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Registros recuperados: 20 | |
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SOMAVILLA, A. L.; SONSTEGARD, T. S.; HIGA, R. H.; ROSA, A. do N.; SIQUEIRA, F.; SILVA, L. O. C. da; TORRES JUNIOR, R. A. de A.; COUTINHO, L. L.; MUDADU, M. de A.; ALENCAR, M. M. de; REGITANO, L. C. de A.. |
Brazilian Nellore cattle (Bos indicus) have been selected for growth traits for over more than four decades. In recent years, reproductive and meat quality traits have become more important because of increasing consumption, exports and consumer demand. The identification of genome regions altered by artificial selection can potentially permit a better understanding of the biology of specific phenotypes that are useful for the development of tools designed to increase selection efficiency. Therefore, the aims of this study were to detect evidence of recent selection signatures in Nellore cattle using extended haplotype homozygosity methodology and BovineHD marker genotypes (>777 000 single nucleotide polymorphisms) as well as to identify corresponding... |
Tipo: Artigo de periódico |
Palavras-chave: Single nucleotid; Relative extended haplotype homozygosity; Single nucleotide polymorphisms; Bos Indicus; Beef cattle; Genotyping; Linkage disequilibrium. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/998406 |
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SNELLING, W. M.; CHIU, R.; SCHEIN, J. E.; HOBBS, M.; ABBEY, C. A.; ADELSON, D. L.; AERTS, J.; BENNETT, G. L.; BOSDET, I. E.; BOUSSAHA, M.; BRAUNING, R.; CAETANO, A. R.; COSTA, M. M.; CRAWFORD, A. M.; DALRYMPLE, B. P.; EGGEN, A.; WIND, A. E. van der; FLORIOT, S.; GAUTIER, M.; GILL, C. A.; GREEN, R. D.; HOST, R.; JANN, O.; JONES, S. J. M.; DAPPES, S. M.; KEELE, J. W.; JONG, P. J. de; LARKIN, D. M.; LEWIN, J. A.; MCEWAN, J. C.; MCKAY, S.; MARRA, M. A.; MATHEWSON, C. A.; MATUKUMALLI, L. K.; MOORE, S. S.; MURDOCH, B.; NICHOLAS, F. W.; OSOEGAWA, K.; ROY, A.; SALIH, H.; SCHIBLE, L.; SCHNAGEL, R. D.; SILVERI, L.; SKOW, L. C.; SMITH, T. P. L.; SONSTEGARD, T. S.; TAYLOR, J.; TELLAM, R.; TASSELL, C. P. van; WILLIAMS, J. L.; WOMACK, J. E.; WYE, N. H.; YANG, G.; ZHAO, S.. |
Tipo: Artigo de periódico |
Palavras-chave: Bovino; Genoma. |
Ano: 2007 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/188656 |
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NEVES, H. H.; CARVALHEIRO, R.; O'BRIEN, A. M.; UTSUNOMIYA, Y. T.; CARMO, A. S. do; SCHENKEL, F. S.; SÖLKNER, J.; MCEWAN, J. C.; VAN TASSELL, C. P.; COLE, J. B.; SILVA, M. V. G. B.; QUEIROZ, S. A.; SONSTEGARD, T. S.; GARCIA, J. F.. |
Article n. 17. |
Tipo: Artigo de periódico |
Palavras-chave: Nellore cattle; Genomic selection. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/987574 |
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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: Separatas |
Palavras-chave: Cattle - genetic improvement; Indicine; Minor allele frequency.; Linkage disequilibrium; Taurine.. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1006605 |
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ZAVAREZ, L. B.; UTSUNOMIYA, Y. T.; CARMO, A. S.; NEVES, H. H.; CARVALHEIRO, R.; FERENCAKOVIC, M.; O'BRIEN, A. M. P.; CURIK, I.; COLE, J. B.; TASSELL, C. P. V.; SILVA, M. V. G. B.; SONSTEGARD, T. S.; SÖLKNER, J.; GARCIA, J. F.. |
Tipo: Separatas |
Palavras-chave: Fertility; Runs of homozygosity; Selection.; Bos Indicus.; Cattle; Disease resistance.. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1036982 |
