Coefficient Of Parentage
Mostrando 1-9 de 9 artigos, teses e dissertações.
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1. The genetic base of Brazilian soybean cultivars: evolution over time and breeding implications
Genetic diversity is essential for crop breeding and one way to estimate it is through the concept of genetic base, which can be defined as the number of ancestors and their relative genetic contributions (RGC) to each cultivar. The RGC can be estimated through the coefficient of parentage between the ancestors and cultivars. Previous studies determined that
Genet. Mol. Biol.. Publicado em: 25/10/2013
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2. Pedigree analysis on the population of Gir cattle in Northeast Brazil
The objective of this study was to characterize the population genetic structure of the Gir breed in the Northeast of Brazil. The data used in this study were taken from pedigree information of 8,897 Gir animals between 1957 and 2007, obtained from the Brazilian Zebu Breeders Association (ABCZ). The program ENDOG was used to estimate the parameters based on
Revista Brasileira de Zootecnia. Publicado em: 2012-05
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3. Genetic characterization of ninety elite soybean cultivars using coefficient of parentage.
The objective of this work was to estimate the coefficient of parentage and to understand the genetic structure of 90 elite soybean cultivars, which are adapted to different Brazilian environments. A total of 4,005 coefficients of parentage (f) were obtained and used to group the cultivars by UPGMA method. The constructed dendrogram showed several related cu
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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4. Contribuição genética dos ancestrais da soja às cultivares brasileiras / Genetic contribution of soybean ancestors to Brazilian soybean cultivars
A soja é uma oleaginosa com grande destaque na economia mundial. O Brasil é o segundo maior produtor de soja, após os EUA, ressaltando a importância desta cultura para o país. Para que haja progresso genético nesta cultura, é necessário que haja diversidade genética e uma das maneiras de se estimar a diversidade genética de um grupo é através do
Publicado em: 2011
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5. Genetic variability in common wheat germplasm based on coefficients of parentage
The characterization of genetic variability and an estimate of the genetic relationship among varieties are essential to any breeding program, because artificial crosses among less similar parents allow a larger segregation and the combination of different favorable alleles. Genetic variability can be evaluated in different ways, including the Coefficient of
Publicado em: 2010
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6. Genetic similarity among soybean (Glycine max (L) Merrill) cultivars released in Brazil using AFLP markers
Genetic similarity among soybean genotypes was studied by applying the amplified fragment length polymorphism (AFLP) technique to 317 soybean cultivars released in Brazil from 1962 to 1998. Genetic similarity (GS) coefficients were estimated using the coefficient of Nei and Li (Nei and Li 1979), and the cultivars were clustered using the unweighted pair-grou
Genetics and Molecular Biology. Publicado em: 2006
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7. FLUXO GÊNICO E DIVERSIDADE GENÉTICA EM UMA POPULAÇÃO MANEJADA DE MOGNO (Swietenia macrophylla King, Meliaceae) NA AMAZÔNIA ORIENTAL
Mahogany, Swietenia macrophylla, is the most valuable commercial forest species from the Neotropics and has been over-exploited along its range distribution. The present study investigated the patterns of pollen flow, genetic structure and the effects of selective logging on the genetic diversity of one managed mahogany population in Eastern Amazonia. Eight
Publicado em: 2005
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8. Genetic variability in common wheat germplasm based on coefficients of parentage
The characterization of genetic variability and an estimate of the genetic relationship among varieties are essential to any breeding program, because artificial crosses among less similar parents allow a larger segregation and the combination of different favorable alleles. Genetic variability can be evaluated in different ways, including the Coefficient of
Genetics and Molecular Biology. Publicado em: 2002
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9. Retinal has a highly dipolar vertically excited singlet state: implications for vision.
We have measured the effect of an intense electric field on the absorption spectrum of solutions of all-trans retinal, its unprotonated Schiff base with n-butylamine, and the Cl- salt of this protonated Schiff base. The field-induced change in extinction coefficient as a function of wavelength was analyzed to determine the ground-state dipole moment (mug), t