... in the basal land plant lineages. * Author for correspondence (e-mail: [email protected] ) 19 1 2005 ©2005. 2005 LEAFY FLORICAULA Fertilization Zygote Physcomitrella patens Multicellular organisms begin their diploid development from a single-cell stage: the zygote...

...Kirsten Bomblies; Rong-Lin Wang; Barbara A. Ambrose; Robert J. Schmidt; Robert B. Meeley; John Doebley The homologous transcription factors FLORICAULA of Antirrhinum and LEAFY of Arabidopsis share conserved roles in flower meristem identity and floral patterning. While roles for FLORICAULA/LEAFY...

... of the inflorescence remains unaltered. A weak alf allele was identified that, after bifurcation of the inflorescence meristem, yields a ‘floral’ meristem with partial inflorescence characteristics. By analysing independent transposon dTph1 insertion alleles we show that the alf locus encodes the Petunia FLORICAULA...

... permanent sources of inductive signal in addition to the lack of meristem commitment to flowering. Analysis of the expression of the Impatiens homologues of the meristem identity genes floricaula and squamosa indicates that a change in floricaula transcription is not associated with the establishment...

... leaves, short internodes and spiral phyllotaxy. We show, by a combination of physiological, genetical and morphological analysis, that the various aspects of the inflorescence are controlled by three pathways. The first pathway, depends on expression of the floricaula gene, and is rapidly and discretely...

...Sabine S. Hantke; Rosemary Carpenter; Enrico S. Coen ABSTRACT We show that the flowering sectors on plants mutant for floricaula ( flo ), a meristem identity gene in Antirrhinum majus , are periclinal chimeras expressing flo in either the L1, L2 or L3 cell layer. Flower morphology is almost normal...

...Rosemary Carpenter; Enrico S. Coen ABSTRACT Flower meristems comprise several distinct cell layers. To understand the role of cell interactions between and within these layers, we have generated plants chimeric for a key floral homeotic gene, floricaula ( flo ). These chimeras arose in Antirrhinum...