The Experts below are selected from a list of 327 Experts worldwide ranked by ideXlab platform
Hugh G. Nimmo - One of the best experts on this subject based on the ideXlab platform.
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Organ specificity in the circadian control of Plant Gene expression.
Biochemical Society Transactions, 2005Co-Authors: Stuart Sullivan, Matt Shenton, Hugh G. NimmoAbstract:Of the many Plant Genes whose expressions are controlled by the circadian clock, one of the phosphoenolpyruvate carboxylase kinase Genes in soya bean ( Glycine max ) exhibits the unusual property that its control is organ-specific – it is under circadian control in leaves but not in roots. Preliminary experiments suggest that the same is true for at least one Gene in Arabidopsis thaliana . It will be important to define the extent and function of this phenomenon and the underlying mechanism. Abbreviations: CAM, crassulacean acid metabolism; PEPc, phosphoenolpyruvate carboxylase
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Organ specificity in the circadian control of Plant Gene expression.
Biochemical Society transactions, 2005Co-Authors: Stuart Sullivan, Matt Shenton, Hugh G. NimmoAbstract:Of the many Plant Genes whose expressions are controlled by the circadian clock, one of the phosphoenolpyruvate carboxylase kinase Genes in soya bean (Glycine max) exhibits the unusual property that its control is organ-specific--it is under circadian control in leaves but not in roots. Preliminary experiments suggest that the same is true for at least one Gene in Arabidopsis thaliana. It will be important to define the extent and function of this phenomenon and the underlying mechanism.
Michael Freeling - One of the best experts on this subject based on the ideXlab platform.
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bias in Plant Gene content following different sorts of duplication tandem whole genome segmental or by transposition
Annual Review of Plant Biology, 2009Co-Authors: Michael FreelingAbstract:Each mode of Gene duplication (tandem, tetraploid, segmental, transpositional) retains Genes in a biased manner. A reciprocal relationship exists between Plant Genes retained postpaleotetraploidy versus Genes retained after an ancient tandem duplication. Among the models (subfunctionalization, neofunctionalization, balanced Gene drive) and ideas that might explain this relationship, only balanced Gene drive predicts reciprocity. The Gene balance hypothesis explains that more “connected” Genes—by protein-protein interactions in a heteromer, for example—are less likely to be retained as a tandem or transposed duplicate and are more likely to be retained postpaleotetraploidy; otherwise, selectively negative dosage effects are created. Biased duplicate retention is an instant and neutral by-product, a spandrel, of purifying selection. Balanced Gene drive expanded Plant Gene families, including those encoding proteasomal proteins, protein kinases, motors, and transcription factors, with each paleotetraploidy, ...
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bias in Plant Gene content following different sorts of duplication tandem whole genome segmental or by transposition
Annual Review of Plant Biology, 2009Co-Authors: Michael FreelingAbstract:Each mode of Gene duplication (tandem, tetraploid, segmental, transpositional) retains Genes in a biased manner. A reciprocal relationship exists between Plant Genes retained postpaleotetraploidy versus Genes retained after an ancient tandem duplication. Among the models (C, neofunctionalization, balanced Gene drive) and ideas that might explain this relationship, only balanced Gene drive predicts reciprocity. The Gene balance hypothesis explains that more "connected" Genes--by protein-protein interactions in a heteromer, for example--are less likely to be retained as a tandem or transposed duplicate and are more likely to be retained postpaleotetraploidy; otherwise, selectively negative dosage effects are created. Biased duplicate retention is an instant and neutral by-product, a spandrel, of purifying selection. Balanced Gene drive expanded Plant Gene families, including those encoding proteasomal proteins, protein kinases, motors, and transcription factors, with each paleotetraploidy, which could explain trends involving complexity. Balanced Gene drive is a saltation mechanism in the mutationist tradition.
Stuart Sullivan - One of the best experts on this subject based on the ideXlab platform.
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Organ specificity in the circadian control of Plant Gene expression.
Biochemical Society Transactions, 2005Co-Authors: Stuart Sullivan, Matt Shenton, Hugh G. NimmoAbstract:Of the many Plant Genes whose expressions are controlled by the circadian clock, one of the phosphoenolpyruvate carboxylase kinase Genes in soya bean ( Glycine max ) exhibits the unusual property that its control is organ-specific – it is under circadian control in leaves but not in roots. Preliminary experiments suggest that the same is true for at least one Gene in Arabidopsis thaliana . It will be important to define the extent and function of this phenomenon and the underlying mechanism. Abbreviations: CAM, crassulacean acid metabolism; PEPc, phosphoenolpyruvate carboxylase
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Organ specificity in the circadian control of Plant Gene expression.
Biochemical Society transactions, 2005Co-Authors: Stuart Sullivan, Matt Shenton, Hugh G. NimmoAbstract:Of the many Plant Genes whose expressions are controlled by the circadian clock, one of the phosphoenolpyruvate carboxylase kinase Genes in soya bean (Glycine max) exhibits the unusual property that its control is organ-specific--it is under circadian control in leaves but not in roots. Preliminary experiments suggest that the same is true for at least one Gene in Arabidopsis thaliana. It will be important to define the extent and function of this phenomenon and the underlying mechanism.
Huang Minren - One of the best experts on this subject based on the ideXlab platform.
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The application of site-specific DNA endonucleases in Plant Gene targeting
Journal of Nanjing Forestry University, 2012Co-Authors: Huang MinrenAbstract:Gene targeting is a powerful tool for site-specific insertion,deletion and replacement of DNA in genome.Gene targeting technology in Plants is far from routine due to the low frequency of homologous recombination that limits the study of Gene function and molecular breeding.Recently,breakthrough has been made in the engineered DNA binding domains combined with zinc finger protein and transcription activator-like effector.Engineered DNA binding domain fusing endonucleases can specifically breaks the DNA double-strand,then Generate site-directed mutaGenesis and facilitate homologous recombination.In this review,we focus on the application of zinc finger nuclease and TAL effector nuclease in site-directed mutaGenesis and Gene targeting of Plant genome and analyze their existing problems.
Soo-chul Park - One of the best experts on this subject based on the ideXlab platform.
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Plant Gene responses to frequency-specific sound signals
Molecular Breeding, 2008Co-Authors: Mi-jeong Jeong, Chang-ki Shim, Hawk-bin Kwon, Myeong-ok Byun, Soo-chul ParkAbstract:We identified a set of sound-responsive Genes in Plants using a sound-treated subtractive library and demonstrated sound regulation through mRNA expression analyses. Under both light and dark conditions, sound up-regulated expression of rbcS and ald . These are also light-responsive Genes and these results suggest that sound could represent an alternative to light as a Gene regulator. Ald mRNA expression increased significantly with treatment at 125 and 250 Hz, whereas levels decreased significantly with treatment at 50 Hz, indicating a frequency-specific response. To investigate whether the ald promoter responds to sound, we Generated transgenic rice Plants harboring a chimeric Gene comprising a fusion of the ald promoter and GUS reporter. In three independent transgenic lines treated with 50 or 250 Hz for 4 h, GUS mRNA expression was up-regulated at 250 Hz, but down-regulated at 50 Hz. Thus, the sound-responsive mRNA expression pattern observed for the ald promoter correlated closely with that of ald , suggesting that the 1,506 bp ald promoter is sound-responsive. Therefore, we propose that in transgenic Plants, specific frequencies of sound treatment could be used to regulate the expression of any Gene fused to the ald promoter.