Genetic Variation 6 Molecular Marker
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Analysis on genetic diversity of 51 Grape germplasm resources
RESUMO: O objetivo deste estudo é investigar a diversidade genética da uva ‘Zuijinxiang’ e de suas plantas F1 reprodutoras mutantes. Foram selecionadas as melhores plantas mutantes com potencial e valor genético. Utilizaram-se como objeto de pesquisa 50 plantas individuais mutantes obtidas de sementes de uva irradiadas com 137Cs-γ ‘Zuijinxiang’,
Cienc. Rural. Publicado em: 21/10/2019
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2. Variabilidade e divergência genética em cruzamentos dialélicos de soja / Variability and genetic divergence in soybean diallel crosses
Estimates of genetic divergence (DG) have not been used for parental selection in breeding programs, because of the inconsistence of the results. The objective of this study was to evaluate the possibility of predicting the genetic variability (VG) of soybean populations derived from two-way crosses, using DG data from AFLP markers (Bonato et al., 2006), and
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 13/12/2011
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3. Suscetibilidade à proteína Cry1Ac e estrutura genética em populações de Heliothis virescens (Fabricius) (Lepidoptera: Noctuidae) no Brasil / Susceptibility to Cry1Ac protein and genetic structure in populations of Heliothis virescens (Fabricius) (Lepidoptera: Noctuidae) in Brazil
Heliothis virescens (Fabricius) é uma das pragas-alvo do algodão geneticamente modificado que expressa a proteína Cry1Ac de Bacillus thuringiensis Berliner (Bt). Estudos sobre a suscetibilidade de H. virescens à proteína Cry1Ac e sobre a estrutura genética e padrões de fluxo gênico nas escalas locais e regionais desse inseto são fundamentais para a
Publicado em: 2011
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4. Mapeamento de locos de resistência quantitativa a Puccinia psidii Winter em uma progênie de irmãos completos de eucalipto / Mapping of quantitative resistance loci against Puccinia psidii Winter in a full-sib progeny of Eucalyptus
In Brazil, the eucalyptus rust, caused by Puccinia psidii Winter, stands out as the most important disease of eucalypts, mainly in southeastern Brazil. The use of resistant genotypes is the main control method, which makes the understanding of the genetic basis of resistance essential to the selection of resistant genotypes. In this study, an F1 progeny of 9
Publicado em: 2010
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5. Variability and genetic structure of Alabama argillacea (Hüeb.) (Lepidoptera: Noctuidae) populations in Brazil: Basis for managing resistance to Cry1Ac toxin in genetically modified cotton / Variabilidade e estrutura genética de populações de Alabama argillacea (Hüeb.) (Lepidoptera: Noctuidae) no Brasil: subsídios para o manejo da resistência à toxina Cry1Ac em algodão geneticamente modificado
Algodão geneticamente modificado que expressa a toxina Cry1Ac de Bacillus thuringiensis Berliner tem sido plantado no Brasil desde 2006. Entre as pragas-alvo da tecnologia, Alabama argillacea (Hüeb.) é uma espécie monófoga e apresenta alto potencial de risco de evolução da resistência. Para a implantação de um programa de manejo da resistência de
Publicado em: 2010
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6. Diversidade populacional, vias de transmissÃo e virulÃncia de Streptococcus agalactiae isolados de tilÃpias do Nilo (Oreochromis niloticus). / Tilapia; Brazil; Streptococcus agalactiae, experimental infection;16SrRNA; ISR
Streptococcus agalactiae is an emerging pathogen in Nile tilapia. To investigate aspects of the epidemiology, transmission, virulence and the genetic diversity of S. agalactiae infections, nine outbreaks of meningoencephalitis and septicemia in Nile tilapia farms in Brazil were analyzed. The 16S rRNA gene and ISR were utilized with molecular marker of the ge
Publicado em: 2009
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7. Estudos de citogenética e de filogenia molecular em roedores da tribo Akodontini / Cytogenetics and molecular phylogenetics in rodents of the tribe Akodontini
Traditionally comparative cytogenetic studies are based mainly on banding patterns. Nevertheless, when dealing with species with highly rearranged genomes, as in Akodon species, or with other highly divergent species, cytogenetic comparisons of banding patterns prove to be inadequate. Hence, comparative chromosome painting has become the method of choice for
Publicado em: 2009
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8. Genética molecular de populações de Alternaria solani no Brasil / Molecular population genetics of Alternaria solani in Brazil
The analysis of the genetic structure of the population of Alternaria solani is an important component of the molecular epidemiology potato (Po) and tomato (To) early blight. Isolates were sampled from the Northeast, Central-West, Southeast, and South regions of Brazil. AFLP and RAPD markers were used to estimate genetic diversity. A multilocus combined data
Publicado em: 2008
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9. Linkage maps and QTL mapping in the yellow passion-fruit (Passiflora edulis Sims f. flavicarpa Deg.) / Mapas de ligação e mapeamento de QTL ("Quantitative Trait Loci") em maracujá-amarelo (Passiflora edulis Sims f. flavicarpa Deg.)
Although the yellow passion-fruit plays an important commercial role in Brazil, breeding and genetics studies are insipient. The present study was conducted aiming the construction of linkage maps and mapping of QTL for traits related to yield and fruit quality. It was used a population, composed of 160 individuals, derived from a cross from two plants of th
Publicado em: 2005
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10. Padrões de distribuição genotipica em litorinideos (Mollusca : Gastropoda) da costa brasileira / Genotypic distribution patterns in littorinids (Mollusca : Gastropoda) from Brazilian coast
One of the main questions in biology is the link between a species ecology and its evolution. Evaluating the relationship between the geographical scale over which populations differ genetically and the species dispersal ability is a way to understand how this link is established. Spatial variation in allellic frequencies of natural populations may be explai
Publicado em: 2005
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11. Molecular evolution and diversity in Bacillus anthracis as detected by amplified fragment length polymorphism markers.
Bacillus anthracis causes anthrax and represents one of the most molecularly monomorphic bacteria known. We have used AFLP (amplified fragment length polymorphism) DNA markers to analyze 78 B. anthracis isolates and six related Bacillus species for molecular variation. AFLP markers are extremely sensitive to even small sequence variation, using PCR and high-
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12. Quantitative-Trait Loci Influencing Body-Mass Index Reside on Chromosomes 7 and 13: The National Heart, Lung, and Blood Institute Family Heart Study
Obesity is a risk factor for many chronic diseases, including glucose intolerance, lipid disorders, hypertension, and coronary heart disease. Even though the body-mass index (BMI) is a heterogeneous phenotype reflecting the amount of fat, lean mass, and body build, several studies have provided evidence of one or two major loci contributing to the variation
The American Society of Human Genetics.