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| MUDADU, M. de A.; PORTO NETO, L. R.; MOKRY, F. B.; TIZIOTO, P. C.; OLIVEIRA, P. S. N. de; TULLIO, R. R.; NASSU, R. T.; NICIURA, S. C. M.; THOLON, P.; ALENCAR, M. M. de; HIGA, R. H.; ROSA, A. do N.; FEIJO, G. L. D.; FERRAZ, A. L. J.; SILVA, L. O. C. da; MEDEIROS, S. R. de; LANNA, D. P. D.; NASCIMENTO, M. L. do; CHAVES, A. S.; SOUZA, A. R. D. L.; PACKER, I. U.; TORRES JUNIOR, R. A. de A.; SIQUEIRA, F.; MOURAO, G. B.; COUTINHO, L. L.; REVERTER, A.; REGITANO, L. C. de A.. |
| Tipo: Artigo de periódico |
Palavras-chave: Erratum; Beef cattle; Meat quality. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1065244 |
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| MUDADU, M. de A.; PORTO NETO, L. R.; MOKRY, F. B.; TIZIOTO, P. C.; OLIVEIRA, P. S. N. de; TULLIO, R. R.; NASSU, R. T.; NICIURA, S. C. M.; THOLON, P.; ALENCAR, M. M. de; HIGA, R. H.; ROSA, A. do N.; FEIJO, G. L. D.; FERRAZ, A. L. J.; SILVA, L. O. C. da; MEDEIROS, S. R. de; LANNA, D. P. D.; NASCIMENTO, M. L. do; CHAVES, A. S.; SOUZA, A. R. D. L.; PACKER, I. U.; TORRES JUNIOR, R. A. de A.; SIQUEIRA, F.; MOURAO, G. B.; COUTINHO, L. L.; REVERTER, A.; REGITANO, L. C. de A.. |
| Nelore is the major beef cattle breed in Brazil with more than 130 million heads. Genome-wide association studies (GWAS) are often used to associate markers and genomic regions to growth and meat quality traits that can be used to assist selection programs. An alternative methodology to traditional GWAS that involves the construction of gene network interactions, derived from results of several GWAS is the AWM (Association Weight Matrices)/PCIT (Partial Correlation and Information Theory). With the aim of evaluating the genetic architecture of Brazilian Nelore cattle, we used high-density SNP genotyping data (~770,000 SNP) from 780 Nelore animals comprising 34 half-sibling families derived from highly disseminated and unrelated sires from across Brazil.... |
| Tipo: Artigo de periódico |
Palavras-chave: AWM; PCIT; GWAS; Genotyping. |
| Ano: 2016 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1053714 |
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| GRISOLIA, A. B.; D´ANGELO, G. T.; PORTO NETO, L. R.; SIQUEIRA, F.; GARCIA, J. F.. |
| The myostatin gene, also known as GDF8 (growth differentiation factor 8), is located on bovine chromosome 2 (BTA2); it has three exons and two introns. Myostatin is specifically expressed during embryonic development and in adult skeletal muscle, functioning as a negative regulatory protein. Several cattle breeds (Piedmontese, Belgian Blue and Blond?Aquitaine, and others) show polymorphisms in this gene; these polymorphisms are directly related to the double muscling phenotype. We looked for polymorphisms in the Nellore cattle myostatin gene and compared them with those known for taurine breeds. Seven regions, covering the three exons of this gene, were amplified by polymerase chain reaction and sequenced, including the untranslated region. DNA from 30... |
| Tipo: Artigo de periódico |
Palavras-chave: Nelore; DNA sequencing.; Bovino de Corte; Melhoramento genético animal; DNA; Carne.; Animal breeding; Double muscling; Nucleotides.. |
| Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/572633 |
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| KASARAPU, P.; PORTO NETO, L. R.; FORTES, M. R. S.; LEHNERT, S. A.; MUDADU, M. de A.; COUTINHO, L. L.; REGITANO, L. C. de A.; GEORGE, A.; REVERTER, A.. |
| Numerical approaches to high-density single nucleotide polymorphism (SNP) data are often employed independently to address individual questions. We linked independent approaches in a bioinformatics pipeline for further insight. The pipeline driven by heterozygosity and Hardy-Weinberg equilibrium (HWE) analyses was applied to characterize Bos taurus and Bos indicus ancestry. We infer a gene co-heterozygosity network that regulates bovine fertility, from data on 18,363 cattle with genotypes for 729,068 SNP. Hierarchical clustering separated populations according to Bos taurus and Bos indicus ancestry. The weights of the first principal component were subjected to Normal mixture modelling allowing the estimation of a gene?s contribution to the Bos taurus-Bos... |
| Tipo: Artigo de periódico |
Palavras-chave: Hardy-Weinberg equilibrium; Bos Indicus; Bos Taurus. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1074938 |
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| CARDOSO, D. F.; FERNANDES JÚNIOR, G. A.; SCALEZ, D. C. B.; ALVEZ, A. A. C.; MAGALHÃES, A. F. B.; BRESOLIN, T.; VENTURA, R. V.; LI, C.; OLIVEIRA, M. C. de S.; PORTO NETO, L. R.; CARVALHEIRO, R.; OLIVEIRA, H. N. de; TONHATI, H.; ALBUQUERQUE, L. G.. |
| Highlighting genomic profiles for geographically distinct subpopulations of the same breed may provide insights into adaptation mechanisms to different environments, reveal genomic regions divergently selected, and offer initial guidance to joint genomic analysis. Here, we characterized similarities and differences between the genomic patterns of Angus subpopulations, born and raised in Canada (N?= 382) and Brazil (N = 566). Furthermore, we systematically scanned for selection signatures based on the detection of autozygosity islands common between the two subpopulations, and signals of divergent selection, via FST and varLD tests. The principal component analysis revealed a sub-structure with a close connection between the two subpopulations. The averages... |
| Tipo: Artigo de periódico |
Palavras-chave: Autozygosity islands; Rather similar across; Overall genomic diversity; ROH islands; FST; VarLD signals; Angus. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1127803 |
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