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CLC number: Q78; TP31

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Received: 2007-09-20

Revision Accepted: 2007-09-28

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Journal of Zhejiang University SCIENCE B 2007 Vol.8 No.11 P.782-786

http://doi.org/10.1631/jzus.2007.B0782


Using genetic markers in unpedigreed populations to detect a heritable trait


Author(s):  DODDS Ken G., AMER Peter R., AUVRAY Benoî,t

Affiliation(s):  Applied Biotechnologies Group, AgResearch Limited, Invermay Research Centre, Private Bag 50034, Mosgiel 9053, New Zealand; more

Corresponding email(s):   ken.dodds@agresearch.co.nz

Key Words:  Relatedness, Genetic markers, Heritable trait


DODDS Ken G., AMER Peter R., AUVRAY Benoît. Using genetic markers in unpedigreed populations to detect a heritable trait[J]. Journal of Zhejiang University Science B, 2007, 8(11): 782-786.

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Abstract: 
Before a breeder invests selection pressure on a trait of interest, it needs to be established whether that trait is actually heritable. Some traits may not have been measured widely in pedigreed populations, for example, a disease or deformity may become more prevalent than previously, but is still relatively rare. One approach to detect inheritance would be to screen a commercial population to obtain a sample of “affecteds” (the test group) and to also obtain a random control group. These individuals are then genotyped with a set of genetic markers and the relationships between individuals within each group estimated. If the relatedness is higher in the test group than in the control group, this provides initial evidence for the trait being heritable. A power simulation shows that this approach is feasible with moderate resources.

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

Reference

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