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Marker-assisted selection using ridge regression

  • JOHN C. WHITTAKER (a1), ROBIN THOMPSON (a2) and MIKE C. DENHAM (a1)

Abstract

In crosses between inbred lines, linear regression can be used to estimate the correlation of markers with a trait of interest; these marker effects then allow marker assisted selection (MAS) for quantitative traits. Usually a subset of markers to include in the model must be selected: no completely satisfactory method of doing this exists. We show that replacing this selection of markers by ridge regression can improve the mean response to selection and reduce the variability of selection response.

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Copyright

Corresponding author

Corresponding author. Tel: +44 (0)118 9318023. e-mail: j.c.whittaker@reading.ac.uk

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