| 摘要 |
Disclosed is a method for identifying an animal having desirable marbling, as compared to the general population of animals of that species. The method comprises determining the presence of one or more nucleotide polymorphisms in a urocortin 3 (UCN3) gene of the animal, wherein the nucleotide polymorphism is indicative of desirable marbling; and sub-grouping animals according to genotype, wherein the animals of each sub-group have similar polymorphism in the urocortin 3 gene. The sub-grouping comprises: a) determining the genotype of each animal to be sub-grouped by determining the presence of a nucleotide polymorphism in the urocortin 3 gene and b) segregating individual animals into sub-groups depending on whether the animals have, or do not have, the nucleotide polymorphisms in the urocortin 3 gene, wherein the nucleotide polymorphism(s) is selected from the group consisting of AAFC03043460.1:g.8272-8281AATAATAAAT>GGAGC, g.8208C>T, g.8265C>T, g.8287T>C, g.8412A>G, g.8426T>A, C.8786C>T, g.9074T>C, c.12609C>T, c.12621T>C, c.12667T>G and C.12669C>A.
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