Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs
Traditional ‘random’ sampling strategy for molecular characterization has revealed low genetic differentiation and weak genetic structure among Asian and African indigenous, non-descript chicken populations although they carried high within-population phenotypic and molecular genetic diversity. In...
| Main Authors: | , , , , , |
|---|---|
| Format: | Conference Paper |
| Language: | Inglés |
| Published: |
American Society of Animal Science
2014
|
| Subjects: | |
| Online Access: | https://hdl.handle.net/10568/78497 |
| _version_ | 1855539348840120320 |
|---|---|
| author | Samaraweera, A.M. Silva, P. Abeykone, N.D.F. Ibrahim, Mohamed N.M. Okeyo Mwai, Ally Han Jianlin |
| author_browse | Abeykone, N.D.F. Han Jianlin Ibrahim, Mohamed N.M. Okeyo Mwai, Ally Samaraweera, A.M. Silva, P. |
| author_facet | Samaraweera, A.M. Silva, P. Abeykone, N.D.F. Ibrahim, Mohamed N.M. Okeyo Mwai, Ally Han Jianlin |
| author_sort | Samaraweera, A.M. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Traditional ‘random’ sampling strategy for molecular characterization has revealed low genetic differentiation and weak genetic structure among Asian and African indigenous, non-descript chicken populations although
they carried high within-population phenotypic and molecular genetic diversity. In the present study, 192 backyard
chickens collected following a nearly ‘complete’ sampling strategy for all adult birds within flocks of 75 households in
five villages at two sites in Sri Lanka were genotyped using 20 microsatellite markers. The phenotypes and history of
these birds were also recorded. A link of phenotypic composition and flock size with specific genetic structure of the
backyard chicken populations was explored. The results
suggest that the households who used to keep large flocks
of indigenous backyard chickens of mixed genotypes
should be included in in-situ conservation program to effectively
maintain and sustainably utilize these important
chicken genetic resources. |
| format | Conference Paper |
| id | CGSpace78497 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | American Society of Animal Science |
| publisherStr | American Society of Animal Science |
| record_format | dspace |
| spelling | CGSpace784972025-11-04T16:28:08Z Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs Samaraweera, A.M. Silva, P. Abeykone, N.D.F. Ibrahim, Mohamed N.M. Okeyo Mwai, Ally Han Jianlin chickens genetic improvement genetics research flocks Traditional ‘random’ sampling strategy for molecular characterization has revealed low genetic differentiation and weak genetic structure among Asian and African indigenous, non-descript chicken populations although they carried high within-population phenotypic and molecular genetic diversity. In the present study, 192 backyard chickens collected following a nearly ‘complete’ sampling strategy for all adult birds within flocks of 75 households in five villages at two sites in Sri Lanka were genotyped using 20 microsatellite markers. The phenotypes and history of these birds were also recorded. A link of phenotypic composition and flock size with specific genetic structure of the backyard chicken populations was explored. The results suggest that the households who used to keep large flocks of indigenous backyard chickens of mixed genotypes should be included in in-situ conservation program to effectively maintain and sustainably utilize these important chicken genetic resources. 2014-08-22 2016-12-23T05:53:39Z 2016-12-23T05:53:39Z Conference Paper https://hdl.handle.net/10568/78497 en Open Access application/pdf American Society of Animal Science Samaraweera, A.M., Silva, P., Abeykone, N. D. F., Ibrahim, M. N. M., Okeyo, A.M. and Han, J. L. 2014. Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs. IN: Proceedings of the 10th World Congress on Genetics Applied to Livestock Production, Vancouver, Canada, 17-22 August 2014. Champaign, USA: American Society of Animal Science. |
| spellingShingle | chickens genetic improvement genetics research flocks Samaraweera, A.M. Silva, P. Abeykone, N.D.F. Ibrahim, Mohamed N.M. Okeyo Mwai, Ally Han Jianlin Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs |
| title | Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs |
| title_full | Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs |
| title_fullStr | Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs |
| title_full_unstemmed | Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs |
| title_short | Population genetic structure of Sri Lankan backyard chicken flocks: Implication for conservation and genetic improvement programs |
| title_sort | population genetic structure of sri lankan backyard chicken flocks implication for conservation and genetic improvement programs |
| topic | chickens genetic improvement genetics research flocks |
| url | https://hdl.handle.net/10568/78497 |
| work_keys_str_mv | AT samaraweeraam populationgeneticstructureofsrilankanbackyardchickenflocksimplicationforconservationandgeneticimprovementprograms AT silvap populationgeneticstructureofsrilankanbackyardchickenflocksimplicationforconservationandgeneticimprovementprograms AT abeykonendf populationgeneticstructureofsrilankanbackyardchickenflocksimplicationforconservationandgeneticimprovementprograms AT ibrahimmohamednm populationgeneticstructureofsrilankanbackyardchickenflocksimplicationforconservationandgeneticimprovementprograms AT okeyomwaially populationgeneticstructureofsrilankanbackyardchickenflocksimplicationforconservationandgeneticimprovementprograms AT hanjianlin populationgeneticstructureofsrilankanbackyardchickenflocksimplicationforconservationandgeneticimprovementprograms |