Epistasis Genetic
Mostrando 13-24 de 164 artigos, teses e dissertações.
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13. Lack of evidence for intermolecular epistatic interactions between adiponectin and resistin gene polymorphisms in Malaysian male subjects
Epistasis (gene-gene interaction) is a ubiquitous component of the genetic architecture of complex traits such as susceptibility to common human diseases. Given the strong negative correlation between circulating adiponectin and resistin levels, the potential intermolecular epistatic interactions between ADIPOQ (SNP+45T > G, SNP+276G > T, SNP+639T > C and SN
Genetics and Molecular Biology. Publicado em: 15/12/2011
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14. Genetical and environmental analyses of yield in six biparental soybean crosses.
The yearly genetic progress obtained by breeding for increased soybean yield has been considered acceptable worldwide. It is common sense, however, that this progress can be improved further if refined breeding techniques, developed from the knowledge of the genetic mechanisms controlling soybean yield, are used. In this paper, data from four cultivars and/o
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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15. Soybean cultivar BR-16-AHAS tolerance to the herbicide imazapyr.
The objective of this work was to evaluate the effect of the transgenic soybean BR-16-AHAS genetic constitution on the tolerance to the herbicide imazapyr. BR-16-AHAS was crossed with ten other genotypes. The experimental design was a complete randomized block, in a 2x12x3 factorial arrangement, with two sowing periods (winter and summer), twelve crossing gr
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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16. Controle genético da resistência da soja à raça 4 de Cercospora sojina.
O objetivo deste trabalho foi estudar o controle genético da resistência à Cercospora sojina, em populações segregantes derivadas do cruzamento entre as cultivares de soja Paraná e Bossier. Foram avaliadas nos genitores e nas gerações F1, F2, RC1 e RC2 seis características das plantas associadas com a doença: nota para infecção (NT); número de l
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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17. Relationship of an hRAD54 gene polymorphism (2290 C/T) in an Ecuadorian population with chronic myelogenous leukemia
The hRAD54 gene is a key member of the RAD52 epistasis group involved in repair of double-strand breaks (DSB) by homologous recombination (HR). Thus, alterations of the normal function of these genes could generate genetic instability, shifting the normal process of the cell cycle, leading the cells to develop into cancer. In this work we analyzed exon 18 of
Genetics and Molecular Biology. Publicado em: 12/11/2010
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18. Genetic control of Eucalyptus urophylla and E. grandis resistance to canker caused by Chrysoporthe cubensis
Chrysophorte cubensis induced canker occurs in nearly all tropical and subtropical regions where eucalypts are planted, causing losses in both wood quality and volume productivity, especially so in the warmer and more humid regions of Brazil. The wide inter and intra-specific genetic variability of resistance to canker among Eucalyptus species facilitates th
Genetics and Molecular Biology. Publicado em: 23/07/2010
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19. Linkage analysis between dominant and co-dominant makers in full-sib families of out-breeding species
As high-throughput genomic tools, such as the DNA microarray platform, have lead to the development of novel genotyping procedures, such as Diversity Arrays Technology (DArT) and Single Nucleotide Polymorphisms (SNPs), it is likely that, in the future, high density linkage maps will be constructed from both dominant and co-dominant markers. Recently, a stric
Genetics and Molecular Biology. Publicado em: 2010
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20. Uma abordagem bayesiana para mapeamento de QTLs em populações experimentais / A Bayesian approach for mapping QTL in experimental populations
Many traits in plants and animals have quantitative nature, influenced by multiple genes. With the new molecular techniques, it has been possible to map the loci, which control the quantitative traits, called QTL (Quantitative Trait Loci). Mapping a QTL means to identify its position in the genome, as well as to estimate its genetics effects. The great diffi
Publicado em: 2009
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21. Epistasis in an Andean X Mesoamerican cross of common bean. / Epistasia em cruzamento de feijÃo andino x mesoamericano
Common bean (Phaseolus vulgaris L.) was domesticated in at least two distinct regions, the Mesoamerican and the Andean regions. Seeking to amplify the genetic variability for several characters of common bean, crossings of beans from these two regions has been proposed. However, besides the incompatibility that makes unfeasible most of the crossings, when th
Publicado em: 2008
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22. Application of genetic algorithm in the genes epistatic map in controlled crossings / Aplicação do algorítmo genético no mapeamento de genes epistáticos em cruzamentos controlados
O mapeamento genético é constituído por procedimentos experimentais e estatísticos que buscam detectar genes associados à etiologia e regulação de doenças, além de estimar os efeitos genéticos e as localizações genômicas correspondentes. Considerando delineamentos experimentais que envolvem cruzamentos controlados de animais ou plantas, diferent
Publicado em: 2008
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23. Epistasia e interação epistasia por locais para a produção de grãos em soja / Epistasis and epistasis by location interaction for grain yield in soybean
In soybean breeding programs the selfing progenies are generally evaluated as possible cultivars. The study of the structure of the genetic variation among progenies in different generations of selfing depends upon the action of the loci involved and the variability of the trait under study. In soybeans, grain yield is the most important trait and it is char
Publicado em: 2007
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24. Genetic evaluation of beef cattle composite / Avaliação genética de bovinos de corte compostos
Genetic groups were used to estimate the heterosis and its profile along generations in the population of Tropical Montana composite. The genetic groups evaluated were: pure breed animals, F1, other crossbreds and Tropical Montana composites. It was used a pedigree data to calculate each animal generation. The data were adjusted for the effects of total mate
Publicado em: 2007