906
Genomic Analysis of the Spring Leg Defect in the Canadian Dorset Sheep Breed

Tuesday, August 19, 2014
Posters (The Westin Bayshore)
Johanne Cameron , Centre d'expertise en production ovine du Québec, La Pocatière, QC, Canada
Mohsen Jafarikia , Canadian Centre for Swine Improvement, Ottawa, ON, Canada
Laurence Maignel , Canadian Centre for Swine Improvement, Ottawa, ON, Canada
Robie Morel , Centre d'expertise en production ovine du Québec, La Pocatière, QC, Canada
Abstract Text:

Planned matings were carried out to produce 150 Dorset lambs and validate the hypothesis of a genetic determinism for the spring leg defect in sheep. Two groups of lambs were produced through planned matings; one at risk of developing spring leg and one at low risk of developing the defect. In the high risk group, 23.1% of the lambs developed the defect, versus 3.4% in the low risk group. A total of 192 sick and normal animals were genotyped with the ovine 600K SNP panel, and association studies were carried out between SNP genotypes and the expression of the defect. Three promising SNPs were detected on chromosome 24, showing polymorphisms significantly associated with the spring leg defect.

Keywords:

sheep

spring leg

GWAS

See more of: Posters: Sheep and Goats Breeding (Group 3)
See more of: Species Breeding: Sheep and goats
<< Previous Abstract | Next Abstract >>