Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 549368
Title Increasing genetic gain by selecting for higher Mendelian sampling variance
Author(s) Bijma, P.; Wientjes, Y.C.J.; Calus, M.P.L.
Source In: Proceedings of the 11th World Congress on Genetics Applied to Livestock Production. - WCGALP - 5 p.
Event World Congress on Genetics Applied to Livestock Production, Auckland, 2018-02-11/2018-02-16
Department(s) WIAS
Animal Breeding and Genomics
Publication type Contribution in proceedings
Publication year 2018
Abstract Because of linkage and variation in heterozygosity, individuals differ in the Mendelian sampling variance on their gametes. Thus some parents produce genetically more variable offspring than others. With genomic EBV and phased genotypes, these differences can be quantified and potentially used to increase genetic gain. Here we show that genetic gain and the probability of breeding a top-ranking individual can be increased by selecting individuals on an index of their GEBV and the standard deviation on the GEBV of their gametes (SDGEBV). The optimum index was , where is the standardized truncation point belonging to the selected proportion p. Compared to selection on ordinary GEBV, in dairy cattle the probability of breeding a top-ranking individual can be increased by 36%, and response to selection by 3.6% when selection is strong (p = 0.001). Preselection on GEBV facilitates implementation with little loss of gain.
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