Methods for altering the rate of plant development and plants ob

Details Methods for altering the rate of plant development and plants ob Methods for altering the rate of plant development and plants ob

1997-07-30

2000-01-04

Smith, Lynette R. F.

Multicellular living organisms and unmodified parts thereof and

Method of introducing a polynucleotide molecule into or...

The polynucleotide encodes an inhibitory rna molecule

435468, 435410, 435419, 536 236, 800278, 800286, 800290, 800295, 800298, 800306, C12N 504, C12N 1529, C12N 1562, A01H 500

Patent

active

06011200&

ABSTRACT:
The present invention is based on the unexpected observation that DNA methylation, particularly at cytosine residues, regulates the rate of development of a plant. Based on this observation, the present invention provides methods of increasing or decreasing the rate of development of a plant by either increasing or decreasing the amount of methylated DNA found in the plant. The present invention further provides plants that have been altered such that their rate of maturation is either increased or decreased relative to the rate of maturation of a non-altered plant.

REFERENCES:
Finnegan, E.J.: "The Role of DNA Methylation in Plant Development" Epigenetic Mechanisms of Gene Regulation, vol. 32, Dec. 6, 1996, Cold Spring Harbour Laboratory Press, pp. 127-140.
Kakutani, T., et al.: "Characterization of an Arabidopsis Thaliana DNA Hypomethylation Mutant" Nucleic Acid Research, vol. 23, No. 1, pp. 130-137.
Vongs, A. et al.: "Arabidopsis Thaliana DNA Methylation Mutants" Science, vol. 260, Jul. 25, 1993.
Finnegan, E.J. et al.: "Isolation and Identification by Sequence Homology of a Putative Cytosine Methyltransferase from Arabidopsis Thaliana" Nucleic Acid Research, vol. 21, No. 10, 1993, pp. 2383-2388.
Ronemus, M.J. et al.: "Demethylation-Induced Developmental Pleiotropy in Arabidopsis" Science, vol. 273, Aug. 2, 1996, pp. 654-657.
Finnegan, E.J. et al.: "Reduced DNA Methylation in Arabidopsis Thaliana Results in Abnormal Plant Development" Proceedings of the National Academy of Sciences of the USA, vol. 93, Aug. 1996, pp. 8449-8454.
Richards, E.J., et al.: "DNA Methylation and Plant Development" Trends in Genetics, vol. 13, No. 8, Aug. 1997, pp. 319-323.
Mitra et al. Biochim Biophys Acta. 1994. vol. 1219: 244-249.
Napoli et al. The Plant Cell. 1989. vol. 2: 278-289.
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Finnegan et al. Nucleic Acid Research. 1993. vol. 21: 2383-2388.

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