Phytochrome-mediated control of COP1 gene expression in rice plants

Citation
T. Tsuge et al., Phytochrome-mediated control of COP1 gene expression in rice plants, MOL GENET G, 265(1), 2001, pp. 43-50
Citations number
33
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Molecular Biology & Genetics
Journal title
MOLECULAR GENETICS AND GENOMICS
ISSN journal
1617-4615 → ACNP
Volume
265
Issue
1
Year of publication
2001
Pages
43 - 50
Database
ISI
SICI code
1617-4615(200103)265:1<43:PCOCGE>2.0.ZU;2-F
Abstract
We isolated a COP1 cDNA from rice and found that it could complement the Ar abidopsis cop1-4 mutant. The putative rice COP1 protein has the Ring-finger , coiled-coil, and WD-40 repeat domains, which are also conserved in pea, t omato, and mammalian COP1 proteins. The degree of overall identity between rice COP1 and Arabidopsis COP1 is 73%, and the similarity value is 83%. Exp ression of rice COP1 was detected in almost all plant tissues, with the lev el being relatively higher in calli and very low in etiolated leaves. The e xpression level was positively controlled by light in etiolated and green l eaves. At the end of the light period, expression of the gene in green leav es could be down-regulated by far-red light. This far-red light effect coul d be prevented by subsequent irradiation with red light. These results indi cate that phytochrome regulates rice COP1 expression.