Haplotypes for Type, Degree, and Rate of Marbling in Cattle Are Syntenic with Human Muscular Dystrophy

Table 2

Higher marble score in F1 and F2 Wagyu with Wagyu-specific haplotypes compared to Bos indicus-specific haplotypes.

	Average MS	N	SEM
Bos indicus haplotypes	4.2	6	0.54
Wagyu haplotypes	5.3	22	0.22

Crossbred and pure bred Wagyu fed for 450 days marbling assessed visually between the 10th and 11th rib, using the AUS-Meat marble scale. Breeds of dams include Brahman, Shorthorn, and Angus. Haplotypes were determined for SREB to TCAP markers by a combination of pedigree analysis, homozygosity, and breed-based haplotype frequencies. Haplotypes classified as Wagyu specific were 60.10.S.10, 30.20.S.20, and 30.10.S.20 with frequencies in Wagyu shown in Figure 4(b). Haplotypes classified as Bos indicus specific were those with MRIP > 60 or NT5M > 22. For simplicity, animals with neither a Bos indicus-specific nor a Wagyu-specific haplotype have been excluded from the table.