CSN1S1 Gene: Allele Frequency, and the Relationship with Milk Production Traits in Three Indigenous Cattle Breeds and Holstein

Authors

  • E.M. Prinzenberg Institute of Animal Breeding and Genetics, Justus Liebig, University, 35390, Giessen, Germany
  • G. Erhardt Institute of Animal Breeding and Genetics, Justus Liebig, University, 35390, Giessen, Germany
  • M. Reissmann Department for Crop and Animal Science, Faculty of Agriculture and Horticulture, Humboldt University Berlin, 10115, Berlin, Germany
  • P. Reinecke Department for Crop and Animal Science, Faculty of Agriculture and Horticulture, Humboldt University Berlin, 10115, Berlin, Germany
  • S. Zakizadeh Department of Animal Science, Higher Educational Complex of Jihad-e-Agriculture, Kalantari Highway, Mashhad, Iran
  • S.R. Miraei Ashtiani Department of Animal Science, Faculty of Agricultural Science, University of Tehran, Karaj, Iran
Abstract:

CSN1S1is one of the major genes encoding milk proteins of mammals. In this study we determined allele frequencies of CSN1S1-5` flanking region as well as exon 17 variants and their effects on milk traits in three indigenous cattle breeds Mazandarani, Golpaygani (Bos indicus) and Sarabi (Bos taurus) and Holstein cattle in Iran. CSN1S1*B variant was nearly fixed in Holstein but ranged from 0.40 to 0.66 in indigenous breeds. CSN1S1*C allele had higher frequency inindigenous breeds, especially inBos indicus. Four genetic variants of the promoter were found in all breeds in different frequencies with allele 2 being the prevalent in all breeds (frequency 0.359 to 0.711) and allele 4 the least frequent (0.074 to 0.011). Allele B of the coding region was found in combination with all four promoter alleles. Allele 4 of the promoter was not found in any cow having the exon 17 allele C in all breeds except Mazandarani. BC / 23 genotype yielded the highest fat percentage (P

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Journal title

volume 3  issue 3

pages  497- 502

publication date 2013-09-01

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