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Evidence of Allopolyploidy in Urochloa humidicola based on cytological analysis and genetic linkage mapping. Repositório Alice
VIGNA, B. B. Z.; SANTOS, J. C. S.; JUNGMANN, L.; VALLE, C. B. do; MOLLINARI, M.; PASTINA, M. M.; PAGLIARINI, M. S.; GARCIA, A. A. F.; SOUZA, A. P..
The African species Urochloa humidicola (Rendle) Morrone & Zuloaga (syn. Brachiaria humidicola (Rendle) Schweick.) is an important perennial forage grass found throughout the tropics. This species is polyploid, ranging from tetra to nonaploid, and apomictic, which makes genetic studies challenging; therefore, the number of currently available genetic resources is limited. The genomic architecture and evolution of U. humidicola and the molecular markers linked to apomixis were investigated in a full-sib F1 population obtained by crossing the sexual accession H031 and the apomictic cultivar U. humidicola cv. BRS Tupi, both of which are hexaploid. A simple sequence repeat (SSR)-based linkage map was constructed for the species from 102 polymorphic and...
Tipo: Artigo de periódico Palavras-chave: Mapeamento genético; Gene; Planta forrageira.
Ano: 2016 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1057798
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QTL mapping for yield components in a sugarcane commercial cross. Repositório Alice
ANONI, C. O.; GAZAFFI, R.; PASTINA, M. M.; MANCINI, M. C.; COSTA, E. A.; MOLLINARI, M.; MARCONI, T. G.; PINTO, L. R.; SOUZA, A. P.; GARCIA, A. A. F..
Tipo: Parte de livro Palavras-chave: Poliploidia; Cana de açúcar; Genética; Saccharum; Polyploidy; Quantitative trait loci.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/974189
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SNP genotyping allows an in-depth characterisation of the genome of sugarcane and other complex autopolyploids. Repositório Alice
GARCIA, A. A. F.; MOLLINARI, M.; MARCONI, T. G.; SERANG, O. R.; SILVA, R. R.; VIEIRA, M. L. C.; VICENTINI, R.; COSTA, E. A.; MANCINI, M. C.; GARCIA, M. O. S.; PASTINA, M. M.; GAZAFFI, R.; MARTINS, E. R. F.; DAHMER, N.; SFORÇA, D. A.; SILVA, C. B. C.; BUNDOCK, P.; HENRY, R. J.; SOUZA, G. M.; SLUYS, M.-A. V.; LANDELL, M. G. A.; CARNEIRO, M. S.; VINCENTZ, M. A. G.; PINTO, L. R.; VENCOVSKY, R.; SOUZA, A. P..
Many plant species of great economic value (e.g., potato, wheat, cotton, and sugarcane) are polyploids. Despite the essential roles of autopolyploid plants in human activities, our genetic understanding of these species is still poor. Recent progress in instrumentation and biochemical manipulation has led to the accumulation of an incredible amount of genomic data. In this study, we demonstrate for the first time a successful genetic analysis in a highly polyploid genome (sugarcane) by the quantitative analysis of single-nucleotide polymorphism (SNP) allelic dosage and the application of a new data analysis framework. This study provides a better understanding of autopolyploid genomic structure and is a sound basis for genetic studies. The proposed methods...
Tipo: Artigo de periódico Palavras-chave: Genótipo; Genética vegetal; Genoma; Cana de açúcar; Genotype; Genome; Plant genetics.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/976559
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Studying the genetic basis of drought tolerance in sorghum by managed stress trials and adjustments for phenological and plant height differences. Repositório Alice
SABADIN, P. K.; MALOSETTI, M.; BOER, M. P.; TARDIN, F. D.; SANTOS, F. G.; GUIMARAES, C. T.; GOMIDE, R. L.; ANDRADE, C. L. T.; ALBUQUERQUE, P. E. P.; CANIATO, F. F.; MOLLINARI, M.; MARGARIDO, G. R. A.; OLIVEIRA, B. F.; SCHAFFERT, R. E.; GARCIA, A. A. F.; EEUWIJK, F. A. van; MAGALHAES, J. V..
Managed environments in the form of well watered and water stressed trials were performed to study the genetic basis of grain yield and stay green in sorghum with the objective of validating previously detected QTL. As variations in phenology and plant height may influence QTL detection for the target traits, QTL for flowering time and plant height were introduced as cofactors in QTL analyses for yield and stay green. All but one of the flowering time QTL were detected near yield and stay green QTL. Similar co-localization was observed for two plant height QTL. QTL analysis for yield, using flowering time/plant height cofactors, led to yield QTL on chromosomes 2, 3, 6, 8 and 10. For stay green, QTL on chromosomes 3, 4, 8 and 10 were not related to...
Tipo: Artigo de periódico Palavras-chave: Genética; Sorghum Bicolor; Genetics.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/914554
Registros recuperados: 4
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