例如:"lncRNA", "apoptosis", "WRKY"

The Arabidopsis CDC25 induces a short cell length when overexpressed in fission yeast: evidence for cell cycle function.

New Phytol. 2005 Feb;165(2):425-8
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摘要


The putative mitotic inducer gene, Arath;CDC25 cloned in Arabidopsis thaliana, was screened for cell cycle function by overexpressing it in Schizosaccharomyces pombe (fission yeast). The expression pattern of Arath;CDC25 was also examined in different tissues of A. thaliana. Fission yeast was transformed with plasmids pREP1 and pREP81 with the Arath;CDC25 gene under the control of the thiamine-repressible nmt promoter. Using reverse transcription-polymerase chain reaction (RT-PCR), the expression of Arath;CDC25 was examined in seedlings, flower buds, mature leaves and stems of A. thaliana; actin (ACT2) was used as a control. In three independent transformants of fission yeast, cultured in the absence of thiamine (T), pREP1::Arath;CDC25 induced a highly significant reduction in mitotic cell length compared with wild type, pREP::Arath;CDC25 +T, and empty vector (pREP1 +/- T). The extent of cell shortening was greater using the stronger pREP1 compared with the weaker pREP81. However, Arath;CDC25 was expressed at low levels in all tissues examined. The data indicate that Arath;CDC25 can function as a mitotic accelerator in fission yeast. However, unlike other plant cell cycle genes, expression of Arath;CDC25 was not enhanced in rapidly dividing compared with non-proliferative Arabidopsis tissues.

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