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Genetic diversity and population structure of South African dairy goats
Dissertation (MSc (Agric))--University of Pretoria, 2014.
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| Format: | Thesis |
| Language: | English |
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University of Pretoria
2021
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| _version_ | 1867613618360549376 |
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| access_status_str | Open Access |
| author2 | Marle-Koster, Este |
| author_browse | Marle-Koster, Este |
| author_facet | Marle-Koster, Este |
| collection | Thesis |
| dc_rights_str_mv | © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
| description | Dissertation (MSc (Agric))--University of Pretoria, 2014. |
| format | Thesis |
| id | oai:repository.up.ac.za:2263/79286 |
| institution | University of Pretoria (South Africa) |
| language | English |
| last_indexed | 2026-06-10T12:39:00.799Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from UPSpace — University of Pretoria Institutional Repository |
| publishDate | 2021 |
| publishDateRange | 2021 |
| publishDateSort | 2021 |
| publisher | University of Pretoria |
| publisherStr | University of Pretoria |
| record_format | dspace |
| source_str | UPSpace — University of Pretoria Institutional Repository |
| spelling | oai:repository.up.ac.za:2263/79286 Genetic diversity and population structure of South African dairy goats Marle-Koster, Este lydia.bosman@tuks.co.za Visser, Carina Bosman, Lydia UCTD Dissertation (MSc (Agric))--University of Pretoria, 2014. In this study 240 commercial dairy goats (130 Saanen, 51 Toggenburg and 59 British Alpine) were genotyped with a panel of 25 microsatellite markers, 16 of which were on the FAO/ISAG recommended list for genetic diversity studies in Capra hircus. A moderate MNA of 8 was observed for all markers across all three breeds (ranging from 3 to 12 alleles per locus), and the mean PIC of the panel was 0.60. None of the loci investigated in this study were discarded due to HWE deviation, although some did deviate significantly from HWE within the breeds (5 in the Saanen, and 6 each in the Toggenburg and British Alpine). The overall diversity observed for the Saanen, Toggenburg and British Alpine were 62.6%, 63.4% and 63.4% respectively, indicating moderate diversity. Wright’s FIS values for the three breeds ranged between -0.063 to -0.005. Population structure analysis revealed six distinct populations, where the British Alpine and Toggenburg each formed individual clusters, and the Saanen formed three clusters. A crossbred population was also identified. Pedigree analysis found that most of the does contained in the herd book were culled before their third lactation. Ne ranges were estimated based on the available pedigree data of the Saanen (36–341), Toggenburg (18–63) and British Alpine (13–53). Average inbreeding values were 0.0632, 0.1335 and 0.0993 respectively. This study presents an insight to the genetic diversity of dairy goats in South Africa, and can be applied in the genetic management of the existing populations. Animal and Wildlife Sciences MSc (Agric) Unrestricted 2021-04-06T07:22:41Z 2021-04-06T07:22:41Z 2014/07/08 2014 Dissertation Bosman, L 2014, Genetic diversity and population structure of South African dairy goats, MSc Dissertation, University of Pretoria, Pretoria, viewed yymmdd <http://hdl.handle.net/2263/79286> M14/9/142 http://hdl.handle.net/2263/79286 en © 2020 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. application/pdf University of Pretoria |
| spellingShingle | UCTD Genetic diversity and population structure of South African dairy goats |
| title | Genetic diversity and population structure of South African dairy goats |
| title_full | Genetic diversity and population structure of South African dairy goats |
| title_fullStr | Genetic diversity and population structure of South African dairy goats |
| title_full_unstemmed | Genetic diversity and population structure of South African dairy goats |
| title_short | Genetic diversity and population structure of South African dairy goats |
| title_sort | genetic diversity and population structure of south african dairy goats |
| topic | UCTD |
| url | http://hdl.handle.net/2263/79286 |