期刊
PLANT CELL
卷 13, 期 12, 页码 2589-2607出版社
AMER SOC PLANT BIOLOGISTS
DOI: 10.1105/tpc.13.12.2589
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资金
- NIGMS NIH HHS [R01 GM059507, R01 GM047850, R37 GM047850, GM-47850, GM59507] Funding Source: Medline
An expressed sequence tag-based microarray was used to profile genome expression underlying light control of Arabidopsis development. Qualitatively similar gene expression profiles were observed among seedlings grown in different light qualities, Including far-red, red, and blue light, which are mediated primarily by phytochrome A, phytochrome B, and the cryptochromes, respectively. Furthermore, light/dark transitions also triggered similar differential genome expression profiles. Most light treatments also resulted in distinct expression profiles in small fractions of the expressed sequence tags examined. The similarly regulated genes in all light conditions were estimated to account for approximately one-third of the genome, with three-fifths upregulated and two-fifths downregulated by light. Analysis of those light-regulated genes revealed more than 26 cellular pathways that are regulated coordinately by light. Thus, light controls Arabidopsis development through coordinately regulating metabolic and regulatory pathways.
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