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Molecular genetics for livestock improvement – brave new world or false dawn?

Published online by Cambridge University Press:  23 November 2017

M.E. Goddard*
Affiliation:
University of Melbourne, Melbourne, Australia
B. Hayes
Affiliation:
University of Melbourne, Melbourne, Australia
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Extract

Genetic improvement of livestock is largely the result of selection based on estimated breeding values (EBVs) calculated from data on phenotypes and pedigrees. This technology has been very successful without using data on the individual genes responsible for genetic variation. For several years experiments have mapped genes affecting economic traits or quantitative trait loci (QTL) to chromosomal regions using genetic markers. Unfortunately this information has not lead to a substantial increase in the rate of genetic improvement.

Type
Invited Papers
Copyright
Copyright © The British Society of Animal Science 2008

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References

Meuwissen, T. H. E., Hayes, B. J. and Goddard, M. E. 2001. Prediction of total genetic value using genome-wide dense marker maps. Genetics 157, 1819–1829.CrossRefGoogle ScholarPubMed