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| _version_ | 1867613631826362368 |
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| access_status_str | Open Access |
| author2 | Slippers, Bernard |
| author_browse | Slippers, Bernard |
| author_facet | Slippers, Bernard |
| collection | Thesis |
| description | Dissertation (MSc (Genetics))--University of Pretoria, 2017. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/110155 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:13.632Z |
| license_str | Not specified — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2026 |
| publishDateRange | 2026 |
| publishDateSort | 2026 |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/110155 The genetics of sexual reproduction in Amylostereum areolatum Slippers, Bernard caitbotha@gmail.com Van der Nest, Magriet A. Coetzee, Martin P.A. Botha, Caitlin Dissertation (MSc (Genetics))--University of Pretoria, 2017. All organisms must fulfil the need to reproduce in order to ensure the continuation of their species. Offspring may be produced by sexual or asexual means, or in some cases, by both. Sexual reproduction results in significant fitness costs and produces relatively fewer offspring in contrast to asexual reproduction. Reproductive strategies in Agaricomycetes are particularly interesting as they minimise some of the costs of sexual reproduction while maintaining an asexual phase. Gametic isogamy in this fungal class eliminates the so-called two-fold cost of sex because nuclear exchange is reciprocal. Isogamy theoretically allows for an unlimited number of genetically determined mating types and this is realised in the Agaricomycetes where mating types can number in the thousands. Amylostereum areolatum is a typical Agaricomycetes in many respects but is unusual in that it exists in a mutualism with the wood boring insect Sirex noctilio. The primary reproductive mode of this fungus is asexual vector assisted propagation and sexual reproduction has never been observed in the fungus_s invasive range. In this review we examine the fitness implications and evolutionary impact of sexual and asexual reproductive modes on genome evolution. We also explore the impact the Sirex-Amylostereum mutualism has had on the reproductive mode of the fungal symbiont, Amylostereum areolatum. Genetics MSc (Genetics) 2026-05-15T17:26:29Z 2026-05-15T17:26:29Z 18/02/14 2017 Dissertation http://hdl.handle.net/2263/110155 en application/pdf |
| spellingShingle | The genetics of sexual reproduction in Amylostereum areolatum |
| title | The genetics of sexual reproduction in Amylostereum areolatum |
| title_full | The genetics of sexual reproduction in Amylostereum areolatum |
| title_fullStr | The genetics of sexual reproduction in Amylostereum areolatum |
| title_full_unstemmed | The genetics of sexual reproduction in Amylostereum areolatum |
| title_short | The genetics of sexual reproduction in Amylostereum areolatum |
| title_sort | genetics of sexual reproduction in amylostereum areolatum |
| url | http://hdl.handle.net/2263/110155 |