882
Characterization of linkage disequilibrium and consistency of gametic phase in Canadian goats

Tuesday, August 19, 2014
Posters (The Westin Bayshore)
Luiz F. Brito , Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada
Mohsen Jafarikia , Canadian Centre for Swine Improvement, Ottawa, ON, Canada
Daniela A Grossi , Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada
Laurence Maignel , Canadian Centre for Swine Improvement, Ottawa, ON, Canada
Mehdi Sargolzaei , The Semex Alliance, Guelph, ON, Canada
Flavio S Schenkel , Centre for Genetic Improvement of Livestock, University of Guelph, Guelph, ON, Canada
Abstract Text:

The objective of this study was to estimate genome-wide levels of linkage disequilibrium (LD) in six Canadian goat breeds and to evaluate the persistence of gametic phase using the Illumina goat SNP50 BeadChip. A total of 976 animals were included in the analyses. The average values of LD between adjacent SNPs were 0.14, 0.15, 0.24, 0.19, 0.27 and 0.28 for Alpine, Saanen, Toggenburg, LaMancha, Nubian and Boer breeds, respectively. This indicates that, with a large enough training population, genomic selection could potentially be implemented within breed with the current 50k panel, but the Alpine and Saanen breeds might benefit from a denser panel. The gametic phase consistency between adjacent markers was not high enough (~0.50) to support the pooling of breeds in a training population for genomic selection. For multi-breed genomic evaluation, a denser SNP panels seems to be required.

Keywords:

Genomic selection

Goat 50k panel

Multi-breed population

See more of: Posters: Sheep and Goats Breeding (Group 1)
See more of: Species Breeding: Sheep and goats
<< Previous Abstract | Next Abstract >>