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MIYATA, M.; GASPARIN, G.; COUTINHO, L. L.; MARTINEZ. M. L.; MACHADO, M. A.; SILVA, M. V. G. B.; CAMPOS, A. L.; SONSTEGARD, T. S.; REGITANO, L. C. de A.. |
No presente trabalho foi usada uma população experimental resultante do cruzamento de 28 fêmeas da raça Gir com quatro touros da ral¥a Holandesa, resultando ern 150 anirnais Fl , que posterior mente foram acasalados entre si, totalizando 382 animais F2. As arnostras de DNA dos anirnais foram extrafdas a partir do sangue e do semen, e os dados genotfpicos foram obtidos at raves do seqlienciador ABI Prism 3100 Avant (Applied Biosysterns). As analises das freqüências alélicas dos marcadores moleculares (CSSM066, ILSTS011, BMC1207, BMS2055, BL1036, BMS740 e BMS1899) foram realizadas através do software Cervus v.2.0 (Marshall et at. , 1998), onde foi calculado o número de alemos dos marcadores, com um total de 46 alelos nos sete loci estudados, com média de... |
Tipo: Separatas |
Palavras-chave: Caracterização genética; Cromossomo 14; Bovinos. |
Ano: 2005 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/47407 |
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REIS, D. R. de L.; PEREIRA, H. P.; EGITO, A. A. do; TORRES JUNIOR, R. A. de A.; KIM, E. S.; SONSTEGARD, T. S.; MARTINS, M. F.; PANETTO, J. C. do C.; SILVA, M. V. G. B.; MACHADO, M. A.. |
Communication. |
Tipo: Artigo de periódico |
Palavras-chave: Gado. |
Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134440 |
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TIZIOTO, P. C.; TAYLOR, J. F.; DECKER, J. E.; GROMBONI, C. F.; MUDADU, M. de A.; SCHNABEL, R. D.; COUTINHO, L. L.; MOURÃO, G. B.; NASSU, R. T.; DONATONI, F. A. B.; THOLON, P.; SONSTEGARD, T. S.; ALENCAR, M. M. de; TULLIO, R. R.; REECY, J. M.; NOGUEIRA, A. R. de A.; REGITANO, L. C. de A.. |
Tipo: Separatas |
Palavras-chave: Fe; GWAS.; Bos Indicus.. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/997999 |
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TIZIOTO, P. L.; DECKER, J. E.; SCHNABEL, R. D.; MUDADU, M. A.; SILVA, F. L.; MOURÃO, G. B.; COUTINHO, L. L.; THOLON, P.; SONSTEGARD, T. S.; ROSA, A. N.; ALENCAR, M. M.; TULLIO, R. R.; MEDEIROS, S. R.; NASSU, R. T.; FEIJÓ, G. L. D.; SILVA, L. O. C.; TORRES, R. A.; SIQUEIRA, F.; HIGA, R. H.; TAYLOR, J. F.; REGITANO, L. C. de A.. |
A genome wide-association study (GWAS) for Warner-Bratzler shear force (WBSF) measured at different times of meat aging was conducted using genotype data from the Illumina BovineHD BeadChip to identify QTLs in Nelore cattle (n=442). |
Tipo: Anais e Proceedings de eventos |
Palavras-chave: Genoma.; Gado de Corte; Genome; Beef cattle; Nellore. |
Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/969364 |
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UTSUNOMIYA, Y. T.; CARMO, A. S.; NEVES, H. H. R.; CARVALHEIRO, R.; MATOS, M. C.; ZAVAREZ, L. B.; ITO, P. K. R. K.; O'BRIEN, A. M. P.; SOLKNER, J.; PORTO-NETO, L. R.; SCHENKEL, F. S.; McEWAN, J.; COLE, J. B.; SILVA, M. V. G. B.; VAN TASSELL, C. P.; SONSTEGARD, T. S.; GARCIA, J. F.. |
Tipo: Separatas |
Palavras-chave: Genome-wide; Race Nellore; Nellore cattle - reproductive performance; Raça Canchim.; Gado de corte.. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/986515 |
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KIM, E. S.; SONSTEGARD, T. S.; SILVA, M. V. G. B.; GASBARRE, L. C.; TASSEL, C. P. V.. |
