Full Sib Family
Mostrando 1-12 de 27 artigos, teses e dissertações.
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1. Genetic parameters and selection of sugarcane in early selection stages for resistance to sugarcane borer Diatraea saccharalis
Abstract A T1 (sugarcane population originating from true seeds) and T2 (first sugarcane clonal stage) population were used to estimate genetic parameters and compare selection strategies for Diatraea saccharalis (Lepidoptera: Crambidae) resistance in sugarcane. In the T1 stage, heritability at the family mean level (h²=0.77) was higher than individual geno
Crop Breed. Appl. Biotechnol.. Publicado em: 01/08/2019
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2. Selection among and within full-sib families of elephant grass for energy purposes
Abstract Pennisetum purpureum Schum. has been a key alternative as an energy source in Brazil because of its higher dry matter accumulation and fiber content. This research aimed to select superior individuals of P. purpureum for energy purposes using among-and-within family selection. The study was carried out in Campos dos Goytacazes- RJ (Brazil), using ei
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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3. Mapeamento de QTLs em progênie de irmãos-completos de cana-de-açúcar utilizando imputação múltipla / QTL mapping in a full-sib family of sugarcane using multiple imputation
O mapeamento de QTLs em cana-de-açúcar (Saccharum spp.) é de grande importância para entendimento da arquitetura genética de caracteres quantitativos e aperfeiçoamento dos programas de melhoramento. Entretanto uma situação comum é a ocorrência de genótipos de marcadores não observados, ocasionando viés na estimativa e localização de possíveis
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 30/01/2012
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4. Model selection for quantitative trait loci mapping in a full-sib family
Statistical methods for mapping quantitative trait loci (QTLs) in full-sib forest trees, in which the number of alleles and linkage phase can vary from locus to locus, are still not well established. Previous studies assumed that the QTL segregation pattern was fixed throughout the genome in a full-sib family, despite the fact that this pattern can vary amon
Genetics and Molecular Biology. Publicado em: 13/07/2012
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5. Selection via simulated individual BLUP based on family genotypic effects in sugarcane.
The objective of this work was to propose a new selection strategy for the initial stages of sugarcane improvement, based on the methodology 'simulated individual BLUP (BLUPIS)', which promotes a dynamic allocation of individuals selected in each full-sib family, using BLUP as a base for both the genotypic effects of the referred families and plot effects. T
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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6. Genomic selection in Eucalyptus: marker assisted selection coming to reality in forest trees.
Genomic selection (GS) involves selection decisions based on genomic breeding values estimated as the sum of the effects of genome-wide markers capturing most QTLs for the target trait(s). GS is revolutionizing breeding practice for complex trait in domestic animals. The same approach and concepts can be readily applied to forest tree breeding. Trees also ha
PLANT & ANIMAL GENOMES CONFERENCE. Publicado em: 2011
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7. 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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8. Seleção dentro de família de cana-de-açúcar via BLUP individual simulado / Selection within sugarcane families via simulated individual BLUP
The objective of this study was to assess the efficiency of the simulated individual BLUP (BLUPIS) method in selecting genotypes within families of full sibs of sugarcane in the plant-cane and ratoon stages, through comparison with selection using the individual BLUP method (BLUPI). In parallel, the optimal number of genotypes to be selected in the best fami
Publicado em: 2009
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9. Development and application of genétic model for QTL mapping in a full sib family / Desenvolvimento de modelo genético-estatístico para mapeamento de QTLs em progênie de irmãos completos, com aplicação em cana-de-açúcar
Sugarcane has great economic importance to Brazil, which is worlds largest producer. Currently, sugarcane receives worldwide attention due to the economic and environmental issues generated by its main product, ethanol. In this context, there is a scenario of potential growth for the culture, in which breeding can contribute to the development of new cultiva
Publicado em: 2009
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10. Mapeamento genético no camarão marinho Litopenaeus Vannamei (Crustacea, Decapoda)
Two genetic linkage maps were constructed referent to two full-sib families (G1 and G2) of the marine shrimp species Litopenaeus vannamei, and the integration of these maps was accomplished. The mapping was based on polymorphic markers derived from nine AFLP (Amplified Fragment Length Polymorphism) primers. A total of 103 and 59 segregating polymorphic marke
Publicado em: 2009
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11. Avaliação de delineamentos genéticos em programas de melhoramento populacional recorrente, por meio de simulação / Evaluation of genetic delineation in programs of recurrent population improvement, through simulation
Comstock and Robinson (1948) have suggested the evaluation of full-sib lineages obtained by crossing m male with f female distinct groups, in order to esteem the additive components, considering the dominance of the genotypic variance, and also the average degree of dominance. This system of controlled crossings was called Delineation I. The objective of thi
Publicado em: 2006
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12. Mapas de ligação e identificação de Locos Controladores de Características Quantitativas (QTLs) associados à resistência a Crinipellis perniciosa em acessos de cacaueiro (Theobroma cacao) originários da Amazônia Brasileira / Linkage Maps and Identification of Quantitative Trait Loci (QTL) associated with resistance to Crinipellis perniciosa in cacao (Theobroma cacao) acessions from the Brazilian Amazon
The witches broom (Crinipellis perniciosa) is the most important disease of cacao in Brazil. The main method of disease control is the use of resistant cultivars, however due to the narrow genetic basis found in commercial cacao growing areas, the resistance is frequently broken. The objectives of this work were: to select new sources of resistance to C. p
Publicado em: 2006