Autotetraploid
Mostrando 1-12 de 28 artigos, teses e dissertações.
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1. True polyploid meiosis in the human male
Abstract Polyploidy does not usually occur in germinal cells of mammals and other higher vertebrates. We describe a unique example of mosaic autotetraploidy in the meiosis of a human male. Although the original observations were made in the late 1960s, we did not publish them at that time, because we expected to detect further examples that could be describe
Genet. Mol. Biol.. Publicado em: 21/05/2018
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2. Interspecific hybrids between Paspalum plicatulum and P. oteroi: a key tool for forage breeding
ABSTRACT Grama-tio-pedro (Paspalum oteroi Swallen) is a rare stoloniferous grass of the Plicatula group of Paspalum, well adapted to continuous grazing in areas subject to seasonal flooding in the Pantanal region, in central western Brazil. The species is a facultative apomictic (asexual reproduction by seed) tetraploid, sporadically cultivated on Pantanal f
Sci. agric. (Piracicaba, Braz.). Publicado em: 2016-08
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3. Biometrical analysis and selection of tetraploid progenies of Panicum maximum using mixed model methods.
The objectives of this work were to estimate the genetic and phenotypic parameters and to predict the genetic and genotypic values of the selection candidates obtained from intraspecific crosses in Panicum maximum as well as the performance of the hybrid progeny of the existing and projected crosses. Seventy-nine intraspecific hybrids obtained from artificia
Pesquisa Agropecuária Brasileira. Publicado em: 2011
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4. Obtenção de plantas autotetraplóides de variedades de porta-enxertos de citros / Obtention of autotetraploids plants of varieties of rootstocks of Citrus
The Brazilian citriculture stands out as the greatest expression worldwide, with about 27.9% of world production of oranges and 59% of global production of frozen orange juice concentrate. However, it presents a vulnerability that is the predominance of a single species of rootstock, the Cravolemon, with approximately 85% of citrus planted on it. Thus, great
Publicado em: 2008
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5. A novel statistical method for assessing SSR variation in autotetraploid alfalfa (Medicago sativa L.)
The level of variation of simple sequence repeat (SSR) markers in cultivated alfalfa from American, Australian and Chinese sources was evaluated using a novel autotetraploid statistical method to calculate the effective number of alleles, the allele frequencies and heterozygosity. We used 19 SSR primers to screen seven polymorphic SSR loci in 320 plants from
Genetics and Molecular Biology. Publicado em: 2007-03
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6. Genetic Variation and Random Drift in Autotetraploid Populations
The rate of decay of genetic variation is determined for randomly mating autotetraploid populations of finite size, and the equilibrium homozygosity under mutation and random drift is calculated. It is shown that heterozygosity is lost at a slower rate than in diploid populations, and that the equilibrium heterozygosity with mutation and random drift is high
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7. Linkage in Autotetraploid Maize
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8. Incompatibility in Autotetraploid Trifolium Pratense
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9. Double Reduction in Autotetraploid Maize
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10. The Correlation between Relatives in a Simple Autotetraploid Population
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11. Oppositional Allelism in Diploid and Autotetraploid Trifolium Hybridum L
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12. Double and Single Backcross Linkage Estimates in Autotetraploid Maize