| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Gado de Leite. |
|
Data corrente: |
15/02/2016 |
|
Data da última atualização: |
06/02/2024 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
BOISON, S. A.; SANTOS, D. J. A.; UTSONOMIYA, A. H. T.; CARVALHEIRO, R.; NEVES, H. H. R.; O'BRIEN, A. M. P.; GARCIA, J. F.; SÖLKNER, J.; SILVA, M. V. G. B. |
|
Afiliação: |
S. A. Boison, University of Natural Resources and Life Sciences, Vienna, Austria; D. J. A. Santos, UNESP; A. H. T. Utsunomiya, UNESP; R. Carvalheiro, UNESP; H. H. R. Neves, UNESP; A. M. Perez O'Brien, University of Natural Resources and Life Sciences, Vienna, Aústria; J. F. Garcia, UNESP; J. Sölkner, University of Natural Resources and Life Sciences, Vienna, Aústria; MARCOS VINICIUS GUALBERTO B SILVA, CNPGL. |
|
Título: |
Strategies for single nucleotide polymorphism (SNP) genotyping to enhance genotype imputation in Gyr (Bos indicus) dairy cattle: Comparison of commercially available SNP chips. |
|
Ano de publicação: |
2015 |
|
Fonte/Imprenta: |
Journal of Dairy Science, v. 98, n. 7, p. 4969-4989, 2015. |
|
Idioma: |
Português |
|
Conteúdo: |
Genotype imputation is widely used as a cost-effective strategy in genomic evaluation of cattle. Key determinants of imputation accuracies, such as linkage disequilibrium patterns, marker densities, and ascertainment bias, differ between Bos indicus and Bos taurus breeds. Consequently, there is a need to investigate effectiveness of genotype imputation in indicine breeds. Thus, the objective of the study was to investigate strategies and factors affecting the accuracy of genotype imputation in Gyr (Bos indicus) dairy cattle. Four imputation scenarios were studied using 471 sires and 1,644 dams genotyped on Illumina BovineHD (HD-777K; San Diego, CA) and BovineSNP50 (50K) chips, respectively. Scenarios were based on which reference high-density single nucleotide polymorphism (SNP) panel (HDP) should be adopted [HD-777K, 50K, and GeneSeek GGP-75Ki (Lincoln, NE)]. Depending on the scenario, validation animals had their genotypes masked for one of the lower-density panels: Illumina (3K, 7K, and 50K) and GeneSeek (SGGP-20Ki and GGP-75Ki). We randomly selected 171 sires as reference and 300 as validation for all the scenarios. Additionally, all sires were used as reference and the 1,644 dams were imputed for validation. Genotypes of 98 individuals with 4 and more offspring were completely masked and imputed. Imputation algorithms FImpute and Beagle v3.3 and v4 were used. Imputation accuracies were measured using the correlation and allelic correct rate. FImpute resulted in highest accuracies, whereas Beagle 3.3 gave the least-accurate imputations. Accuracies evaluated as correlation (allelic correct rate) ranged from 0.910 (0.942) to 0.961 (0.974) using 50K as HDP and with 3K (7K) as low-density panels. With GGP-75Ki as HDP, accuracies were moderate for 3K, 7K, and 50K, but high for SGGP-20Ki. The use of HD-777K as HDP resulted in accuracies of 0.888 (3K), 0.941 (7K), 0.980 (SGGP-20Ki), 0.982 (50K), and 0.993 (GGP-75Ki). Ungenotyped individuals were imputed with an average accuracy of 0.970. The average top 5 kinship coefficients between reference and imputed individuals was a strong predictor of imputation accuracy. FImpute was faster and used less memory than Beagle v4. Beagle v4 outperformed Beagle v3.3 in accuracy and speed of computation. A genotyping strategy that uses the HD-777K SNP chip as a reference panel and SGGP-20Ki as the lower-density SNP panel should be adopted as accuracy was high and similar to that of the 50K. However, the effect of using imputed HD-777K genotypes from the SGGP-20Ki on genomic evaluation is yet to be studied. MenosGenotype imputation is widely used as a cost-effective strategy in genomic evaluation of cattle. Key determinants of imputation accuracies, such as linkage disequilibrium patterns, marker densities, and ascertainment bias, differ between Bos indicus and Bos taurus breeds. Consequently, there is a need to investigate effectiveness of genotype imputation in indicine breeds. Thus, the objective of the study was to investigate strategies and factors