Genotypic Variation
Mostrando 1-12 de 168 artigos, teses e dissertações.
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1. Albinism: epidemiology, genetics, cutaneous characterization, psychosocial factors
Abstract Oculocutaneous albinism is an autosomal recessive disease caused by the complete absence or decrease of melanin biosynthesis in melanocytes. Due to the reduction or absence of melanin, albinos are highly susceptible to the harmful effects of ultraviolet radiation and are at increased risk of actinic damage and skin cancer. In Brazil, as in other par
An. Bras. Dermatol.. Publicado em: 09/12/2019
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2. Analysis of Genotypic Variability in Avena spp. Regarding Allelopathic Potentiality
RESUMO: A reconhecida atividade alelopática de aveias como plantas de cobertura do solo leva ao estudo do potencial de seus germoplasmas. O objetivo deste trabalho foi verificar se há variabilidade genotípica em Avena spp. quanto à atividade alelopática. Os extratos de A. strigosa Agro Quaraí, Agro Esteio, Embrapa 139, AF 12104, AF 12109, AF 12202, AF
Planta daninha. Publicado em: 17/10/2019
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3. Genotypic diversity of Streptococcus mutans isolated from preschoolers with and without early dental care
Resumo Introdução Streptococcus mutans (S. mutans) apresentam ampla diversidade genotípica, mas o papel desta variação ainda é pouco compreendido. Objetivo Avaliar a diversidade genotípica de S. mutans em pré-escolares com e sem assistência odontológica precoce e associá-la à experiência de cárie dentária. Material e método Participaram da
Rev. odontol. UNESP. Publicado em: 03/06/2019
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4. Correlations between agronomic traits and path analysis for silage production in maize hybrids
ABSTRACT The aim of the current study is to estimate the correlation coefficients and the consequence of genotypic correlations on direct and indirect effects through path analysis between agronomic traits of maize hybrids used for silage production. Eight (8) topcross hybrids and seven (7) checks were analyzed in completely randomized blocks, with six repli
Bragantia. Publicado em: 22/03/2018
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5. An integrated model to accelerate the development of seed-propagated varieties of globe artichoke
Abstract Globe artichoke (Cynara cardunculus var. scolymus) is a cross-pollinated, highly heterozygous species, which is conventionally propagated vegetatively. A scheme is described here which combines phenotypic with genotypic selection to fast track the development of a seed-propagated variety. The scheme was tested by making three selections, on a phenot
Crop Breed. Appl. Biotechnol.. Publicado em: 2018-03
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6. Use of microsatellites for evaluation of genetic diversity in cherry tomato
ABSTRACT Much of the diversity of tomato is found in wild forms, the most important being the Solanum lycopersicum L. var. cerasiforme and S. pimpinellifolium. The objective of this research was to assess the genetic diversity of 30 introductions of cherry tomato with 36 microsatellite molecular markers. The study was conducted at the Plant Transformation Re
Bragantia. Publicado em: 15/05/2017
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7. Selection in energy cane families
Abstract The objective of this study was to identify superior parents for crosses and the best families to breed new clones of energy cane. The best-performing parents were RB867515, RB93509, KRAKATAU, IM76-228, IM76-229, and US85-1008. The heritability and accuracy values for the traits tons of cane per hectare, fiber, and sucrose content indicate high cor
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-12
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8. Molecular variations in Vibrio alginolyticus and V. harveyi in shrimp-farming systems upon stress
A study was performed to investigate the genomic variations in the shrimp farm isolates of Vibrio alginolyticus and V. harveyi when the isolates were subjected to environmental stress. Samples of shrimps, water and sediment were collected from Southern Indian coastal shrimp farms. Vibrio isolates were biochemically identified and confirmed using 16S rDNA and
Braz. J. Microbiol.. Publicado em: 27/10/2015
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9. Can the critical temperature for photochemical damage in common bean plants be changed after a drought event?
Low water availability and high temperatures occur under field conditions and we hypothesize that the critical temperature for photochemical damage (TC) in common bean (Phaseolus vulgaris L.) plants is increased by the occurrence of previous water deficit in a genotype-dependent manner. Five common bean cultivars A320, A222, Carioca, BAT477 and Ouro Negro we
Bragantia. Publicado em: 21/08/2015
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10. Root growth and distribution in sugarcane cultivars fertigated by a subsurface drip system
Despite of the agronomic importance for water management, few studies of sugarcane roots have been performed under field conditions during the crop cycle. The aim of this study was to determine the cumulative root density (LA), root distribution on soil profile and the effective rooting depth (ERD) for three sugarcane cultivars using the minirhizotron method
Bragantia. Publicado em: 29/04/2015
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11. Genotypic variation of traits related to quality of cassava roots using affinity propagation algorithm
The conservation, sustainable evaluation and use of cassava (Manihot esculenta Crantz) genetic resources are essential to the development of new commercial varieties. This study aimed to evaluate the quality of cassava roots and to estimate genetic variation and clustering in cassava germplasm using the Affinity Propagation algorithm (AP), which is based on
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
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12. Genetic parameters of agronomic characters in Panicum maximum hybrids
This study was carried out with the objective of estimating the genetic parameters of agronomic traits in Panicum maximum hybrids. Genotypes obtained from the crosses between the sexual plants S10 and S12 and cultivars Tanzania and Mombasa were evaluated. The design was an incomplete blocks design with two replicates (clones) and 33 blocks. Each block was co
R. Bras. Zootec.. Publicado em: 2013-04