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	Provedor de dados Genet. Mol. Biol. (3) Ciencia e Investigación Agraria (1) Infoteca-e (1) AgEcon (1) Braz. J. Plant Physiol. (1) Rev. Bras. Ciênc. Solo (1) Mais... Autor Asakura,Nobuaki (1) Dey,Jayashree (1) Dey,Surjendu K. (1) Donzeli,Vanessa Polon (1) FERNANDES, J. M. C. (1) Freitas,José Guilherme (1) Freitas,Sueli dos Santos (1) Gallicia, L. (1) Gallo,Paulo Boller (1) Gurel,Filiz (1) Karakas,Ozge (1) Lutz,Eugenio (1) Merchán,Héctor (1) Morant,Alicia (1) Mori,Naoki (1) Nakamura,Chiharu (1) Nurit, E. (1) Ohtsuka,Ichiro (1) Ouyang,Zhongming (1) PICININI, E. C. (1) Mais... Palavra-chave Triticum (8) Copy number variation (2) Genetic diversity (2) Adubação nitrogenada (1) Aegilops (1) Biodiversity (1) Biolistics (1) Catalase (1) Chemical control (1) Colonização radicular (1) Correlation (1) Crop Production/Industries (1) DNA hybridization (1) Diazotróficos endofíticos (1) Disease. (1) EST (1) Epidemiology (1) F02 (1) F30 (1) Forage yield (1) Mais... Tipo do documento Info:eu-repo/semantics/article (5) Documentos (INFOTECA-E) (1) Journal article (1) Report (1) Ano 2011 (1) 2010 (2) 2009 (1) 2008 (1) 2007 (1) 2005 (1) 1988 (1) Mais... País Brazil (6) Chile (1) United States (1) Idioma Inglês (6) Português (2)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 8 Primeira ... 1 ... Última Sequence diversity and copy number variation of Mutator-like transposases in wheat Genet. Mol. Biol. Asakura,Nobuaki; Yoshida,Shinya; Mori,Naoki; Ohtsuka,Ichiro; Nakamura,Chiharu. Partial transposase-coding sequences of Mutator-like elements (MULEs) were isolated from a wild einkorn wheat, Triticum urartu, by degenerate PCR. The isolated sequences were classified into a MuDR or Class I clade and divided into two distinct subclasses (subclass I and subclass II). The average pair-wise identity between members of both subclasses was 58.8% at the nucleotide sequence level. Sequence diversity of subclass I was larger than that of subclass II. DNA gel blot analysis showed that subclass I was present as low copy number elements in the genomes of all Triticum and Aegilops accessions surveyed, while subclass II was present as high copy number elements. These two subclasses seemed uncapable of recognizing each other for transposition. The... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mutator-like transposase; Sequence diversity; Copy number variation; Triticum; Aegilops. Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000300022 Exploiting a wheat EST database to assess genetic diversity Genet. Mol. Biol. Karakas,Ozge; Gurel,Filiz; Uncuoglu,Ahu Altinkut. Expressed sequence tag (EST) markers have been used to assess variety and genetic diversity in wheat (Triticum aestivum). In this study, 1549 ESTs from wheat infested with yellow rust were used to examine the genetic diversity of six susceptible and resistant wheat cultivars. The aim of using these cultivars was to improve the competitiveness of public wheat breeding programs through the intensive use of modern, particularly marker-assisted, selection technologies. The F2 individuals derived from cultivar crosses were screened for resistance to yellow rust at the seedling stage in greenhouses and adult stage in the field to identify DNA markers genetically linked to resistance. Five hundred and sixty ESTs were assembled into 136 contigs and 989 singletons.... Tipo: Info:eu-repo/semantics/article Palavras-chave: Biodiversity; EST; Genetic diversity; Triticum; Yellow rust. Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572010000400019 Nucleotide diversity and molecular evolution of the WAG-2 gene in common wheat (Triticum aestivum L) and its relatives Genet. Mol. Biol. Wei,Shuhong; Peng,Zhengsong; Zhou,Yonghong; Yang,Zaijun; Wu,Kai; Ouyang,Zhongming. In this work, we examined the genetic diversity and evolution of the WAG-2 gene based on new WAG-2 alleles isolated from wheat and its relatives. Only single nucleotide polymorphisms (SNP) and no insertions and deletions (indels) were found in exon sequences of WAG-2 from different species. More SNPs and indels occurred in introns than in exons. For exons, exons+introns and introns, the nucleotide polymorphism Π decreased from diploid and tetraploid genotypes to hexaploid genotypes. This finding indicated that the diversity of WAG-2 in diploids was greater than in hexaploids because of the strong selection pressure on the latter. All dn/ds ratios were < 1.0, indicating that WAG-2 belongs to a conserved gene affected by negative selection. Thirty-nine of... Tipo: Info:eu-repo/semantics/article Palavras-chave: Copy number variation; Genetic diversity; Molecular evolution; Triticum; WAG-2. Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572011000400013 Estratégias para o controle de doenças do trigo. Infoteca-e REIS, E. M.; FERNANDES, J. M. C.; PICININI, E. C.. Causas das principais doenças do trigo; Princípios fundamentais de epidemiologia; Conceitos; Fatores determinantes de doenças parasitárias; Predominância dos patógenos do trigo segundo as regiões tritícolas brasileiras; Classificação dos fungos patogênicos do trigo, segundo seus requerimentos nutricionais e suas implicações na sobrevivência e na estratégia de controle; Biotróficos; Necrotróficos; Fotos; Estratégias de controle; Rotação de culturas; Eliminação de plantas voluntárias; Eliminação de hospedeiros secundários; Uso de sementes sadias; Uso de cultivares resistentes; Uso de fungicidas; Conclusões. Tipo: Documentos (INFOTECA-E) Palavras-chave: Disease.; Triticum; Chemical control; Epidemiology; Wheat.. Ano: 1988 URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/847293 Laboratory Protocols 2008: Maize Nutrition Quality and Plant Tissue Analysis Laboratory AgEcon Gallicia, L.; Nurit, E.; Rosales, A.; Palacios-Rojas, N.. Tipo: Report Palavras-chave: Zea mays; Maize; Wheats; Triticum; Transgenic plants; Genetic engineering; Gene transfer; Genetic transformation; DNA hybridization; Phenotypes; Selection; Tissue culture; In vitro culture; Biolistics; Research projects; Methods; Molecular cloning; PCR; Crop Production/Industries; F02; F30. Ano: 2009 URL: http://purl.umn.edu/56177 Ocorrência e efeito de bactérias diazotróficas em genótipos de trigo Rev. Bras. Ciênc. Solo Sala,Valéria Marino Rodrigues; Freitas,Sueli dos Santos; Donzeli,Vanessa Polon; Freitas,José Guilherme; Gallo,Paulo Boller; Silveira,Adriana Parada Dias da. A pesquisa sobre bactérias diazotróficas na cultura do trigo tem demonstrado a necessidade de associar bactérias eficientes a genótipos promissores, os quais se beneficiariam dessa associação. Em um experimento com parcelas subdivididas, instalado em condições de campo, em Mococa (SP), empregando os tratamentos: três doses de N (0, 60 e 120 kg ha-1) e três genótipos de trigo (IAC-24, ITD-19 e IAC-355), foi avaliada a ocorrência de microrganismos diazotróficos endofíticos em raízes desinfestadas superficialmente, utilizando-se três meios de cultivo distintos, NFb, JNFb e LGI-P. Somente para o genótipo IAC-355, houve um ajuste linear ascendente da quantidade de bactérias diazotróficas com o aumento na quantidade de N adicionada, apesar de o mesmo genótipo... Tipo: Info:eu-repo/semantics/article Palavras-chave: Diazotróficos endofíticos; Promoção de crescimento; Triticum; Isolados homólogos; Adubação nitrogenada; Colonização radicular. Ano: 2005 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832005000300004 Changes in the antioxidative enzyme activities and lipid peroxidation in wheat seedlings exposed to cadmium and lead stress Braz. J. Plant Physiol. Dey,Surjendu K.; Dey,Jayashree; Patra,Sanjukta; Pothal,Debasmita. Wheat seedlings were grown in presence of CdCl2 (0-200 µM) and Pb(NO3)2 (0-2000 µM) separately. The growth of metal-treated seedlings was significantly depressed. The activities of antioxidative enzymes namely superoxide dismutase (SOD), catalase (CAT) and guaiacol peroxidase (POX) were altered both in root and shoot tissues of 7-d-old seedlings. Under Cd stress, SOD activity in roots was undetectable even at the lowest Cd concentration (50 µM) whereas in shoots it declined sharply with increasing Cd levels. The activity of CAT declined to a greater extent in roots than in shoots. Even though the POX activity increased nine times in shoots, a decreasing trend was observed in root tissues due to Cd stress. Under Pb stress, the induction in SOD activity and... Tipo: Info:eu-repo/semantics/article Palavras-chave: Catalase; Heavy metals; Peroxidase; Superoxide dismutase; Triticum. Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1677-04202007000100006 Double purpose wheat: correlation analysis of forage yield components Ciencia e Investigación Agraria Morant,Alicia; Merchán,Héctor; Lutz,Eugenio. The direct and relative contribution of characters associated with forage production were evaluated in a comparative assay of wheat cultivars to contribute to an ideotype defnition when selecting double purpose material for forage and grain production. Simple correlations for all of the possible combinations among the measured variables were calculated. The correlation partition method, known as path coeffcient, was applied to determine the causes of this association and to measure the relative importance of each factor. Forage production during the vegetative period was measured for each variety at the dates in which the apex reached the double ridge state (3 - 4 in the Nerson scale). The double ridge state was considered the deadline of the vegetative... Tipo: Journal article Palavras-chave: Correlation; Forage yield; Path coeffcient analysis; Triticum; Yield components; Wheat. Ano: 2010 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202010000100005 Registros recuperados: 8 Primeira ... 1 ... Última

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