affecting the accuracy of genotype imputation in Gyr (Bos indicus) dairy cattle. Four imputation scenarios were studied using 471 sires and 1,644 dams genotyped on Illumina BovineHD (HD-777K; San Diego, CA) and BovineSNP50 (50K) chips, respectively. Scenarios were based on which reference high-density single nucleotide polymorphism (SNP) panel (HDP) should be adopted [HD-777K, 50K, and GeneSeek GGP-75Ki (Lincoln, NE)]. Depending on the scenario, validation animals had their genotypes masked for one of the lower-density panels: Illumina (3K, 7K, and 50K) and GeneSeek (SGGP-20Ki and GGP-75Ki). We randomly selected 171 sires as reference and 300 as validation for all the scenarios. Additionally, all sires were used as reference and the 1,644 dams were imputed for validation. Genotypes of 98 individuals with 4 and more offspring were completely masked and imputed. Imputation algorithms FImpute and Beagle v3.3 and v4 were used. Imputation accuracies were measured using the correlation and allelic correct rate. FImpute resulted in highest ... Mostrar Tudo |
|
Palavras-Chave: |
FImpute; Gyr; Imputation. |
|
Thesaurus Nal: |
Beagle. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/138978/1/Cnpgl-2015-JDairySci-Strategies.pdf
|
|
Marc: |
LEADER 03421naa a2200265 a 4500
001 2036928
005 2024-02-06
008 2015 bl uuuu u00u1 u #d
100 1 $aBOISON, S. A.
245 $aStrategies for single nucleotide polymorphism (SNP) genotyping to enhance genotype imputation in Gyr (Bos indicus) dairy cattle$bComparison of commercially available SNP chips.$h[electronic resource]
260 $c2015
520 $aGenotype imputation is widely used as a cost-effective strategy in genomic evaluation of cattle. Key determinants of imputation accuracies, such as linkage disequilibrium patterns, marker densities, and ascertainment bias, differ between Bos indicus and Bos taurus breeds. Consequently, there is a need to investigate effectiveness of genotype imputation in indicine breeds. Thus, the objective of the study was to investigate strategies and factors affecting the accuracy of genotype imputation in Gyr (Bos indicus) dairy cattle. Four imputation scenarios were studied using 471 sires and 1,644 dams genotyped on Illumina BovineHD (HD-777K; San Diego, CA) and BovineSNP50 (50K) chips, respectively. Scenarios were based on which reference high-density single nucleotide polymorphism (SNP) panel (HDP) should be adopted [HD-777K, 50K, and GeneSeek GGP-75Ki (Lincoln, NE)]. Depending on the scenario, validation animals had their genotypes masked for one of the lower-density panels: Illumina (3K, 7K, and 50K) and GeneSeek (SGGP-20Ki and GGP-75Ki). We randomly selected 171 sires as reference and 300 as validation for all the scenarios. Additionally, all sires were used as reference and the 1,644 dams were imputed for validation. Genotypes of 98 individuals with 4 and more offspring were completely masked and imputed. Imputation algorithms FImpute and Beagle v3.3 and v4 were used. Imputation accuracies were measured using the correlation and allelic correct rate. FImpute resulted in highest accuracies, whereas Beagle 3.3 gave the least-accurate imputations. Accuracies evaluated as correlation (allelic correct rate) ranged from 0.910 (0.942) to 0.961 (0.974) using 50K as HDP and with 3K (7K) as low-density panels. With GGP-75Ki as HDP, accuracies were moderate for 3K, 7K, and 50K, but high for SGGP-20Ki. The use of HD-777K as HDP resulted in accuracies of 0.888 (3K), 0.941 (7K), 0.980 (SGGP-20Ki), 0.982 (50K), and 0.993 (GGP-75Ki). Ungenotyped individuals were imputed with an average accuracy of 0.970. The average top 5 kinship coefficients between reference and imputed individuals was a strong predictor of imputation accuracy. FImpute was faster and used less memory than Beagle v4. Beagle v4 outperformed Beagle v3.3 in accuracy and speed of computation. A genotyping strategy that uses the HD-777K SNP chip as a reference panel and SGGP-20Ki as the lower-density SNP panel should be adopted as accuracy was high and similar to that of the 50K. However, the effect of using imputed HD-777K genotypes from the SGGP-20Ki on genomic evaluation is yet to be studied.
