Journal
TRENDS IN PLANT SCIENCE
Volume 15, Issue 6, Pages 346-352Publisher
ELSEVIER SCIENCE LONDON
DOI: 10.1016/j.tplants.2010.03.007
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Funding
- Centre National de la Recherche Scientifique (CNRS)
- Agence Nationale de la Recherche (ANR)
- Biotechnology and Biological Sciences Research Council
- Netherlands Organisation for Scientific Research (NWO)
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The LEAFY (LFY) gene of Arabidopsis and its homologs in other angiosperms encode a unique plant-specific transcription factor that assigns the floral fate of meristems and plays a key role in the patterning of flowers, probably since the origin of flowering plants. LFY-like genes are also found in gymnosperms, ferns and mosses that do not produce flowers, but their role in these plants is poorly understood. Here, we review recent findings explaining how the LFY protein works and how it could have evolved throughout land plant history. We propose that LFY homologs have an ancestral role in regulating cell division and arrangement, and acquired novel functions in seed plants, such as activating reproductive gene networks.
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