关键词: TYR 基因, dw 基因, 分子辅助标记, 罗坑鸡

Abstract: To quickly find out the variety characteristics of the new resources of Luokeng chicken，in this study， molecular assisted marker technology involving recessive white⁃feathered （TYR）allele and Z⁃linked dw allele were performed. Consequently，46 heterozygous recessive white⁃feathered individuals were detected，the frequency of the heterozygous recessive white⁃feathered allele in the F0 and F1 generation were 11% and 13.67%，respectively and no Z⁃linked dw allele individual were detected across 356 samples. Altogether，the potential recessive white⁃feathered heterozygotes were totally eliminated within one generation，thus laying a foundation for the further genetic protection of Luokeng chicken.

Key words: TYR allele, dw allele, Molecular assisted marker, Luokeng chicken