DOI: 10.1101/gad.5.7.1172. cop1: a regulatory locus involved in light-controlled development and gene expression in Arabidopsis.

cop1: a regulatory locus involved in light-controlled development and gene expression in Arabidopsis.

10.1101/gad.5.7.1172

Crossref journal-article

Cold Spring Harbor Laboratory

Genes & Development (246)

Abstract

Light signals from the environment are perceived by specific regulatory photoreceptors in plants and are transduced by unknown mechanisms to genes that control growth and development. We have identified a genetic locus in Arabidopsis thaliana, which appears to play a central role in this transduction process. Mutations in this locus, designated cop1 (constitutively photomorphogenic), result in dark-grown seedlings with the morphology of wild-type seedlings grown in the light. In addition, these mutations lead to constitutive expression of an array of normally light-regulated genes in dark-grown seedlings and in light-grown adult plants placed in darkness. Promoter-reporter fusion constructs of some of these genes are constitutively expressed in dark-grown transgenic cop1 seedlings, indicating that the aberrant behavior of these genes results primarily from aberrant modulation of their promoter activities in the mutant. In contrast, light control of seed germination and diurnal control of cab gene expression is normal in the cop1 mutants. Because these mutations are recessive, we conclude that in seedlings and adult plants, the wild-type cop1 gene product normally acts in darkness to repress the expression of genes involved in the dark-adaptive developmental and that regulatory photoreceptors act to reverse this action upon exposure to light. However, photocontrol of seed germination and diurnal rhythms is apparently exerted via one or more separate pathways not involving the cop1 product. one or more separate pathways not involving the cop1 product.

Bibliography

Deng, X. W., Caspar, T., & Quail, P. H. (1991). cop1: a regulatory locus involved in light-controlled development and gene expression in Arabidopsis. Genes & Development, 5(7), 1172â1182.

Authors 3

X W Deng (first)
T Caspar (additional)
P H Quail (additional)

References 43 Referenced 403

10.1111/j.1751-1097.1988.tb02898.x / Photochem. Photobiol. / Photomorphogenetic mutants of higher plants. (1988)
10.1104/pp.24.1.1 / Plant Physiol. / Copper enzymes in isolated chloroplasts: Polyphenoloxidase in Beta vulgaris. (1949)
10.1105/tpc.2.11.1081
10.1073/pnas.86.24.9692
10.1016/0092-8674(89)90950-1
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10.1126/science.2255908
10.1016/0092-8674(87)90290-X
10.1002/j.1460-2075.1988.tb03200.x / EMBO J. / Constitutive transcription and regulation of gene expression in non-photosynthetic plastids of higher plants. (1988)
10.1002/j.1460-2075.1990.tb08295.x / EMBO J. / Mutation of either G box or I box sequences profoundly affects expression from the Arabidopsis rbcS-1A promoter. (1990)
{'key': '2021111320183744000_5.7.1172.12', 'first-page': '1985', 'article-title': 'Transcriptional regulation of the Arabidopsis thaliana chalcone synthase gene.', 'volume': '8', 'year': '1988', 'journal-title': 'Mol. Cell. Biol.'} / Mol. Cell. Biol. / Transcriptional regulation of the Arabidopsis thaliana chalcone synthase gene. (1988)
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10.1002/j.1460-2075.1988.tb03244.x / EMBO J. / A light-entrained circadian clock controls transcription of several plant genes. (1988)
10.1073/pnas.85.19.7089
10.1073/pnas.85.21.8017
10.1007/BF02667740
10.1002/j.1460-2075.1987.tb02730.x / EMBO J. / Gus fusions: Beta-glucoronidase as a sensitive and versatile gene fusion marker in higher plants. (1987)
10.1007/BF00016429
10.1104/pp.88.4.1323
Kendrick, R.E. and G.H.M. Kronenberg. 1986. Photomorphogenesis in plants. Martinus Nijhoff/Dr W. Junk Publishers, Dordrecht, The Netherlands. (10.1007/978-94-017-2624-5)
Kirk, J.T.O. and R.A.E. Tilney-Bassett. 1978. The plastids: Their chemistry, structure, growth, and inheritance. Elsevier/North-Holland Biomedical Press, New York.
10.1016/S0044-328X(80)80208-X
10.1007/BF00019515
10.1146/annurev.arplant.38.1.221
10.1016/S0021-9258(19)47041-5 / J. Biol. Chem. / Light to dark transition modulates the phase of antenna chlorophyll protein gene expression. (1989)
10.1093/nar/14.10.4051
{'key': '2021111320183744000_5.7.1172.28', 'first-page': '4840', 'article-title': 'Rapid transcriptional regulation by phytochrome of the genes for phytochrome and chlorophyll a/b-binding protein in Avena sativa.', 'volume': '8', 'year': '1988', 'journal-title': 'Mol. Cell. Biol.'} / Mol. Cell. Biol. / Rapid transcriptional regulation by phytochrome of the genes for phytochrome and chlorophyll a/b-binding protein in Avena sativa. (1988)
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10.1016/0092-8674(89)90900-8
Mohr, H. and W. Shropshire, Jr. 1983. An introduction to photomorphogenesis for the general reader. In Encyclopedia of plant physiology, new series, vol. 16A. Photomorphogenesis (ed. W. Shropshire Jr. and H. Mohr), pp. 24–38. Springer-Verlag, Berlin/Heidelberg/New York/Tokyo. (10.1007/978-3-642-68918-5_3)
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10.1007/BF00017582
10.1016/0076-6879(86)18105-5
{'key': '2021111320183744000_5.7.1172.35', 'first-page': '433', 'article-title': 'Time-dependent changes in the responsiveness to light of phytochrome-mediated anthocyanin synthesis.', 'volume': '4', 'year': '1981', 'journal-title': 'Plant Cell Environ.'} / Plant Cell Environ. / Time-dependent changes in the responsiveness to light of phytochrome-mediated anthocyanin synthesis. (1981)
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10.1111/j.1365-3040.1990.tb01084.x
10.1104/pp.93.2.572
Somerville, C.R. and W.L. Ogren. 1982. Isolation of photorespiration mutants in Arabidopsis thaliana. In Methods in chloroplast molecular biology (ed. M. Edelman, R.B. Hallick, and N.-H. Chua, pp. 129–139. Elsevier Biomedical Press, New York.
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10.1073/pnas.79.24.7699

Dates

Type	When
Created	18 years, 3 months ago (June 5, 2007, 5:15 p.m.)
Deposited	3 years, 9 months ago (Nov. 13, 2021, 11:21 p.m.)
Indexed	1 day, 9 hours ago (Sept. 4, 2025, 9:39 a.m.)
Issued	34 years, 2 months ago (July 1, 1991)
Published	34 years, 2 months ago (July 1, 1991)
Published Online	34 years, 2 months ago (July 1, 1991)
Published Print	34 years, 2 months ago (July 1, 1991)

Funders 0

None

BibTeX

@article{Deng_1991, title={cop1: a regulatory locus involved in light-controlled development and gene expression in Arabidopsis.}, volume={5}, ISSN={1549-5477}, url={http://dx.doi.org/10.1101/gad.5.7.1172}, DOI={10.1101/gad.5.7.1172}, number={7}, journal={Genes & Development}, publisher={Cold Spring Harbor Laboratory}, author={Deng, X W and Caspar, T and Quail, P H}, year={1991}, month=jul, pages={1172–1182} }

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