Allelic Origin
Mostrando 1-12 de 84 artigos, teses e dissertações.
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1. High genetic differentiation of grapevine rootstock varieties determined by molecular markers and artificial neural networks
ABSTRACT. The genetic differentiation of grapevine rootstock varieties was inferred by the Artificial Neural Network approach based on the Self-Organizing Map algorithm. A combination of RAPD and SSR molecular markers, yielding polymorphic informative loci, was used to determine the genetic characterization among the rootstock varieties 420-A, Schwarzmann, I
Acta Sci., Agron.. Publicado em: 21/10/2019
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2. Growth hormone insensitivity with immune dysfunction caused by a STAT5B mutation in the south of Brazil: evidence for a founder effect
ABSTRACT Homozygous STAT5B mutations causing growth hormone insensitivity with immune dysfunction were described in 10 patients since 2003, including two Brazilian brothers from the south of Brazil. Our objectives were to evaluate the prevalence of their STAT5B mutation in this region and to analyze the presence of a founder effect. We obtained DNA samples f
Genet. Mol. Biol.. Publicado em: 05/06/2017
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3. Genetic structure of populations of Pissodes castaneus (De Geer) (Coleoptera, Curculionidae) using amplified fragment length polymorphism
Genetic structure of populations of Pissodes castaneus (De Geer) (Coleoptera, Curculionidae) using amplified fragment length polymorphism. The objective of this study was to determine the genetic structure of populations of Pissodes castaneus from different areas and on different species of Pinus using the PCR-AFLP technique. Twenty samples were analyzed, re
Rev. Bras. entomol.. Publicado em: 06/12/2013
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4. Placental hydroxymethylation vsmethylation at the imprinting control region 2 on chromosome 11p15.5
In addition to methylated cytosines (5-mCs), hydroxymethylcytosines (5-hmCs) are present in CpG dinucleotide-enriched regions and some transcription regulator binding sites. Unlike methylation, hydroxymethylation does not result in silencing of gene expression, and the most commonly used methods to study methylation, such as techniques based on restriction e
Braz J Med Biol Res. Publicado em: 22/10/2013
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5. Genetic structure and a selected core set of brazilian soybean cultivars
Soybean is one of the most valuable and profitable oil crop species and a thorough knowledge of the genetic structure of this crop is necessary for developing the best breeding strategies. In this study, a representative collection of soybean cultivars recommended for farming in all Brazilian regions was genotyped using 27 simple sequence repeat (SSR) loci.
Genet. Mol. Biol.. Publicado em: 16/08/2013
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6. Avaliação dos efeitos de polimorfismos e da origem parental do alelo na expressão de genes candidatos à característica maciez da carne em bovinos da raça Nelore
Tenderness is the main trait appreciated by consumers of bovine meat, however Nellore animals that comprise the largest part of Brazilian cattle, have lower tenderness when compared with European animals. In this way, it is essential understand the variability of genes associated to tenderness as well as their mechanisms of allelic expression, considering th
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/02/2012
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7. Endosperm genotyping as a strategy to differentiate the allele source in maize heterozygous progeny.
Abstract ? The objective of this work was to distinguish the parental source of alleles in heterozygous progeny using semiquantitative polymerase chain reaction (PCR) in maize endosperm. Endosperms derived from direct and reciprocal single-cross hybrids between maize inbred lines L3 and L1113-01 were genotyped by semiquantitative PCR methodology (SQ-PCR) usi
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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8. Análise de expressão e splicing alternativo do gene Mdh-1 de Apis mellifera L. (Hymenoptera: Apidae)
Mdh-1 enzyme locus coding for cytoplasmic malate dehydrogenase has three common alleles Mdh-1100 (F), Mdh-180 (M) e Mdh-165 (S) and it has been extensively used as racial marker in populational studies of Apis mellifera. Additional isoforms are detected by electrophoretic analysis during ontogenetic development of A. mellifera, indicating differential expres
Publicado em: 2010
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9. Tumores mamários mistos caninos : análise do DNA mitocondrial e da expressão protéica de HER2 e EGFR nos componentes epitelial e mesenquimal.
Benign mixed tumors are histologically characterized by a mixture of epithelial and mesenchymal components. These are common neoplasias in canine mammary glands and can malignize developing carcinomas in benign mixed tumors. The cell origin of the different components that compose mixed tumors and the aspects that determine its malignant transformation remai
Publicado em: 2009
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10. Genética de populações e reinterpretação da história demográfica de remanescentes de quilombos: uma comparação entre três populações do nordeste brasileiro
The remanescentes de quilombos are multiethnic societies whose origins are related to the presence of African slaves in Brazil. The demographic history of these populations has been studied using historical, demographic, ethnographic and genetic sources. The present work aims to evaluate the origin and the impact of recent and ancient waves of immigration up
Publicado em: 2009
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11. Genetic susceptibility to noise induced hearing (oss(NIHL)) / Susceptibilidade genética à perda auditiva induzida por ruído (PAIR)
Chronic exposure to loud noise is the most important environmental cause of hearing impairment among adults. Chronic and irreversible hearing loss due to exposure to noise is named Noise Induced Hearing Loss (NIHL). The aim of this study was to investigate the influence of genetic factors in the susceptibility to NIHL. We compared individuals with and withou
Publicado em: 2008
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12. POLIMORFISMO DO GENE TP53 EM SARCOMAS DE PARTES MOLES NO ADULTO
Soft tissue sarcomas (STS) are tumors with mesodermical origin, comprising about 1% of all adult neoplasms. Because of its effect on the p53 protein coding sequence, and its association with an increased risk for some cancer types, TP53 codon 72 polymorphism has been investigated in several studies. TP53 codon 72 codes for either Arginine (p53Arg), or Prolin
Publicado em: 2008