Genes involved in brassinosteroids's metabolism and signal transduction pathways

Pereira-Netto, Adaucto Bellarmino

doi:10.1590/s1516-89132007000400006

Cited by 3 publications

(3 citation statements)

References 83 publications

(88 reference statements)

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“…Isolation and characterization of genes encoding various BR biosynthetic enzymes in plants have increased our knowledge of the BR biosynthetic pathway (Pereira‐Netto, ; Ohnishi et al ., ), which is important not only for understanding regulation of BR activity, but also for genetic manipulation of BR levels in crop improvement. Twenty‐one genes involved in the BR biosynthetic pathway have been cloned so far (Takahashi et al ., ; Li et al ., ; Choe et al ., , , ; Schultz et al ., ; Hong et al ., , , ; Tao et al ., ; Choe, ; Sakamoto & Matsuoka, ).…”

Section: Introductionmentioning

confidence: 99%

A comprehensive genetic study reveals a crucial role of CYP90D2/D2 in regulating plant architecture in rice (Oryza sativa)

Jiang

Youn

et al. 2013

New Phytologist

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SummaryBrassinosteroids (BRs) are essential regulators of plant architecture. Understanding how BRs control plant height and leaf angle would facilitate development of new plant type varieties by biotechnology. A number of mutants involved in BR biosynthesis have been isolated but many of them lack detailed genetic analysis. Here, we report the isolation and characterization of a severe dwarf mutant, chromosome segment deleted dwarf 1 (csdd1), which was deficient in BR biosynthesis in rice.We isolated the mutant by screening a tissue culture-derived population, cloned the gene by mapping, and confirmed its function by complementary and RNAi experiments, combined with physiological and chemical analysis.We showed that the severe dwarf phenotype was caused by a complete deletion of a cytochrome P450 gene, CYP90D2/D2, which was further confirmed in two independent T-DNA insertion lines in different genetic backgrounds and by RNA interference. Our chemical analysis suggested that CYP90D2/D2 might catalyze C-3 dehydrogenation step in BR biosynthesis.We have demonstrated that the CYP90D2/D2 gene plays a more important role than previously reported. Allelic mutations of CYP90D2/D2 confer varying degrees of dwarfism and leaf angle, thus providing useful information for molecular breeding in grain crop plants.

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Section: Introductionmentioning

confidence: 99%

A comprehensive genetic study reveals a crucial role of CYP90D2/D2 in regulating plant architecture in rice (Oryza sativa)

Jiang

Youn

et al. 2013

New Phytologist

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“…BRI1 or also known as cbb2 was first identified and characterised in Arabidopsis (Clouse et al, 1996;Pereira-Netto, 2007) which possess dwarf characteristics due to disruption in BR signaling. It was also identified in pea (Pisum sativum) and tomato (Solanum lycopersicum) (Hossain et al, 2012).…”

Section: Brassinosteroid Biosynthesis-like Protein (Dwf1)mentioning

confidence: 99%

Analysis of Gene Expression by Est From SSH Library in Dwarf Oil Palm

Azni¹

2017

JOPR

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“…The dwarf gene encodes a cytochrome P450 monooxygenase (CYP or P450) that catalyses the C-6 oxidation of 6-deoxocastasterone to castasterone, the immediate precursor of the most bioactive brassinosteroids (see Montoya et al 2005 and references therein). At present, nine genes have been reported to be involved in their biosynthesis (Pereira-Netto 2007 ) .…”

Section: Plant Architecturementioning

confidence: 99%

Towards the Domestication of Jatropha: The Integration of Sciences

Carels

2012

Jatropha, Challenges for a New Energy Crop

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N. Carels approximately 170 known species. Recent phylogenetic studies in the genus Jatropha based on random ampli fi ed polymorphic DNA (RAPD), ampli fi ed fragment length polymorphisms (AFLP, Vos et al. 1995 ) and nuclear ribosomal-DNA internal transcribed spacer (nrDNA ITS) markers (Sudheer et al. 2009a ) showed that J. curcas is genetically more similar to J. integerrima Jacq. than to any other species of genus Jatropha .J. curcas is a stem-succulent deciduous tree of ~5 m in height that produces seeds rich in oil (27-40%). Crude oil of J. curcas meets the fuel quality standards of rapeseed and can be easily converted into biodiesel that meets US and European standards by transesteri fi cation.J. curcas is currently considered as undomesticated; its physiology and agronomy remain to be clari fi ed, and thus seed yield is poorly predictable (Ginwal et al. 2004 ) . However, in the interval of just 3 years from 2007 to 2010, great efforts have been made by the scienti fi c community, particularly in India, to gather data on the genetic diversity and interspeci fi c hybridization of this species, as well as from analyses using the complete range of available biotechnologies, including in vitro propagation, tissue culture, genetic transformation, transcriptome description and genome sequencing. Forward and reverse genomics approaches are now beginning to be employed in J. curcas research.The twenty-fi rst century is witnessing an unprecedented level of scienti fi c integration, which in the case of biology, has led to the concept of systems biology . This concept can be de fi ned as the study of the interactions between the components of biological systems and how these interactions give rise to the functioning and behavior of that system. In the case of genetics, the system also includes the environment of the biological entity under consideration because it conditions the spectrum of stimuli that are used to score the genome performance. As a consequence, systems biology implies high-throughput technologies of data collection, information technology for data management and mathematical modeling.Genetic correlations can initially be investigated by examining domesticated crops as an entity that represents a particular mode of the expression of a plant species. Related to this notion, there is a common suite of traits known as the "domestication syndrome" (Doebley et al. 2006 ;Tang et al. 2010 ) , which represents the kind of complexity that is appropriate to the new perspective that plant breeding must be addressed with the support of systems biology.Here, I propose to discuss the current knowledge and emerging technologies available from model crops with the underlying prospect of their application to the selective breeding of J. curcas . Mating SystemJ. curcas is monoecious, with separate male and female fl owers, and is a predominantly outbreeding species, as shown by its high abortion rate, low seed-ovule ratio, low fecundity rate, high pollinator attractiveness, delayed stigma receptive

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Genes involved in brassinosteroids's metabolism and signal transduction pathways

Cited by 3 publications

References 83 publications

A comprehensive genetic study reveals a crucial role of CYP90D2/D2 in regulating plant architecture in rice (Oryza sativa)

A comprehensive genetic study reveals a crucial role of CYP90D2/D2 in regulating plant architecture in rice (Oryza sativa)

Analysis of Gene Expression by Est From SSH Library in Dwarf Oil Palm

Towards the Domestication of Jatropha: The Integration of Sciences

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