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| Registros recuperados: 32 | |
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| NODA, R. W.; LAAT, D. M. de; GUIMARÃES, C. T.; SOUZA, T. C. de; DIAS, L. L. C.; LOBO, F. P.; MAGALHÃES, J. V. de; COIMBRA, R. S.; MAGALHÃES, P. C.; ZERLOTINI, A.; FRANCO, G. M.; CARNEIRO, N. P.. |
| In this study microarray data from roots of a drought tolerant inbred maize line (Embrapa?s breeding program) under two water regimes was analyzed. The analysis revealed that 746 genes were differentially expressed, of which 455 were up- and 291 were down-regulated. |
| Tipo: Parte de livro |
Palavras-chave: Genômica; Milho; Microarray technology; Corn; Genomics. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/981622 |
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| BERNARDINO, K. C.; MENEZES, C. B. de; SOUSA, S. M. de; GUIMARÃES, C. T.; CARNEIRO, P. C. S.; SCHAFFERT, R. E.; KOCHIAN, L. V.; HUFNAGEL, B.; PASTINA, M. M.; MAGALHAES, J. V. de. |
| Tropical soils where low phosphorus (P) and aluminum (Al) toxicity limit sorghum [Sorghum bicolor (L.) Moench] production are widespread in the developing world. We report on BRP13R, a multiparental random mating population (MPRMP), which is commonly used in sorghum recurrent selection targeting tropical soil adaptation. Recombination dissipated much of BRP13R?s likely original population structure and average linkage disequilibrium (LD) persisted up to 2.5 Mb, establishing BRP13R as a middle ground between biparental populations and sorghum association panels. Genome-wide association mapping (GWAS) identifed conserved QTL from previous studies, such as for root morphology and grain yield under low-P, and indicated the importance of dominance in the... |
| Tipo: Artigo de periódico |
Palavras-chave: Seleção genômica; Sorgo; Genética Vegetal; Gene; Melhoramento Genético Vegetal. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125512 |
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| MATONYEI, T. K.; BARROS, B. de A.; GUIMARÃES, R. G. N.; OUMA, E. O.; CHEPROT, R. K.; APOLINÁRIO, L. C.; LIGEYO, D. O.; COSTA, M. B. R.; WERE, B. A.; KISINYO, P. O.; ONKWARE, A. O.; NODA, R. W.; GUDU, S. O.; MAGALHAES, J. V. de; GUIMARÃES, C. T.. |
| Tipo: Artigo de periódico |
Palavras-chave: Genética Vegetal; Alumínio; Milho; Germoplasma. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1124215 |
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| BARROS, B. de A.; CARNEIRO, A. A.; CARNEIRO, N. P.; MAGALHAES, P. C.; ALVES, M. de C.; PINTO, M. de O.; NODA, R. W.; MAGALHAES, J. V. de; GUIMARÃES, C. T.; MENEZES, C. B. de; TARDIN, F. D.; SCHAFFERT, R. E.. |
| Tipo: Parte de livro |
Palavras-chave: Estresse hídrico; Genética; Sorgo; Gene. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1093677 |
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| OLIVEIRA, A. A. de; GUIMARAES, L. J. M.; GUIMARÃES, C. T.; GUIMARAES, P. E. de O.; PINTO, M. de O.; PASTINA, M. M.; MARGARIDO, G. R. A.. |
| Genotyping-by-sequencing (GBS) datasets typically feature high rates of missingness and heterozygote undercalling, prompting the use of data imputation. We compared the accuracy of four imputation methods?NPUTE, Beagle, knearest neighbors imputation (KNNI), and fast inbreed line library imputation (FILLIN)?using GBS data of maize (Zea mays L.) inbred lines, genotyped using different multiplexing levels. Two strategies for SNP-calling and genotype imputation were evaluated. First, only lines genotyped through 96-plex were used for single nucleotide polymorphism (SNP) discovery, whereas both 96- and 384-plex were simultaneously used in the second strategy. In the first genotype imputation strategy, only the 96-plex lines were imputed, then the remaining... |
