Projects per year
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.
|Title of host publication||Proceedings of the 11th World Congress on Genetics Applied to Livestock Production|
|Subtitle of host publication||Volume Genetic Gain - Breeding Strategies 2|
|Number of pages||5|
|Publication status||Published - 1 Feb 2018|
|Event||World Congress on Genetics Applied to Livestock Production (2018) - Auckland, New Zealand|
Duration: 11 Feb 2018 → 16 Feb 2018
|Conference||World Congress on Genetics Applied to Livestock Production (2018)|
|Abbreviated title||WCGALP 2018|
|Period||11/02/18 → 16/02/18|
FingerprintDive into the research topics of 'Increasing genetic gain by selecting for higher Mendelian sampling variance'. Together they form a unique fingerprint.
1/01/13 → …
AF-16022 Breed4Food II (BO-63-001-009, BO-47-001-021, BO-22.04-025-001, BO-22.04-011-001, BO-22.02-011-001)
1/01/14 → 31/12/21