Frequencies of the 1.3 kb deletion in different horse breeds.

a ins = long variant corresponding to the genomic reference NC_009146.2; del = short variant encompassing the 1,339 bp deletion spanning two coding exons.b A synthetic cross involving German Riding Pony, Haflinger Horse, Connemara Pony and New Forrest Pony; bred for milk yield.c The frequency in Fjord horses is not reported with respect to the small sample size, but the breed is included in the total values.Frequencies of the 1.3 kb deletion in different horse breeds.