Plant Germplasm
Mostrando 25-36 de 110 artigos, teses e dissertações.
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25. Genetic diversity in Brazilian soybean germplasm
Abstract Genetic diversity is an essential factor for the success of any plant breeding program and should be considered to ensure genetic gain through breeding. In Brazil, research on the genetic diversity and population structure of soybean is required since the species is an important commodity of the country. The study addressed the genetic diversity and
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-12
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26. Evaluation of total flavonoid content and analysis of related EST-SSR in Chinese peanut germplasm
Abstract As important antioxidants and secondary metabolites in peanut seeds, flavonoids have great nutritive value. In this study, total flavonoid contents (TFC) were determined in seeds of 57 peanut accessions from the province of Hebei, China. A variation of 0.39 to 4.53 mg RT g-1 FW was found, and eight germplasm samples containing more than 3.5 mg RT g-
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-09
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27. Genetic diversity of a Paspalum notatum Flügge germplasm collection
ABSTRACT The objective of this study was to assess the genetic diversity among accessions of Paspalum notatum based on morphological marker traits and identify those morphological traits that contribute most to the variability among accessions. Fifty-three accessions were evaluated for the following traits: length, width, color, and pubescence of sheath; len
R. Bras. Zootec.. Publicado em: 2017-09
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28. Overcoming crossing barriers between jatropha (Jatropha curcas L.) and castor bean (Ricinus communisL.)
Abstract A limitation in improvement of jatropha (Jatropha curcas) has been the low genetic variation among the available germplasm. An alternative to create genetic variability and incorporate desirable traits is through wide crossing. Due to reproductive barriers, wide crossing in jatropha has had limited success. In this experiment, intergeneric hybridiza
Crop Breed. Appl. Biotechnol.. Publicado em: 2017-06
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29. In vitro callus induction and micropropagation of Thymus persicus (Lamiaceae), an endangered medicinal plant
Abstract This is the first attempt towards an efficient regeneration protocol for an endangered and valuable medicinal plant, Thymus persicus using in vitro callus induction and indirect organogenesis. Callus induction was performed on MS medium supplemented with different concentrations of NAA and 2,4-D, alone or in combination with BAP and KN. Maximum cal
Crop Breed. Appl. Biotechnol.. Publicado em: 2016-03
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30. Episomal detection of Banana streak OL virus in single and mixed infection with Cucumber mosaic virus in banana 'Nanicão Jangada'
Banana streak virus (BSV) and Cucumber mosaic virus (CMV) are commonly found in all banana growing-areas of the world. These viruses cause diseases that lead to yield reduction and constrain plant breeding and distribution of Musa germplasm. Most of the diagnostic methods targeting BSV can generate dubious results because of the considerable genetic and sero
Trop. plant pathol.. Publicado em: 2014-08
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31. Morphological phenotypic dispersion of garlic cultivars by cluster analysis and multidimensional scaling
Multivariate techniques have become a useful tool for studying the phenotypic diversity of Germplasm Bank accessions, since they make it possible to combine a variety of different information from these accessions. This study aimed to characterize the phenotypic dispersion of garlic (Allium sativum L.) using two multivariate techniques with different objecti
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-02
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32. Diversidade genética em germoplasma de arroz japonês utilizando marcadores moleculares e agromorfológicos / Genetic diversity of Japanese rice germplasm using molecular markers and agromorphological traits
A caracterização e o entendimento da diversidade e estrutura genética de acessos armazenados em bancos de germoplasma é importante para a sua efetiva utilização em programas de melhoramento. Neste trabalho, 192 acessos japoneses de arroz pertencentes ao Banco de Germoplasma do Departamento de Genética da ESALQ/USP foram caracterizados por 23 descritor
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/05/2012
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33. Análise do desequilíbrio de ligação e da estrutura populacional do germoplasma brasileiro de cana-de-açúcar / Analysis of linkage disequilibrium and population structure from the sugarcane Brazilian germplasm
A cana-de-açúcar (Saccharum spp.) é uma cultura muito importante para a produção de açúcar e álcool no Brasil. Um importante avanço a respeito do seu genoma tem surgido com o emprego de marcadores moleculares, os quais têm sido extensamente utilizados para diversas finalidades, como o mapeamento de QTLs a partir de cruzamentos bi-parentais. Entreta
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 01/02/2012
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34. Desenvolvimento de marcadores microssatélites e caracterização da diversidade genética molecular de acessos de alho (Allium sativum L.) / Development of microsatellite markers and characterization of molecular genetic diversity among garlic (Allium sativum L.) accessions
Garlic is an important crop not only for its culinary attractiveness, but also because of a huge number of medicinal properties. The genetic resources in germplasm require characterization by morphological traits and molecular markers to be effectively used in breeding programs. A novel set of 16 SSR loci specific to garlic were developed. Ten loci were poly
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/10/2011
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35. Diversidade genética em germoplasma de pinhão-manso (Jatropha curcas L.) identificada por marcadores SSR e ISSR / Genetic diversity of physic nut (Jatropha curcas L.) germplasm investigated by SSR and ISSR
O pinhão-manso (Jatropha curcas) é uma espécie arbórea de ampla distribuição geográfica e com qualidades que a tornam importante do ponto de vista natural, ecológico e principalmente sócio-econômico, pois seus frutos são uma valiosa fonte de óleo vegetal com potencial para produção de biodiesel, proporcionando vantagens ambientais, econômicas
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2011
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36. Agro-morphological characterization of upland rice accessions
The agro-morphological characterization is fundamental in order to provide information for plant breeding programs. The aim of the present study was to characterize 146 accessions of upland rice (Oryza sativa L.), based on qualitative and quantitative agro-morphological descriptors. The experiment was conducted in Recife, state of Pernambuco, Brazil, using a
Scientia Agricola. Publicado em: 2011-12