Genetic markers associated with parasite indicator traits are ideal targets for study of marker assisted selection aimed at controlling infections that reduce herd use of anthelminthics. For this study, we collected gastrointestinal (GI) nematode fecal egg count (FEC) data from post-weaning animals of an Angus resource population challenged to a 26 week natural exposure on pasture. In all, data from 487 animals was collected over a 16 year period between 1992 and 2007, most of which were selected for a specific DRB1 allele to reduce the influence of potential allelic variant effects of the MHC locus. A genome-wide association study (GWAS) based on BovineSNP50 genotypes revealed six genomic regions located on bovine Chromosomes 3, 5, 8, 15 and 27; which... |
Tipo: Separatas |
Palavras-chave: Cattle; Genetic markers; Heritability.. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037193 |
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ANDREOTE, A. P. D.; ROSÁRIO, M. F. do; LEDUR, M. C.; JORGE, E. C.; SONSTEGARD, T. S.; MATUKUMALLI, L.; COUTINHO, L. L.. |
MicroRNAs (miRNAs, miRs) encompass a class of small non-coding RNAs that often negatively regulate gene expression. miRNAs play an essential role in skeletal muscle, determining the proper development and maintenance of this tissue. In comparison to other organs and tissues, the full set of muscle miRNAs and its expression patterns are still poorly understood. In this report, a chicken skeletal muscle miRNA library was constructed, and the expression of selected miRNAs was further characterized during muscle development in chicken lines with distinct muscling phenotypes. Clone library sequence analysis revealed 40 small RNAs with similarities to previously described chicken miRNAs, seven miRNAs that were never identified before in chicken, and some... |
Tipo: Artigo de periódico |
Palavras-chave: Genetica animal; Galinha; Chickens; Molecular genetics; Cell proliferation. |
Ano: 2014 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1012924 |
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VENERONI, G. B.; MEIRELLES, S. L.; SANTIAGO, A. C.; SONSTEGARD, T. S.; OLIVEIRA, H. N.; YAMAGISHI, M. E. B.; ALENCAR, M. M. de; REGITANO, L. C. de A.. |
O valor comercial da carcaça bovina é determinado por alguns fatores, dentre eles destaca-se a quantidade de gordura de cobertura. Um dos objetivos do melhoramento na raça Canchim é melhorar tal característica na raça, pois esta não possui espessura de gordura desejável pelo mercado. No genoma existem muitas regiões relacionadas à deposição de gordura e, por esse motivo, estudos em larga escala, como os que utilizam chips de milhares de SNPs vêm sendo cada vez mais realizados. O objetivo desse trabalho foi verificar a existência de SNPs em animais Canchim, associados à espessura de gordura subcutânea, utilizando um chip de alta densidade de SNPs, utilizando a estratégia de amostragem dos extremos para a característica. Um mil, cento e setenta e um animais... |
Tipo: Separatas |
Palavras-chave: Região genômica; SNPS.; Melhoramento Animal.. |
Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/660912 |
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VENERONI, G. B.; MEIRELLES, S. L.; SANTIAGO, A. G.; GROSSI, D. C.; SONSTEGARD, T. S.; YAMAGISHI, M. E. B.; COUTINHO, L. L.; OLIVEIRA, H. N.; ALENCAR, M. M. de; REGITANO, L. C. de A.. |
Canchim is a synthetic beef cattle developed in Brazil which have good growth potential and tropical adaptation but suboptimal fat deposition. There are genomic regions associated with fat deposition already described, among them the centromeric region of BTA14. The scope of this work was to identify genomic regions associated with backfat thickness in Canchim (5/8 Charolais + 3/8 zebu) and MA (offspring of Charolais bulls and 1/2 Canchim + 1/2 Zebu cows) populations and to validate the association of haplotypes of the BTA14 with backfat thickness in this population. Thirty animals with extreme phenotypes were genotyped with the 54 K SNP chip, revealing 100 signifi cant SNPs contained in chromosomes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17, 18,... |
