First insights in the genetics of caseous lymphadenitis in goats
Minozzi, Giulietta | Mattiello, Silvana | Grosso, Lilia | Crepaldi, Paola | Chessa, Stefania | Pagnacco, Giulio
Abscesses are a common problem in goat farms worldwide. In most cases, the disease is caused by Corynebacterium pseudotuberculosis that is the aetiological agent of caseous lymphadenitis (CLA). CLA causes considerable economic losses, due to reduced milk production, and to carcase damage. At present, no effective therapy for CLA is available and vaccine use is limited. The current study presents evidence for loci associated to CLA susceptibility identified using the 50K Goat SNP panel in a case-control genome wide association study. The analysis of the genotype data identified four chromosomal regions associated with disease status: on chromosomes 5, 7, 8 and 11. These results provide the first evidence for genetic loci involved in the immunological response to CLA in goat. Knowledge of genetic variations related to susceptibility will facilitate the incorporation of this information for the improvement of health status in the goat species.
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