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Iranian Journal of Biotechnology، جلد ۱۲، شماره ۱، صفحات ۵۶-۶۰
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عنوان انگلیسی Polymorphism of κ-Casein Gene in Iranian Holsteins
چکیده انگلیسی مقاله Background: Genetic polymorphism of milk proteins has been associated with composition, manufacture, and traits of milk. Caseins are the most important milk proteins whose genes are strongly linked and inherited as a raceme. κ-casein which is a quantitatively minor constituent of bovine milk is thought to play a critical role in organization, fixation and aggregation of casein micelles and firmness of curd during cheese making. Objectives: In this study, we considered polymorphism of κ-casein gene in Iranian Holstein cows. Materials and Method: In this study, κ-casein gene polymorphism among 50 DNA samples of Iranian Holstein cows via Polymerase Chain Reaction sequence analysis (PCR-Sequencing) was considered. For data analysis SPSS 11.5 (ANOVA test) was used. Results: Four polymorphic sites that created 4 variants and seven different genotypes of κ-casein gene were identified. In this population the frequencies of A, B, C, and E alleles were estimated as 0.391, 0.413, 0.087, and 0.109 respectively. Conclusion: We suggested that the B allele of κ-casein gene frequency should be increased in Iranian Holsteins because it has an essential factor in marker-assisted selection for milk traits.
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نویسندگان مقاله زهرا مولوی چوبینی | molavi choobini
research and technology deputy, university of shahrekord medical sciences, shahrekord, i.r. iran

محمد شادخواست |
department of basic sciences, school of veterinary medicine, university of shahrekord, shahrekord, i.r. iran

حمداله مشتاقی |
department of food hygiene and quality control, school of veterinary medicine, university of shahrekord, shahrekord, i.r. iran

سعید حبیبیان دهکردی | habibian dehkordi
department of basic sciences, school of veterinary medicine, university of shahrekord, shahrekord, i.r. iran

همایون رضا shahbazkia | homayon reza
department of basic sciences, school of veterinary medicine, university of shahrekord, shahrekord, i.r. iran

نشانی اینترنتی http://www.ijbiotech.com/article_7259_3d02b52cd35dc50bdc6ed508c49e1e36.pdf
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