Tipo: Separatas |
Palavras-chave: Identification of genomic.; Beef cattle.. |
Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/862995 |
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VERONESI, G. B.; MEIRELLES, S. L.; SANTIAGO, A. C.; GROSSI, D. A.; SONSTEGARD, T. S.; YAMAGISHI, M. E. B.; COUTINHO, L. L.; OLIVEIRA, H. N.; ALENCAR, M. M.; REGITANO, L. C. de A.. |
Canchim is a synthetic beef cattle developed in Brazil which have good growth potential and tropical adaptation but suboptimal fat deposition. There are genomic regions associated with fat deposition already described, among them the centromeric region of BTA14. The scope of this work was to identify genomic regions associated with backfat thickness in Canchim (5/8 Charolais + 3/8 zebu) and MA (offspring of Charolais bulls and 1/2 Canchim + 1/2 Zebu cows) populations and to validate the association of haplotypes of the BTA14 with backfat thickness in this population. Thirty animals with extreme phenotypes were genotyped with the 54 K SNP chip, revealing 100 signifi cant SNPs contained in chromosomes 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 14, 15, 17, 18,... |
Tipo: Anais e Proceedings de eventos |
Palavras-chave: Canchim; Genômica.; Gado de Corte.; Beef cattle; Genomics. |
Ano: 2010 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/876696 |
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BENAVIDES, M. V.; SONSTEGARD, T. S.; KEMP, S.; MUGAMBI, J. M.; GIBSON, J. P.; BAKER, R. L.; HANOTTE, O.; MARSHALL, K.; VAN TASSELL, C.. |
Gastrointestinal (GI) parasitic infection is the main health constraint for small ruminant production, causing loss of weight and/or death. Red Maasai sheep have adapted to a tropical environment where extreme parasite exposure is a constant, especially with highly pathogenic Haemonchus contortus. This breed has been reported to be resistant to gastrointestinal parasite infection, hence it is considered an invaluable resource to study associations between host genetics and resistance. The aim of this study was to identify polymorphisms strongly associated with host resistance in a double backcross population derived from Red Maasai and Dorper sheep using a SNP-based GWAS analysis. The animals that were genotyped represented the most resistant and... |
Tipo: Artigo de periódico |
Palavras-chave: Ovelha; Nematoide; Doença animal; Haemonchus Contortus.; Sheep; Digestive system diseases.. |
Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1037157 |
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DECKER, J. E.; PIRES, J. C.; CONANT, G. C.; MCKAY, S. D.; HEATON, M. P.; CHEN, K.; COOPER, A.; VIKKI, J.; SEABURY, C. M.; CAETANO, A. R.; JOHNSON, G. D.; BRENNEMAN, R. A.; HANOTTE, O.; EGGERT, L. S.; WIENER, P.; KIM, J.-J.; KIM, K. S.; SONSTEGARD, T. S.; TASSELL, C. P. V.; NEIBERGS, H. L.; MCEWAN, J. C.; BRAUNING, R.; COUTINHO, L. L.; BABAR, M. E.; WILSON, G. A.; MCCLURE, M. C.; ROLF, M. M.; KIM, J. W.; SCHNABEL, R. D.; TAYLOR, J. F.. |
Tipo: Separatas |
Palavras-chave: Pecoran; Ancient DNA; Ruminant; Ruminante; Domestication. |
Ano: 2009 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/577801 |
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Registros recuperados: 20 | |
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