Application of TRPM1 gene SNP (Single Nucleotide Polymorphism) molecular marker in black-bone chicken molecular assisted breeding

The invention discloses an application of a TRPM1 gene SNP molecular marker in black-bone chicken skin black color molecule assisted breeding, the TRPM1 gene SNP molecular marker is located at the 6141871th site on the NC006097.4 chromosome 10 and is an A or G polymorphism, the site has three genotypes of AA, AG and GG in black-bone chicken, and the back skin brightness L * value of the GG genotype is significantly lower than that of the AA and AG genotypes. In breeding, the GG dominant allelotype can be used as an important molecular marker for breeding the back skin brightness L * value, breeding for improving the back skin black color degree is assisted by a method of selecting and remaining individuals with the GG genotype and eliminating other genotype individuals, and the back skin black color degree generation breeding progress is accelerated. 本发明公开了一种TRPM1基因SNP分子标记在乌骨鸡皮肤乌色度分子辅助育种中的应用，TRPM1基因SNP分子标记位于NC_006097.4染色体10上第6141871位，为A或G多态，该位点在乌骨鸡中存在AA、AG和GG三种基因型，其中GG基因型背部皮肤亮度L*值显著低于AA和AG基因型。在育种中可以将GG优势等位基因型