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| Registros recuperados: 46 | |
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| PESSOA FILHO, M. A. C. de P.; SOUZA SOBRINHO, F. de; FRAGOSO, R. da R.; SILVA JUNIOR, O. B. da; FERREIRA, M. E.. |
| ABSTRACT: Ruzigrass (Urochloa ruziziensis) is a diploid, tropical forage grass native to Africa, widely planted in Brazil, and known for its high nutritional quality. It is closely related to other important forage species of Urochloa, playing a crucial role in the breeding program of brachiaria grasses, which is mostly focused on inter-specific hybrids. Previous studies from our group based on shallow Illumina sequencing resulted in the development of the first molecular markers for the species, as well as in assessments of germplasm diversity and structure. Assembly and analysis of complete plastid genomes for four Urochloa species allowed the characterization of their phylogenetic divergence. Here, we strengthen the set of genomic tools for tropical... |
| Tipo: Parte de livro |
Palavras-chave: Montagem de sequência de DNA; Bioinformática; De novo Assembly; Brachiaria Ruziziensis; Pastagem; Genoma. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1099953 |
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| PESSOA FILHO, M. A. C. de P.; SOUZA SOBRINHO, F. de; FRAGOSO, R. da R.; SILVA JUNIOR, O. B. da; FERREIRA, M. E.. |
| Ruzigrass (Urochloa ruziziensis) is a diploid, tropical forage grass native to Africa, widely planted in Brazil, known for its high nutritional quality. It is closely related to important forage species of Urochloa, and plays a crucial role in the breeding program of brachiaria grasses, mostly focused on inter-specific hybirds. Previous studies from our group based on shallow Illumina sequencing resulted in the development of the first molecular markers for the species (Silva et al., 2013), as well as in assessments of germplasm diversity and structure (Pessoa-Filho et al., 2015). Assembly and analysis of complete plastid genomes for four Urochloa species allowed the characterization of their phylogenetic divergence (Pessoa-Filho et al., 2017). Here, we... |
| Tipo: Parte de livro |
Palavras-chave: Brasil; Genoma; Capim Urochloa. |
| Ano: 2019 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1107378 |
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| RESENDE, R. T.; SILVA, P. I. T.; SILVA JUNIOR, O. B. da; FREITAS, M. L. M.; SEBBENN, A. M.; SOUSA, V. A. de; AGUIAR, A. V. de; GRATTAPAGLIA, D.. |
| Understanding the growth patterns of long-lived conifer tree species is important to devise breeding and early selection strategies, predict future biomass productivity and assess adaptive tree fitness for long term conservation efforts. We investigated the genetic variation for growth traits of Araucaria angustifolia, the grandiose renowned ?Parana ´ pine? tree, in a trial involving 122 families across 15 provenances covering the entire natural range of the species in Brazil. Measurements at ages 7, 24, 32, 33 and 35 were used to adjust continuous growth curves based on nonlinear mixed-effect models for all 2158 trees, providing annual estimates for unmeasured ages in the 7-to-35-year interval. Estimated values closely matched observed ones and a... |
| Tipo: Artigo de periódico |
Palavras-chave: Individual tree modeling; Random regression; Genetic parameters; Mixed models; Conifer breeding; Araucária Angustifólia; Pinheiro do Paraná; Early selection. |
| Ano: 2021 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1134780 |
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| PASSOS, M. A. N.; CRUZ, V. O. de; EMEDIATO, F. L.; TEIXEIRA, C. C. de; AZEVEDO, V. C. R.; BRASILEIRO, A. C. M.; AMORIM, E. P.; FERREIRA, C. F.; MARTINS, N. F.; TOGAWA, R. C.; PAPPAS JÚNIOR, G. J.; SILVA JUNIOR, O. B. da; MILLER, R. T N. G.. |
| Background: Although banana (Musa sp.) is an important edible crop, contributing towards poverty alleviation and food security, limited transcriptome datasets are available for use in accelerated molecular-based breeding in this genus. 454 GS-FLX Titanium technology was employed to determine the sequence of gene transcripts in genotypes of Musa acuminata ssp. burmannicoides Calcutta 4 and M. acuminata subgroup Cavendish cv. Grande Naine, contrasting in resistance to the fungal pathogen Mycosphaerella musicola, causal organism of Sigatoka leaf spot disease. To enrich for transcripts under biotic stress responses, full length-enriched cDNA libraries were prepared from whole plant leaf materials, both uninfected and artificially challenged with pathogen... |
| Tipo: Separatas |
Palavras-chave: Banana; Fungo; Musa Acuminata; Mycosphaerella Musicola; Transcriptome; Microsatellite repeats. |
| Ano: 2013 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/964212 |
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| SILVA JUNIOR, O. B. da; PESSOA FILHO, M. A. C. de P.; SA, M. E. L.; DEAL, R.; RAGOUSSIS, I.; GRATTAPAGLIA, D.; RECH FILHO, E. L.. |
| ABSTRACT: Directional selection during crop domestication and advanced breeding has resulted in significant changes in plant genomes. The extent of intraspecific variation in a crop documents domestication and highlights variants underlying complex traits. Studies demonstrate that most naturally occurring variants in crops are low frequency, and only a small fraction of those might have important functions to trait variation. To understand the inheritance of quantitative traits, diversity panels have become available by crossing inbred lines to produce genomic maps that relate phenotypic variation to recombination and ultimately to genome structure. Using these resources, genomics studies have suggested that selection performs poorly in pericentromeric... |
