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. 2014 Apr 30;3(2):251–265. doi: 10.3390/plants3020251

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© 2014 by the authors; licensee MDPI, Basel, Switzerland.

This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (http://creativecommons.org/licenses/by/3.0/).

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Floral organ primordium initiation in lfy loss-of-function mutant flowers. (a,b) pPIN1::PIN1-GFP expression in wild-type (a) and lfy (b) flowers at stage 2. (c–f) DR5rev::GFP expression in wild-type (c,e) and lfy (d,f) flowers at stage 3 (c,d) and stage 4 (e,f). Strongly increased GFP signal was observed in sepal primordia (arrowheads), as reported previously [3,39]. Insets show color-coded GFP intensity, with background levels being purple and blue, green, yellow, and red to signifying increasing DR5rev::GFP signal. ab, abaxial; ad, adaxial. Scale bar, 25 µm.