DGAT1 K232A quantitative trait nucleotide polymorphism in Polish Black-and-White cattle

• Authors: C.S. Pareek , U. Czarnik , T. Zabolewicz , R.S. Pareek , K. Walawski
• Languages of publication: EN

Abstracts

EN

The diacylglycerol o-acyltransferase 1 gene (DGAT1) was investigated in Polish Black-and-White cattle. The frequency of the K allele was 0.60, 0.68 and 0.48 for AI sires (n = 150), young bulls (n = 139) and cows (n = 213), respectively. The method of selective genotyping for identification of the quantitative trait nucleotide was verified through identification of DGAT1 effect on milk production traits. Daughters of six heterozygous bulls were selectively genotyped based on their milk traits. The genotypic frequencies differed between high and low yield groups representing milk and fat contents. The Kruskal-Wallis test revealed a highly significant effect of DGAT1 K232A in cows with extremely low fat content and a significant effect in cows with extremely high protein content of milk. No significant effect of AI sires' genotypes on their breeding value was found.

Keywords

EN

BLACK-AND-WHITE CATTLE; MILK PRODUCTION; NUCLEOTIDE POLYMORPHISM; QUANTITATIVE TRAIT

Discipline

• GENETICS: GENETICS

• Publisher: Institute of Plant Genetics, Polish Academy of Sciences
• Journal: Journal of Applied Genetics
• Year: 2005
• Volume: 46
• Issue: 1
• Pages: 85-87

Contributors

author

C.S. Pareek

author

U. Czarnik

author

T. Zabolewicz

author

R.S. Pareek

author

K. Walawski

• Document Type: SHORT COMMUNICA
• Publication order reference: C.S. Pareek, Dept. of Animal Genetics, Faculty of Animal Bio-engineering, University of Warmia and Mazury, ul. Oczapowskiego 5, Olsztyn 10-718, Poland