650 $aBeagle
653 $aFImpute
653 $aGyr
653 $aImputation
700 1 $aSANTOS, D. J. A.
700 1 $aUTSONOMIYA, A. H. T.
700 1 $aCARVALHEIRO, R.
700 1 $aNEVES, H. H. R.
700 1 $aO'BRIEN, A. M. P.
700 1 $aGARCIA, J. F.
700 1 $aSÖLKNER, J.
700 1 $aSILVA, M. V. G. B.
773 $tJournal of Dairy Science$gv. 98, n. 7, p. 4969-4989, 2015.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Gado de Leite (CNPGL) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Semiárido. |
|
Data corrente: |
19/10/2011 |
|
Data da última atualização: |
02/03/2023 |
|
Tipo da produção científica: |
Artigo em Anais de Congresso |
|
Autoria: |
NOGUEIRA, E. S.; DIAS, F. S.; SANTOS, B. R. C. dos; GALVÃO, S. R. da S.; MENDES, A. M. S.; GIONGO, V. |
|
Afiliação: |
EDNAILSON SILVA NOGUEIRA; FRANCISCO SANTANA DIAS; BETINA RAQUEL CUNHA DOS SANTOS, Bolsista Facepe; SANDRA REGINA DA SILVA GALVÃO; ALESSANDRA MONTEIRO SALVIANO MENDES, CPATSA; VANDERLISE GIONGO, CPATSA. |
|
Título: |
Morfogênese em Capim-buffel cvs. Biloela e Pusa Giant submetidos à adubação fosfatada no Semiárido. |
|
Ano de publicação: |
2011 |
|
Fonte/Imprenta: |
In: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. Uberlândia: SBCS: UFU: ICIAG, 2011. |
|
Descrição Física: |
1 CD-ROM. |
|
Idioma: |
Português |
|
Conteúdo: |
O objetivo deste estudo determinar em casa de vegetação características estruturais de Cenchrus ciliaris L., cultivares Biloela e Pusa Giant, submetidos às doses crescentes de fósforo. |
|
Palavras-Chave: |
Adubação fosfatada; Biloela; Casa de vegetação; Cultivar; Pusa Giant. |
|
Thesagro: |
Capim Buffel; Cenchrus ciliaris; Gramínea Forrageira; Pastagem. |
|
Thesaurus NAL: |
Pastures. |
|
Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/43788/1/Vanderlise7.PDF
|
|
Marc: |
LEADER 01169nam a2200301 a 4500
001 1903438
005 2023-03-02
008 2011 bl uuuu u00u1 u #d
100 1 $aNOGUEIRA, E. S.
245 $aMorfogênese em Capim-buffel cvs. Biloela e Pusa Giant submetidos à adubação fosfatada no Semiárido.
260 $aIn: CONGRESSO BRASILEIRO DE CIÊNCIA DO SOLO, 33., 2011, Uberlândia. Solos nos biomas brasileiros: sustentabilidade e mudanças climáticas: anais. Uberlândia: SBCS: UFU: ICIAG$c2011
300 $c1 CD-ROM.
520 $aO objetivo deste estudo determinar em casa de vegetação características estruturais de Cenchrus ciliaris L., cultivares Biloela e Pusa Giant, submetidos às doses crescentes de fósforo.
650 $aPastures
650 $aCapim Buffel
650 $aCenchrus ciliaris
650 $aGramínea Forrageira
650 $aPastagem
653 $aAdubação fosfatada
653 $aBiloela
653 $aCasa de vegetação
653 $aCultivar
653 $aPusa Giant
700 1 $aDIAS, F. S.
700 1 $aSANTOS, B. R. C. dos
700 1 $aGALVÃO, S. R. da S.
700 1 $aMENDES, A. M. S.
700 1 $aGIONGO, V.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Semiárido (CPATSA) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Expressão de busca inválida. Verifique!!! |
|
|
