Cited by 124Genetic and phenotypic traits in livestockGenetic Mapping and Diversity in Plants and AnimalsMilk Quality and Mastitis in Dairy Cows

DGAT1 polymorphism in Bos indicus and Bos taurus cattle breeds

Kaupe, Bernhard, Winter, Andreas, Fries, Ruedi, Erhardt, Georg·2004·Journal of Dairy Research

Abstract

As a result of multiple QTL-mapping projects in recent years, a quantitative trait locus for milk fat percentage and milk yield has been described on BTA14. Recent reports name the acyl-CoA : diacylglycerol acyltransferase (DGAT1) gene on BTA14 as a potential candidate gene, with a nonconservative substitution of lysine by alanine (K232A) producing a major effect on milk composition and yield. DGAT1K appears to be the ancestral allele and the K232A substitution probably occurred after the divergence of the Bos indicus and Bos taurus lineages. These findings prompted us to genotype 1748 DNA samples of 38 different Bos taurus and Bos indicus cattle breeds from 13 countries on five continents (Europe, Africa, Asia, North America and South America), to examine the occurrence of the DGAT1 polymorphism and characterize the K232A substitution in cattle breeds of different origins and selected for different purposes (e.g., beef, dairy and dual purpose). Calculating pairwise FST values for pooled subpopulations showed least divergence for Bos indicus breeds with high milk fat percentage. Fixation of DGAT1A was found in some Bos taurus breeds and fixation of DGAT1K in one Bos indicus breed. Breeds of no known organized breeding background from the Near East domestication centre of Bos taurus and taurine African N'Dama cattle were found to possess intermediate frequencies of DGAT1K. While beef breeds tended to harbour higher DGAT1A levels, dairy cattle showed everything from very low levels of DGAT1K to unexpectedly high frequencies of this allele.

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Crossref · 10.1017/s0022029904000032

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  • Taurine breeds carry a high frequency of the DGAT1 A haplotype, while zebu breeds possess a high proportion of the K haplotype.

    “Haplotype analysis has shown that taurine breeds carry a high frequency of the DGAT1 A haplotype, while zebu breeds possess a high proportion of the K haplotype [154,155].”

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Authors
Kaupe, B., Winter, A., Fries, R., & Erhardt, G.
Affiliations
  • Justus-Liebig-Universität Gießen (DE)
  • Technical University of Munich (DE)
Venue
Journal of Dairy Research
Published
2004-05
Volume
71
Issue
2
Pages
182-187
ISSN
  • 0022-0299 (ISSN-L)
  • 1469-7629
OpenAlex
W2019561793
Cited by
124
References
26
Citations by year
2026: 2 · 2024: 3 · 2023: 3 · 2022: 4 · 2021: 3 · 2020: 5 · 2019: 3 · 2018: 5 · 2017: 5 · 2016: 2 · 2015: 10 · 2014: 10 · 2013: 9 · 2012: 8
FWCI
3.71
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Dairy Research (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic and phenotypic traits in livestock
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Genetics › Genetic Mapping and Diversity in Plants and Animals
  • Life Sciences › Agricultural and Biological Sciences › Agronomy and Crop Science › Milk Quality and Mastitis in Dairy Cows
Keywords
DGAT1, acyl-CoA:diacylglycerol acyltransferase, K232A polymorphism, Bos indicus, cattle, cattle breeds, milk fat content, milk yield, BTA14, quantitative trait loci, allele frequency, FST, N'Dama cattle, beef cattle, dairy cattle, dual-purpose cattle
MeSH terms
Acyltransferases, Alleles, Animals, Breeding, Cattle, Gene Frequency, Polymorphism, Genetic, Polymorphism, Restriction Fragment Length, Species Specificity, Genetic Variation, Polymerase Chain Reaction, Diacylglycerol O-Acyltransferase

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