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Genomic prediction from whole genome sequence in livestock: the 1000 bull genomes project
Genomic prediction from whole genome sequence in livestock: the 1000 bull genomes project
Thursday, August 21, 2014: 2:30 PM
Bayshore Grand Ballroom E-F (The Westin Bayshore)
Abstract Text: Advantages of using whole genome sequence data to predict genomic estimated breeding values (GEBV) include better persistence of accuracy of GEBV across generations and more accurate GEBV across breeds. The 1000 Bull Genomes Project provides a database of whole genome sequenced key ancestor bulls, for imputing sequence variant genotypes into reference sets for genomic prediction. Run 3.0 included 429 sequences, with 31.8 million variants detected. BayesRC, a new method for genomic prediction, addresses some challenges associated with using the sequence data, and takes advantage of biological information. In a dairy data set, predictions using BayesRC and imputed sequence data from 1000 Bull Genomes were 2% more accurate than with 800k data. We could demonstrate the method identified causal mutations in some cases. Further improvements will come from more accurate imputation of sequence variant genotypes and improved biological information.
Keywords: Genomic prediction, whole genome sequence, biological information