J Integr Plant Biol. ›› 2007, Vol. 49 ›› Issue (8): 1253-1260.DOI: 10.1111/j.1672-9072.2007.00547.x

• Signal Transduction • Previous Articles     Next Articles

In Silico Identification of Co-transcribed Core Cell Cycle Regulators and Transcription Factors in Arabidopsis

Yixing Wang and Ming Yang   

  • Published:2007-08-04

Abstract: Regulatory networks involving transcription factors and core cell cycle regulators are expected to play crucial roles in plant growth and development. In this report, we describe the identification of two groups of co-transcribed core cell cycle regulators and transcription factors via a two-step in silico screening. The core cell cycle regulators include TARDY ASYNCHRONOUS MEIOSIS (CYCA1;2), CYCB1;1, CYCB2;1, CDKB1;2, and CDKB2;2 while the transcription factors include CURLY LEAF, AINTEGUMENTA, a MYB protein, two Forkhead-associated domain proteins, and a SCARECROW family protein. Promoter analysis revealed a potential web of cross- and self-regulations among the identified proteins. Because one criterion for screening for these genes is that they are predominantly transcribed in young organs but not in mature organs, these genes are likely to be particularly involved in Arabidopsis organ growth.

Key words: Arabidopsis, cell cycle, cyclin-dependent kinases, cyclins, transcription factors.

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