Figure 3

RFLP banding pattern revealed by hybridization with a partial tyrosinase cDNA probe. The partial cDNA probe included the total exon 5 region of chicken tyrosinase cDNA. This probe identified exactly the same restriction pattern as the total chicken tyrosinase cDNA probe. A simple Hind III digestion yielded 4.1 kb and 2.7 kb fragments in carriers of the recessive white or wild type allele at the C locus, respectively. A double digestion with Bam HI+Hind III enzymes yielded a 2.7 kb fragment in chickens carrying the normal allele C*N and a 1.8 kb fragment in chickens carrying the recessive white allele C*C.