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Assessing signatures of selection through variation in linkage disequilibrium between taurine and indicine cattle. Repositório Alice
O'BRIEN, A. M. P.; UTSUNOMIYA, Y. T.; MÉSZÁROS, G.; BICKHART, D. M.; LIU, G. E.; TASSEL, C. P. V.; SONSTEGARD, T. S.; SILVA, M. V. G. B.; GARCIA, J. F.; SÖLKNER, J..
Signatures of selection are regions in the genome that have been preferentially increased in frequency and fixed in a population because of their functional importance in specific processes. These regions can be detected because of their lower genetic variability and specific regional linkage disequilibrium (LD) patterns. By comparing the differences in regional LD variation between dairy and beef cattle types, and between indicine and taurine subspecies, we aim at finding signatures of selection for production and adaptation in cattle breeds. The VarLD method was applied to compare the LD variation in the autosomal genome between breeds, including Angus and Brown Swiss, representing taurine breeds, and Nelore and Gir, representing indicine breeds. The...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Cattle - genetic improvement; Indicine; Linkage disequilibrium; Minor allele frequency; Taurine.
Ano: 2014 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1006605
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Genomic analysis for managing small and endangered populations: a case study in Tyrol Grey cattle. Repositório Alice
MÉSZÁROS, G.; BOISON, S. A.; O'BRIEN, A. M. P.; FERENCAKOVIC, M.; CURIK, I.; SILVA, M. V. G. B.; UTSONOMIYA, Y. T.; GARCIA, J. F.; SÖLKNER, J..
Analysis of genomic data is increasingly becoming part of the livestock industry. Therefore, the routine collection of genomic information would be an invaluable resource for effective management of breeding programs in small, endangered populations. The objective of the paper was to demonstrate how genomic data could be used to analyse (1) linkage disequlibrium (LD), LD decay and the effective population size (NeLD); (2) Inbreeding level and effective population size (NeROH) based on runs of homozygosity (ROH); (3) Prediction of genomic breeding values (GEBV) using small within-breed and genomic information from other breeds. The Tyrol Grey population was used as an example, with the goal to highlight the potential of genomic analyses for small breeds. In...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: SNP chip; Breed management; Endangered breeds; Genomic selection; Linkage disequilibrium; Runs of homozygosity.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1037600
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Low levels of taurine introgression in the current Brazilian Nelore and Gir indicine cattle populations. Repositório Alice
O'BRIEN, A. M. P.; HÖLLER, D.; BOISON, S. A.; MILANESI, M.; BOMBA, L.; UTSUNOMIYA, Y. T.; CARVALHEIRO, R.; NEVES, H. H. R.; SILVA, M. V. G. B.; VAN TASSEL, C. P.; SOSTENGARD, T. S.; MÉSZÁROS, G.; AJMONE-MARSAN, P.; GARCIA, J. F.; SÖLKNER, J..
2015
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Bovine reproduction.
Ano: 2015 URL: http://www.alice.cnptia.embrapa.br/handle/doc/1017843
Registros recuperados: 3
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