Journal article
An independent confirmation of a quantitative trait locus for milk yield and composition traits on bovine chromosome 26
Journal of animal breeding and genetics (1986), Vol.122(4), pp.281-284
08/2005
Handle:
https://hdl.handle.net/2376/104321
PMID: 16060496
Abstract
Several reports have demonstrated that bovine chromosome 26 (BTA26) harbours significant or suggestive quantitative trait loci (QTL) for milk production and composition traits in dairy cattle. Our previous study showed that a C/T substitution in the bovine TCF7L2 gene on BTA26 was significantly linked to QTL for protein yield (PY) in a Canadian dairy cattle population. Actually, this polymorphism was one of the markers derived from a genome-wide screening of QTL for milk PY using an amplified fragment length polymorphism technique combined with a DNA pooling strategy. In the present study, 990 Holstein bulls with complete genotype and phenotype data from 14 sire families were analysed to confirm, if the QTL effects exist in other populations. Statistical analysis revealed that this marker was significantly associated with PY, protein percentage, milk yield and fat yield (FY) (p < 0.001) in the US Holstein population. These results indicate that this QTL region has a pleiotrophic effecton different milk traits and is portable in different populations.
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Details
- Title
- An independent confirmation of a quantitative trait locus for milk yield and composition traits on bovine chromosome 26
- Creators
- Z Jiang - Department of Animal Sciences, Washington State University, Pullman, WA 99164-6351, USA. jiangz@wsu.eduS DeM D GarciaK B GriffinX L WuQ XiaoJ J MichalB S SharmaG B Jansen
- Publication Details
- Journal of animal breeding and genetics (1986), Vol.122(4), pp.281-284
- Academic Unit
- Animal Sciences, Department of
- Publisher
- Germany
- Identifiers
- 99900546560801842
- Language
- English
- Resource Type
- Journal article