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Quantitative genetic analysis of traits related to fear and feather pecking in laying hens

Vanessa Grams1, Stefanie Bögelein, Michael A Grashorn

  • 1Institute of Animal Husbandry and Breeding, University of Hohenheim, 70593, Stuttgart, Germany, vanessa.grams@uni-hohenheim.de.

Behavior Genetics
|December 11, 2014
PubMed

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In addition to multiple alleles at the same locus influencing traits, numerous genes or alleles at different locations may interact and influence phenotypes in a phenomenon called epistasis. For example, rabbit fur can be black or brown depending on whether the animal is homozygous dominant or heterozygous at a TYRP1 locus. However, if the rabbit is also homozygous recessive at a locus on the tyrosinase gene (TYR), it will have an unshaded coat that appears white, regardless of its TYRP1...
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