Reaction Norm
Mostrando 1-12 de 12 artigos, teses e dissertações.
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1. Selection of reference genes for expression analysis in the entomophthoralean fungus Pandora neoaphidis
Abstract The selection of suitable reference genes is crucial for accurate quantification of gene expression and can add to our understanding of host–pathogen interactions. To identify suitable reference genes in Pandora neoaphidis, an obligate aphid pathogenic fungus, the expression of three traditional candidate genes including 18S rRNA(18S), 28S rRNA(28
Braz. J. Microbiol.. Publicado em: 2016-03
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2. Sensibilidade de valores genéticos às modificações de níveis de proteína das dietas e avaliação de carcaça de codornas de corte em crescimento / Sensibility of genetic values to modifications of diet protein levels and the evaluation of meat quail carcass in growth
The objective of this study was to investigate the presence of genotype X dietary protein level, by reaction norm models, on the period of growth and evaluate the performance of two strains of quails belonging to Breeding Program Poultry of the Federal University of Viçosa. Body weights were evaluated at 21, 35 and 42 days of age, with levels 24 to 33% crud
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/11/2011
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3. Interação genótipo-ambiente em bovinos de corte compostos / Genotype-environment interaction in composite beef cattle
Objetivou-se com o presente estudo foram caracterizar e definir ambientes homogêneos de produção de bovinos de corte compostos no Brasil com relação às variáveis climáticas e geográficas, utilizando técnicas exploratórias multivariadas. Verificar a presença de interação genótipo-ambiente (GxE) nas características peso ao nascimento (PN), peso
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/07/2011
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4. Evaluation of reference genes for real-time PCR studies of Brazilian Somalis sheep infected by gastrointestinal nematodes.
Precise normalization with reference genes is necessary, in order to obtain reliable relative expression data in response to gastrointestinal nematode infection. By using sheep from temperate regions as models, three reference genes, viz., ribosomal protein LO (RPLO), glyceraldehyde 3-phosphate dehydrogenase (GAPDH) and succinate dehydrogenase complex subuni
Genetics and Molecular Biology. Publicado em: 2011
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5. Síntesis y caracterización de espumas flexibles de poliuretano obtenidas a partir de aceite de castor maleinizado
In this work, the synthesis of polyurethane flexible foam is realized with the experimental design Taguchi, using castor oil with and without maleinization. The kinetic reaction of oil esterification was monitored by estimating the number of acid groups (ASTM D4662 - 03), and the mechanical properties of the foam were studied, including density, tensile resi
Polímeros. Publicado em: 2009-06
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6. Genotype by environment interaction for 450-day weight of Nelore cattle analyzed by reaction norm models
Genotype by environment interactions (GEI) have attracted increasing attention in tropical breeding programs because of the variety of production systems involved. In this work, we assessed GEI in 450-day adjusted weight (W450) Nelore cattle from 366 Brazilian herds by comparing traditional univariate single-environment model analysis (UM) and random regress
Genetics and Molecular Biology. Publicado em: 06/03/2009
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7. Duffy gene polymorphism study in patients with malignant hypertension and blood donors / Estudo dos polimorfismos do gene DUFFY em pacientes com hipertensão maligna e doadores de sangue
Essential hypertension has a high prevalence worldwide and the has genetic and environment causes. Searching genetics correlation for hypertension, a potential role of DARC (Duffy Antigen Receptor of Chemokines) was described as an Interleukine-8 receptor in endothelium and that this interaction might contribute for the pathogenesis of pre-eclampsia. DARC is
Publicado em: 2008
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8. Pigmentation in Drosophila mediopunctata: phenotypic and heritability / Pigmentação em Drosophila mediopunctata : plasticidade fenotipica e herdabilidade
Drosophila mediopunctata é uma espécie pertencente ao grupo tripunctata, que tem como traço marcante um padrão de pigmentação abdominal, sob a forma de três pintas na região mediana dos últimos tergitos. Nesta espécie, este padrão é variável, havendo indivíduos com quatro fenótipos, que vão de zero a três pintas. Já se observou que esta var
Publicado em: 2007
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9. Reaction norms with bifurcations shaped by evolution.
Two versions of a model for the evolution of seasonal polyphenism investigate the evolution of reaction norm bifurcation and branching. The first version is without a specific submodel for morphological development and the second has an explicit developmental map. Version 1 is evolutionarily relatively unconstrained: (i) reaction norms are specified by matri
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10. Plasticity in probabilistic reaction norms for maturation in a salmonid fish
The relationship between body size and the probability of maturing, often referred to as the probabilistic maturation reaction norm (PMRN), has been increasingly used to infer genetic variation in maturation schedule. Despite this trend, few studies have directly evaluated plasticity in the PMRN. A transplant experiment using white-spotted charr demonstrated
The Royal Society.
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11. Induced defenses in response to an invading crab predator: An explanation of historical and geographic phenotypic change
The expression of defensive morphologies in prey often is correlated with predator abundance or diversity over a range of temporal and spatial scales. These patterns are assumed to reflect natural selection via differential predation on genetically determined, fixed phenotypes. Phenotypic variation, however, also can reflect within-generation developmental r
The National Academy of Sciences.
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12. The Genetical and Environmental Determination of Phally Polymorphism in the Freshwater Snail Bulinus Truncatus
In some species of self-fertile pulmonate snails, two sexual morphs co-occur in natural populations: regular individuals and aphallic individuals that cannot transmit sperm to other snails. Purely aphallic populations therefore reproduce obligatorily by selfing. Understanding the evolution of aphally and selfing in these snails requires a precise knowledge o