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Physiological genetics, its relationship with classical quantitative and molecular genetics

Published online by Cambridge University Press:  20 November 2017

P. Løvendahl*
Affiliation:
Department of Animal Breeding and Genetics, Danish Institute of Agricultural Sciences, Research Centre Foulum, DK8830 Tjele, Denmark
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Extract

Genetic variation in physiological regulation has been studied in humans to explain disposition to hereditary metabolic diseases, such as diabetes, dwarfism and acromegaly. In farm animals the aim of such studies has more often focused on understanding individual variation with a view to develop physiologically based indicator traits that could help speed up genetic improvement programmes. To be efficient, any indicator trait needs to be measurable both early in life and in animals of both sexes. The advent of molecular or DNA based genetic markers has presented us with an alternative set of indicator traits. These may be seen both as competitive traits and as traits, which can be used in combination with physiological indicators.

Type
ISAE/BSAS
Copyright
Copyright © The British Society of Animal Science 2003

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