Journal
CURRENT OPINION IN PLANT BIOLOGY
Volume 34, Issue -, Pages 100-106Publisher
CURRENT BIOLOGY LTD
DOI: 10.1016/j.pbi.2016.10.002
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Funding
- JSPS KAKENHI [26291058, 26660290, 16H01236]
- JST, CREST
- BBSRC-NSF grant [BB/M025047/1]
- Hungarian Academy [OTKA 105816]
- BBSRC [BB/M025047/1] Funding Source: UKRI
- Biotechnology and Biological Sciences Research Council [BB/M025047/1] Funding Source: researchfish
- Grants-in-Aid for Scientific Research [16H01236, 26291058, 26660290] Funding Source: KAKEN
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Cell cycle phase specific oscillation of gene transcription has long been recognized as an underlying principle for ordered processes during cell proliferation. The G1/S-specific and G2/M-specific cohorts of genes in plants are regulated by the E2F and the MYB3R transcription factors. Mutant analysis suggests that activator E2F functions might not be fully required for cell cycle entry. In contrast, the two activator-type MYB3Rs are part of positive feedback loops to drive the burst of mitotic gene expression, which is necessary at least to accomplish cytokinesis. Repressor MYB3Rs act outside the mitotic time window during cell cycle progression, and are important for the shutdown of mitotic genes to impose quiescence in mature organs. The two distinct classes of E2Fs and MYB3Rs together with the RETINOBLATOMA RELATED are part of multiprotein complexes that may be evolutionary related to what is known as DREAM complex in animals. In plants, there are multiple such complexes with distinct compositions and functions that may be involved in the coordinated cell cycle and developmental regulation of E2F targets and mitotic genes.
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