Relationships Between Single Nucleotide Polymorphisms of the H-FABP Gene and Slaughter and Meat Quality Traits in Chicken |
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Authors: | Xiaoyan You Yiping Liu Xiaosong Jiang Huarui Du Zuohua Liu Qing Zhu |
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Affiliation: | 1. College of Animal Science and Technology, Sichuan Agriculture University, Ya’an, Sichuan, 625014, China 2. Chongqing Academy of Animal Sciences, Rongchang, Chongqing, 402460, China 3. Sichuan Academy of Animal Science, Chengdu, Sichuan, 610066, China 4. Sichuan Dahen Poultry Breeding Company, Chengdu, Sichuan, 610066, China
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Abstract: | Using PCR-SSCP with five primer pairs, we detected six single nucleotide polymorphisms of the H-FABP gene: 332G → A, 534G → A, 783C → T, 835C → T, 1198T → C, and 2329C → T. Chi-square results showed significant differences (P < 0.05) in genotype frequency among breeds in Fragment 1 and extremely significant differences (P < 0.01) in Fragments 2–4. We found a significant association between Fragment 2 genotype and muscle fiber number, Arg and Thr (P < 0.05); between Fragment 3 genotype and living weight, carcass weight, breast muscle weight, abdominal fat weight, and abdominal fat percentage (P < 0.05); between Fragment 4 genotype and Thr, Phe, and inosinic acid (P < 0.05). It was concluded that H-FABP was the major gene influencing slaughter performance and meat quality or was linked with the major gene in these strains and that the C783T mutation could be used as a candidate molecular genetic marker for breeding selection. The combination M1C2–B2B2–D1D1 is an ideal model for breeding in these strains because it can improve slaughter and meat quality traits. |
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