These authors contributed equally.
A FILAMENTOUS FLOWER orthologue plays a key role in leaf patterning in opium poppy
Article first published online: 24 SEP 2012
© 2012 The Authors. The Plant Journal © 2012 Blackwell Publishing Ltd
The Plant Journal
Volume 72, Issue 4, pages 662–673, November 2012
How to Cite
Vosnakis, N., Maiden, A., Kourmpetli, S., Hands, P., Sharples, D. and Drea, S. (2012), A FILAMENTOUS FLOWER orthologue plays a key role in leaf patterning in opium poppy. The Plant Journal, 72: 662–673. doi: 10.1111/j.1365-313X.2012.05112.x
- Issue published online: 2 NOV 2012
- Article first published online: 24 SEP 2012
- Accepted manuscript online: 20 JUL 2012 11:44AM EST
- Received 2 March 2012; revised 13 July 2012; accepted 17 July 2012; published online 24 September 2012.
- Papaver somniferum ;
- basal eudicot;
- leaf development;
- shoot apical meristem;
- viral-induced gene silencing
The plant-specific YABBY genes were initially defined by their roles in determining abaxial/adaxial cell fate in lateral organs of eudicots, and repressing meristematic genes in differentiating tissues such as leaves. In Arabidopsis thaliana FILAMENTOUS FLOWER (FIL) is also required for inflorescence and floral meristem establishment and flower development in a pathway involving the floral transition and identity genes. Here we describe the characterization of a FIL orthologue from the basal eudicot, Papaver somniferum (the opium poppy), and demonstrate a role for the gene in patterning the highly lobed leaf of the poppy. Silencing of PapsFIL using viral-induced gene silencing resulted in leaves of reduced laminar area, more pronounced margin serration and, in some cases, leaf bifurcation. In contrast, the gene does not appear to affect the development of the flower, and these variations in function are discussed in relation to its taxonomic position as a basal eudicot and its determinate growth habit.