Gene D Dwarf
Mostrando 1-12 de 26 artigos, teses e dissertações.
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1. OCORRÊNCIA DE NANISMO EM PLANTA DE TOMATEIRO DO TIPO GRAPE
RESUMO: O conhecimento genético de manifestações fenotípicas de características de importância agronômica em vegetais é uma atividade de grande importância, cujos resultados são amplamente utilizados por fitomelhoristas. O objetivo do presente trabalho foi estudar o tipo de segregação genética que ocorre ao se cruzar um genótipo anão versus ge
Rev. Caatinga. Publicado em: 2015-12
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2. Complexo viral do alho: identificação de Potyvirus e Carlavirus na região central do Brasil
Infecções virais em alho são normalmente causadas por um complexo viral. Neste estudo, um complexo viral de alho, coletado em campo, foi purificado. Procedeu-se à amplificação por RT-PCR usando oligonucleotídeos desenhados para regiões-consenso dos genes das proteínas capsidiais de Onion yellow dwarf virus, estirpe do alho e de Leek yellow stripe vi
Fitopatologia Brasileira. Publicado em: 2001-09
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3. Rice gibberellin-insensitive dwarf mutant gene Dwarf 1 encodes the α-subunit of GTP-binding protein
A rice Dwarf 1 gene was identified by using a map-based cloning strategy. Its recessive mutant allele confers a dwarf phenotype. Linkage analysis revealed that a cDNA encoding the α-subunit of GTP-binding protein cosegregated with d1 in 3,185 d1 segregants. Southern hybridization analysis with this cDNA as a probe showed different band patterns in several d
The National Academy of Sciences.
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4. The tomato Dwarf gene isolated by heterologous transposon tagging encodes the first member of a new cytochrome P450 family.
To transposon tag the tomato Dwarf (D) gene, a tomato line that carries a T-DNA containing a maize Activator (Ac) transposable element closely linked to D was pollinated with a stock homozygous for the d mutation. Hybrid seedlings were screened for dwarf progeny, and three independent dwarf lines were obtained. Two of these lines showed inheritance of a rece
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5. A Novel Cytochrome P450 Is Implicated in Brassinosteroid Biosynthesis via the Characterization of a Rice Dwarf Mutant, dwarf11, with Reduced Seed Length
We have characterized a rice (Oryza sativa) dwarf mutant, dwarf11 (d11), that bears seeds of reduced length. To understand the mechanism by which seed length is regulated, the D11 gene was isolated by a map-based cloning method. The gene was found to encode a novel cytochrome P450 (CYP724B1), which showed homology to enzymes involved in brassinosteroid (BR)
American Society of Plant Biologists.
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6. A Rice Brassinosteroid-Deficient Mutant, ebisu dwarf (d2), Is Caused by a Loss of Function of a New Member of Cytochrome P450
We characterized a rice dwarf mutant, ebisu dwarf (d2). It showed the pleiotropic abnormal phenotype similar to that of the rice brassinosteroid (BR)-insensitive mutant, d61. The dwarf phenotype of d2 was rescued by exogenous brassinolide treatment. The accumulation profile of BR intermediates in the d2 mutants confirmed that these plants are deficient in la
American Society of Plant Biologists.
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7. Suppression of the heterotrimeric G protein causes abnormal morphology, including dwarfism, in rice
Transgenic rice containing an antisense cDNA for the α subunit of rice heterotrimeric G protein produced little or no mRNA for the subunit and exhibited abnormal morphology, including dwarf traits and the setting of small seeds. In normal rice, the mRNA for the α subunit was abundant in the internodes and florets, the tissues closely related to abnormality
The National Academy of Sciences.
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8. The tomato DWARF enzyme catalyses C-6 oxidation in brassinosteroid biosynthesis
Brassinosteroids (BRs) are steroidal plant hormones essential for normal plant growth and development. Mutants in the biosynthesis or perception of BRs are usually dwarf. The tomato Dwarf gene (D), which was predicted to encode a cytochrome P450 enzyme (P450) with homology to other P450s involved in BR biosynthesis, was cloned previously. Here, we show
The National Academy of Sciences.
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9. Genetics of Dominant Gibberellin-Insensitive Dwarfism in Maize
D8 and Mpl1 are two dominant dwarfing mutations of maize. Although they differ in severity of dwarfism, both D8 and Mpl1 mutants are unresponsive to gibberellin (GA). Because of their close phenotypic resemblance to the recessive GA-sensitive dwarf mutants these dominant mutations may identify a gene whose product is involved in the reception of GA. With thi
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10. The Rice brassinosteroid-deficient dwarf2 Mutant, Defective in the Rice Homolog of Arabidopsis DIMINUTO/DWARF1, Is Rescued by the Endogenously Accumulated Alternative Bioactive Brassinosteroid, Dolichosterone
We have identified a rice (Oryza sativa) brassinosteroid (BR)-deficient mutant, BR-deficient dwarf2 (brd2). The brd2 locus contains a single base deletion in the coding region of Dim/dwf1, a homolog of Arabidopsis thaliana DIMINUTO/DWARF1 (DIM/DWF1). Introduction of the wild-type Dim/dwf1 gene into brd2 restored the normal phenotype. Overproduction and repre
American Society of Plant Biologists.
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11. Characterization of a Gibberellin-Insensitive Dwarf Wheat, D6899 1: EVIDENCE FOR A REGULATORY STEP COMMON TO MANY DIVERSE RESPONSES TO GIBBERELLINS
The effects of gibberellin in two wheat varieties, Nainari 60 and D6899, have been studied. D6899 is a dwarf wheat having a single locus mutation, the Rht 3 gene (“Tom Thumb” gene), which is located on chromosome 4A. When compared with the standard height wheat variety, Nainari 60, D6899 does not have a slowdown in cellular metabolism such as respiration
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12. The maize Dwarf3 gene encodes a cytochrome P450-mediated early step in Gibberellin biosynthesis.
Gibberellins (GAs) are phytohormones required for normal growth and development in higher plants. The Dwarf3 (D3) gene of maize encodes an early step in the GA biosynthesis pathway. We transposon-tagged the D3 gene using Robertson's Mutator (Mu) and showed that the mutant allele d3.2::Mu8 is linked to a Mu8 element. The DNA flanking the Mu8 element was clone