Molecular Breeding Values
Mostrando 1-12 de 20 artigos, teses e dissertações.
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1. Resistance of maize landraces from Brazil to fall armyworm (Lepidoptera: Noctuidae) in the winter and summer seasons
ABSTRACT The fall armyworm (Spodoptera frugiperda) is a major maize (Zea mays L.) pest in Brazil, whose larvae cause losses from plant emergence to harvesting stage. This pest has been controlled almost exclusively with chemical insecticides and Bt plants (transgenics); however, resistance evolution has been detected to these two control tactics. Therefore,
Bragantia. Publicado em: 2020-09
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2. New insights into genomic selection through population-based non-parametric prediction methods
ABSTRACT: Genome-wide selection (GWS) is based on a large number of markers widely distributed throughout the genome. Genome-wide selection provides for the estimation of the effect of each molecular marker on the phenotype, thereby allowing for the capture of all genes affecting the quantitative traits of interest. The main statistical tools applied to GWS
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-07
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3. Combined index of genomic prediction methods applied to productivity
RESUMO: A cultura do arroz tem grande importância nacional e mundial por ser um dos cereais mais produzidos e consumidos no mundo, caracterizando-se como o principal alimento de mais da metade da população mundial. Em função de sua importância alimentar, desenvolver métodos eficientes que visam a predição e a seleção de indivíduos geneticamente
Cienc. Rural. Publicado em: 19/06/2019
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4. Molecular marker assisted selection for increasing inbreeding in S1 populations of cassava
Abstract The objective of the present work was to use MAS in self-pollinated cassava populations for obtaining individuals with high inbreeding (f) aimed at rapid development of partial inbred lines. Three progenies (F0222, F1378 and F1662) were self-pollinated, generating a total of 233 S1 individuals. The progenies and the S1 individuals were evaluated in
An. Acad. Bras. Ciênc.. Publicado em: 01/11/2018
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5. Genetic diversity assessed by microsatellite markers in sweet corn cultivars
Information on genetic diversity is essential to the characterization and utilization of germplasm. The genetic diversity of twenty-two sweet corn cultivars (seventeen open-pollinated varieties, OPV, and five hybrids, H) was investigated by applying simple sequence repeat markers. A total of 257 primers were tested, of which 160 were found to be usable in te
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-12
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6. Chemical management in fungicide sensivity of Mycosphaerella fijiensis collected from banana fields in México
The chemical management of the black leaf streak disease in banana caused by Mycosphaerella fijiensis (Morelet) requires numerous applications of fungicides per year. However this has led to fungicide resistance in the field. The present study evaluated the activities of six fungicides against the mycelial growth by determination of EC50 values of strains co
Braz. J. Microbiol.. Publicado em: 2014
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7. Genetic diversity in a world germplasm collection of tall fescue
Festuca arundinacea Schreb., commonly known as tall fescue, is a major forage crop in temperate regions. Recently, a molecular analysis of different accessions of a world germplasm collection of tall fescue has demonstrated that it contains different species from the genus Festuca and allowed their rapid classification into the three major morphotypes (Conti
Genet. Mol. Biol.. Publicado em: 17/05/2013
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8. Seleção assistida por marcadores genéticos de características de carcaça em bovinos da raça Nelore / Genetic marker assisted selection of carcass traits in Nellore cattle
A pecuária de corte brasileira tem sofrido grande pressão devido às questões ambientais, às exigências dos mercados consumidores por carne de qualidade e rígidos padrões sanitários. Esses fatores aumentam a importância da melhoria da eficiência produtiva da pecuária de corte. A proposta do presente trabalho foi avaliar o efeito da inclusão dos v
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/08/2012
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9. Mating system parameters in Stylosanthes guianensis (Aubl.) Sw. based on RAPD markers
This study investigated the mating systems in Stylosanthes guianensis, an important tropical forage legume. Twelve progenies were analyzed with 21 polymorphic random amplified polymorphic DNA (RAPD) loci. The mating parameters estimated using the mixed mating model showed that this population practices a mixture of selfing (61.4%) and out-crossing (38.6%) fo
African Journal of Biotechnology. Publicado em: 2011
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10. Seleção genômica ampla no melhoramento vegetal / Genome wide selection in plant breeding
The Genome Wide selection was proposed in 2001 to predict the phenotype values based in molecular markers information. In a previus step, the effect of each of each marker in controlling the genetic variance is estimated. This technology has already been used in animals, however, no report of its use was made for plants. This work aimed to study the impact o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/04/2010
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11. Analysis of storage proteins of wild rice Oryza glumaepatula strains and interspecific Oryza sativa x Others Glumaepatula / Análise das proteínas de reserva do arroz silvestre oryza glumaepatula e de linhagens interespecíficas oryza sativa x o. Glumaepatula
The objective of this dissertation was to analyze quantitative and qualitatively the total storage protein content and its fractions albumin, globulin, prolamin and glutelin from the grain of 29 genotypes of the wild rice Oryza glumaepatula and 70 interspecific lines backcross 2 obtained from the cross O. sativa x O. glumaepatula. From these lines, 34 BC2F8
Publicado em: 2010
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12. Complemental tests in semen and evaluation of the anionic proteins and peptides differentially synthesized in seminal plasma of Nelore bulls classified as sound and unsound for breeding / Testes complementares em sêmen e avaliação da síntese diferencial de proteínas e peptídeos aniônicos em plasma seminal de touros da raça Nelore classificados em aptos e inaptos à reprodução
The main analyses performed routinely to assess the sperm quality are the spermatic motility and morphology for the measurement bulls fertility. Several complementary techniques are used to improve bulls fertility evaluation. Each technique is related to different aspects of sperm quality and their results are not yet fully understood. Four experiments were
Publicado em: 2009