| Tipo: Artigo de periódico |
Palavras-chave: Genotipagem; Imputação; Genética Vegetal; Seleção Genótipa; Genótipo; Melhoramento Genético Vegetal; Milho; Polimorfismo. |
| Ano: 2020 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1125019 |
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| HUFNAGEL, B.; GUIMARÃES, C. T.; CRAFT, E. J.; SHAFF, J. E.; SCHAFFERT, R. E.; KOCHIAN, L. V.; MAGALHAES, J. V.. |
| Root damage due to aluminum (Al) toxicity restricts crop production on acidic soils, which are extensive in the tropics. The sorghum root Al-activated citrate transporter, SbMATE, underlies the Al tolerance locus, AltSB, and increases grain yield under Al toxicity. Here, AltSB loci associated with Al tolerance were converted into Amplification Refractory Mutation System (ARMS) markers, which are cost effective and easy to use. A DNA pooling strategy allowed us to identify accessions harboring rare favorable AltSB alleles in three germplasm sets while greatly reducing genotyping needs. Population structure analysis revealed that favorable AltSB alleles are predominantly found in subpopulations enriched with guinea sorghums, supporting a possible Western... |
| Tipo: Artigo de periódico |
Palavras-chave: Tolerância; Toxicidade; Alumínio; Germoplasma; Marcador Genético; Sorgo. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1093494 |
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| RUIZ, J. C.; D'AFONSECA, V.; SILVA, A.; ALI, A.; PINTO, A. C.; SANTOS, A. R.; ROCHA, A. A. M. C.; LOPES, D. O.; DORELLA, F. A.; PACHECO, L. G. C.; COSTA, M. P.; TURK, M. Z.; SEYFFERT, N.; MORAES, P. M. R. O.; SOARES, S. C.; ALMEIDA, S. S.; CASTRO, T. L. P.; ABREU, V. A. C.; TROST, E.; BAUMBACH, J.; TAUCH, A.; SCHNEIDER, M. P. C.; McCULLOCH, J.; CERDEIRA, L. T.; RAMOS, R. T. J.; ZERLOTINI, A.; DOMINITINI, A.; RESENDE, D. M.; COSER, E. M.; OLIVEIRA, L. M.; PEDROSA, A. L.; VIEIRA, C. U.; GUIMARÃES, C. T.; BARTHOLOMEU, D. C.; OLIVEIRA, D. M.; SANTOS, F. R.; RABELO, É. M.; LOBO, F. P.; FRANCO, G. R.; COSTA, A. F.; CASTRO, I. M.; DIAS, S. R. C.; FERRO, J. A.; ORTEGA, J. M.; PAIVA, L. V.; GOULART, L. R.; ALMEIDA, J. F.; FERRO, M. I. T.; CARNEIRO, N. P.; FALCÃO, P. R. K.; GRYNBERG, P.; TEIXEIRA, S. M. R.; BROMMONSCHENKEL, S.; OLIVEIRA, S. C.; MEYER, R.; MOORE, R. J.; MIYOSHI, A.; OLIVEIRA, G. C.; AZEVEDO, V.. |
| Background: Corynebacterium pseudotuberculosis, a Gram-positive, facultative intracellular pathogen, is the etiologic agent of the disease known as caseous lymphadenitis (CL). CL mainly affects small ruminants, such as goats and sheep; it also causes infections in humans, though rarely. This species is distributed worldwide, but it has the most serious economic impact in Oceania, Africa and South America. Although C. pseudotuberculosis causes major health and productivity problems for livestock, little is known about the molecular basis of its pathogenicity. Methodology and Findings: We characterized two C. pseudotuberculosis genomes (Cp1002, isolated from goats; and CpC231, isolated from sheep). Analysis of the predicted genomes showed high similarity in... |
| Tipo: Artigo de periódico |
Palavras-chave: Genoma de C pseudotuberculosis; Análise de genoma; Ilhas de patogenicidade; Corynebacterium Pseudotuberculosis; Caseous lymphadenitis; Pathogenicity. |
| Ano: 2011 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/914696 |