| Tipo: Parte de livro |
Palavras-chave: Análise genômica; Seqüenciamento de longa duração; Soja; Genoma; Melhoramento Genético Vegetal. |
| Ano: 2018 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100401 |
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| CARNEIRO, F. de A.; MARRACCINI, P.; SILVA JUNIOR, O. B. da; GRATTAPAGLIA, D.; ANDRADE, A. C.. |
| A produção mundial de café é altamente afetada pelas mudanças climáticas, consequentemente, obter plantas adaptadas a este cenário de clima alterado torna-se muito importante. Com os recentes avanços na genômica do cafeeiro, como o sequenciamento do genoma de C. canephora, o objetivo deste trabalho foi desenvolver e validar o chip de genotipagem de DNA para C. canephora (26K Axiom SNP array), visando uma plataforma de genotipagem confiável e de alto rendimento, a ser utilizada nos programas de melhoramento da espécie. A construção do chip foi feita utilizando-se dados gerados a partir do resequenciamento genômico de pools formados por indivíduos dos diferentes grupos de diversidade encontrados na espécie e por indivíduos de C. canephora Conilon,... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Genotipagem; SNP array; Melhoramento genético.; Coffea canephora; DNA; Gene; Genoma.. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084718 |
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| CARNEIRO, F. de A.; MARRACCINI, P.; SILVA JUNIOR, O. B. da; GRATTAPAGLIA, D.; ANDRADE, A. C.. |
| World coffee production is higly affected by climate changes due to the occurrence of severe droughts and high temperatures resulting in low flow er viability, fruit development and yield. Faster breeding methods are required to obtain adapted coffee plants to a changed climate cenario, as conventional breeding in perennial crops such as coffee, requires a long time. With the recent advances in coffee genomics, such as the availability of a C. canephora reference genome , the objective of this work was to develop and validate a 26K Axiom SNP array for C. canephora aiming at a reliable high throughput genotyping platform to be used in the breeding programmes of the species. The chip design was based on a whole - genome resequencing panel comprised by DNA... |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Coffe canephora Conilon; Coffee genomics; Coffee plant; Genetic diversity; Genomic selection.; Coffea Canephora.; Climate change.. |
| Ano: 2017 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1084572 |
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| PASSOS, M. A. N.; CRUZ, V. de O.; EMEDIATO, F. L.; TEIXEIRA, C. de C.; SOUZA JUNIOR, M. T.; MATSUMOTO, T.; AZEVEDO, V. C. R.; FERREIRA, C. F.; AMORIM, E. P.; FIGUEIREDO, L. F. de A.; MARTINS, N. F.; CAVALCANTE, M. de J. B.; BAURENS, F. C.; SILVA JUNIOR, O. B. da; PAPPAS JUNIOR, G. J.; PIGNOLET, L.; ABADIE, C.; CIAMPI, A. Y.; PIFFANELLI, P.; MILLER, R. N. G.. |
| Banana (Musa acuminata) is a crop contributing to global food security. Many varieties lack resistance to biotic stresses, due to sterility and narrow genetic background. The objective of this study was to develop an expressed sequence tag (EST) database of transcripts expressed during compatible and incompatible banana-Mycosphaerella fijiensis (Mf) interactions. Black leaf streak disease (BLSD), caused by Mf, is a destructive disease of banana. Microsatellite markers were developed as a resource for crop improvement. |
| Tipo: Artigo de periódico |
Palavras-chave: Marcador microssatélite; Bananos; Plant breedind; Marcadores genéticos; Firomejoramiento; Repeticiones de microsatélite.; Enfermedades y desórdenes de las plantas; Melhoramento genético vegetal; Banana; Musa acuminata; Marcador genético; Variedade resistente; Doença de planta; Melhoramento vegetal; Fungo; Sigatoka negra; Mycosphaerella fijiensis; Plátano.; Bananas; Genetic markers; Microsatellite repeats; Plant diseases and disorders; Fungi; Black sigatoka.. |
| Ano: 2012 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/953929 |
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| CARNEIRO, F. de A.; RÊGO, É. C. S.; AQUINO, S. O. de; COSTA, T. S.; LIMA, E. A. de; ROCHA, O. C.; RODRIGUES, G. C.; CARVALHO, M. A. de F.; MARRACCINI, P.; BARTHOLO, G. F.; GUERRA, A. F.; SILVA JUNIOR, O. B. da; GRATTAPAGLIA, D.; ANDRADE, A. C.. |
| Este trabalho objetivou (i) avaliar e caracterizar, por meio da técnica de genotipagem nextRAD (Nextera-tagmented reductively-amplified DNA), a diversidade e a estrutura genética de indivíduos de C. canephora Conilon, pertencentes a uma população localizada em campo experimental da Embrapa Cerrados. |
| Tipo: Anais e Proceedings de eventos |
Palavras-chave: Diversidade genética; Genotipagem nextRAD; Genetic diversity.; Coffea Canephora.; Single nucleotide polymorphism; Genotyping; Genetic variation.. |
| Ano: 2015 |
URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1029881 |
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| Registros recuperados: 46 | |
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