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Wu XL, Xu J, Li H, Ferretti R, He J, Qiu J, Xiao Q, Simpson B, Michell T, Kachman SD, Tait RG, Bauck S. Evaluation of genotyping concordance for commercial bovine SNP arrays using quality-assurance samples. Anim Genet 2019; 50:367-371. [PMID: 31172566 DOI: 10.1111/age.12800] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/16/2019] [Indexed: 11/29/2022]
Abstract
SNP arrays are widely used in genetic research and agricultural genomics applications, and the quality of SNP genotyping data is of paramount importance. In the present study, SNP genotyping concordance and discordance were evaluated for commercial bovine SNP arrays based on two types of quality assurance (QA) samples provided by Neogen GeneSeek. The genotyping discordance rates (GDRs) between chips were on average between 0.06% and 0.37% based on the QA type I data and between 0.05% and 0.15% based on the QA type II data. The average genotyping error rate (GER) pertaining to single SNP chips, based on the QA type II data, varied between 0.02% and 0.08% per SNP and between 0.01% and 0.06% per sample. These results indicate that genotyping concordance rate was high (i.e. from 99.63% to 99.99%). Nevertheless, mitochondrial and Y chromosome SNPs had considerably elevated GDRs and GERs compared to the SNPs on the 29 autosomes and X chromosome. The majority of genotyping errors resulted from single allotyping errors, which also included the opposite instances for allele 'dropout' (i.e. from AB to AA or BB). Simultaneous allotyping errors on both alleles (e.g. mistaking AA for BB or vice versa) were relatively rare. Finally, a list of SNPs with a GER greater than 1% is provided. Interpretation of association effects of these SNPs, for example in genome-wide association studies, needs to be taken with caution. The genotyping concordance information needs to be considered in the optimal design of future bovine SNP arrays.
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Affiliation(s)
- X-L Wu
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA.,Department of Animal Sciences, University of Wisconsin, Madison, WI, 53706, USA
| | - J Xu
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA.,Department of Statistics, University of Nebraska, Lincoln, NE, 68583, USA
| | - H Li
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA.,Department of Animal Sciences, University of Wisconsin, Madison, WI, 53706, USA
| | - R Ferretti
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA
| | - J He
- College of Animal Science and Technology, Hunan Agricultural University, Changsha, Hunan, 410128, China
| | - J Qiu
- Quality Assurance, Neogen GeneSeek, Lincoln, NE, 68504, USA
| | - Q Xiao
- Quality Assurance, Neogen GeneSeek, Lincoln, NE, 68504, USA
| | - B Simpson
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA
| | - T Michell
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA
| | - S D Kachman
- Department of Statistics, University of Nebraska, Lincoln, NE, 68583, USA
| | - R G Tait
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA
| | - S Bauck
- Bioinformatics and Biostatistics, Neogen GeneSeek, Lincoln, NE, 68504, USA
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Légaré J, Romaniuc A, Gould WTS, de Azevedo RC, Estall RO, Hutchinson B, Clarke JI, Michell T. Book Reviews. Population Studies 2017. [DOI: 10.1080/00324728.1981.11878520] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Légaré J, Romaniuc A, Gould WTS, de Azevedo RC, Estall RO, Hutchinson B, Clarke JI, Michell T. Book Reviews. Population Studies 1981. [DOI: 10.1080/00324728.1981.10404399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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