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Curr Opin Plant Biol. 2016 Feb;29:154-62. doi: 10.1016/j.pbi.2015.12.004. Epub 2016 Jan 21.

Molecular mechanisms of floral organ specification by MADS domain proteins.

Author information

1
Institute for Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany.
2
Institute for Biochemistry and Biology, University of Potsdam, 14476 Potsdam, Germany. Electronic address: kerstin.kaufmann@uni-potsdam.de.

Abstract

Flower development is a model system to understand organ specification in plants. The identities of different types of floral organs are specified by homeotic MADS transcription factors that interact in a combinatorial fashion. Systematic identification of DNA-binding sites and target genes of these key regulators show that they have shared and unique sets of target genes. DNA binding by MADS proteins is not based on 'simple' recognition of a specific DNA sequence, but depends on DNA structure and combinatorial interactions. Homeotic MADS proteins regulate gene expression via alternative mechanisms, one of which may be to modulate chromatin structure and accessibility in their target gene promoters.

PMID:
26802807
DOI:
10.1016/j.pbi.2015.12.004
[Indexed for MEDLINE]

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