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| BARRETO, C. A. V.; DIAS, K. O. das G.; SOUSA, I. C. de; AZEVEDO, C. F.; NASCIMENTO, A. C. C.; GUIMARAES, L. J. M.; GUIMARÃES, C. T.; PASTINA, M. M.; NASCIMENTO, M.. |
| In the context of multi-environment trials (MET), genomic prediction is proposed as a tool that allows the prediction of the phenotype of single cross hybrids that were not tested in field trials. This approach saves time and costs compared to traditional breeding methods. Thus, this study aimed to evaluate the genomic prediction of single cross maize hybrids not tested in MET, grain yield and female flowering time. We also aimed to propose an application of machine learning methodologies in MET in the prediction of hybrids and compare their performance with Genomic best linear unbiased prediction (GBLUP) with non-additive effects. Our results highlight that both methodologies are efficient and can be used in maize breeding programs to accurately predict... |
| Tipo: Artigo de periódico |
Palavras-chave: Predição genômica; Milho; Hibrido; Produtividade. |
| Ano: 2024 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1163114 |
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| PALHARES, P. L. S.; LOPES, S. da S.; LANA, U. G. de P.; ALVES, M. de C.; MAGALHAES, J. V. de; GUIMARÃES, C. T.; CARNEIRO, A. A.; SOUSA, S. M. de. |
| O fósforo (P) é um dos macronutrientes mais limitantes às culturas nos solos brasileiros e com menor eficiência de uso pelas plantas. O gene PHOSPHORUS-STARVATION TOLERANCE 1 (PSTOL1) é uma proteína quinase que quando superexpressa aumenta a superfície radicular, a aquisição de P e a produtividade de arroz sob baixo P. Com o objetivo de verificar o efeito do PSTOL1 de arroz em dicotiledôneas, este gene foi clonado no vetor pMCG1005, tendo o gene BAR como marcador de seleção. As plantas de tabaco Petit Havana foram geneticamente transformadas via Agrobacterium tumefaciens e regeneradas dos calos selecionados. Os fragmentos do gene BAR (~400 pb) e do gene OsPSTOL1 (~700 pb) foram amplificados por PCR confirmando a integração de ambos os genes nas plantas... |
| Tipo: Artigo de periódico |
Palavras-chave: Nicotiana Tabacum; Raiz. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1104262 |
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| RIBEIRO, C. A. G.; SOUSA, S. M. de; SOUZA, V. F. de; NEGRI, B. F.; GAULT, C. M.; PASTINA, M. M.; MAGALHAES, J. V. de; GUIMARAES, L. J. M.; BARROS, E. G. de; BUCKLER. E. S.; GUIMARÃES, C. T.. |
| Maximizing soil exploration through modifications of the root system is a strategy for plants to overcome phosphorus (P) deficiency. Genome-wide association with 561 tropical maize inbred lines from Embrapa and DTMA panels was undertaken for root morphology and P acquisition traits under low- and high-P concentrations, with 353,540 SNPs. P supply modified root morphology traits, biomass and P content in the global maize panel, but root length and root surface area changed differentially in Embrapa and DTMA panels. This suggests that different root plasticity mechanisms exist for maize adaptation to low-P conditions. A total of 87 SNPs were associated to phenotypic traits in both P conditions at ?log10(p-value) ? 5, whereas only seven SNPs reached the... |
| Tipo: Artigo de periódico |
Palavras-chave: Morfologia radicular; Deficiência de fósforo; Milho; Morfologia Vegetal; Sistema Radicular; Plant morphology; Roots; Phosphorus. |
| Ano: 2023 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1153347 |
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| Registros recuperados: 32 | |
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