文献类型： 外文期刊
作者： Huang, Rongqin 3 ; Deng, Xianqi 3 ; Wu, Jingwen 3 ; Luo, Wen 1 ;
作者机构： 1.South China Agr Univ, State Key Lab Livestock & Poultry Breeding, Guangzhou 510642, Peoples R China
2.South China Agr Univ, Lingnan Guangdong Lab Agr, Guangzhou 510642, Peoples R China
3.South China Agr Univ, Coll Anim Sci, Dept Anim Genet Breeding & Reprod, Guangzhou 510642, Peoples R China
4.South China Agr Univ, Guangdong Prov Key Lab Agroanim Genom & Mol Breedi, Minist Agr & Rural Affair, Guangzhou 510642, Peoples R China
5.South China Agr Univ, Key Lab Chicken Genet Breeding & Reprod, Minist Agr & Rural Affair, Guangzhou 510642, Peoples R China
关键词： Yellow-feathered broilers; Skin yellowness; Lutein; molecular markers
期刊名称：POULTRY SCIENCE （ 影响因子：4.2； 五年影响因子：4.5 ）
ISSN： 0032-5791
年卷期： 2025 年 104 卷 1 期
页码：
收录情况： SCI
摘要： The degree of yellowness of the skin is an important factor affecting the market popularity and sales price of yellow-feathered broilers. Despite its commercial importance, the specific pigments and genetic mechanisms involved remain unclear. This study identified lutein as the primary carotenoid in the skin and established serum lutein concentration as a molecular marker for predicting skin yellowness in carcasses. Through RNA sequencing of broilers with varying yellowness, we identified key genes like CYP26A1, CYP1B1, CYP2C18, CYP2W1, HSD17B2, AOX1, KMO, PLIN1, and RET, which may regulate carotenoid absorption and deposition. Additionally, a single nucleotide polymorphism in the CYP1A1 gene was significantly associated with skin yellowness in MaHuang chickens. Overall, this study examined the primary pigment types that influence the skin yellowness of yellow-feathered broilers, emphasizing that lutein can serve as a molecular marker for skin yellowness and providing insights into the regulatory factors that regulate skin yellowness. These findings provide essential theoretical support for the breeding of skin color traits in yellow-feathered broilers.
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