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LEAFY controls floral meristem identity in Arabidopsis
- Source :
- Cell. 69:843-859
- Publication Year :
- 1992
- Publisher :
- Elsevier BV, 1992.
-
Abstract
- The first step in flower development is the generation of a floral meristem by the inflorescence meristem. We have analyzed how this process is affected by mutant alleles of the Arabidopsis gene LEAFY. We show that LEAFY interacts with another floral control gene, APETALA1, to promote the transition from inflorescence to floral meristem. We have cloned the LEAFY gene, and, consistent with the mutant phenotype, we find that LEAFY RNA is expressed strongly in young flower primordia. LEAFY expression precedes expression of the homeotic genes AGAMOUS and APETALA3, which specify organ identity within the flower. Furthermore, we demonstrate that LEAFY is the Arabidopsis homolog of the FLORICAULA gene, which controls floral meristem identity in the distantly related species Antirrhinum majus.
- Subjects :
- Molecular Sequence Data
Plant Development
Biology
General Biochemistry, Genetics and Molecular Biology
Botany
Amino Acid Sequence
Cloning, Molecular
Leafy
Plant Proteins
Genetics
Meristem determinacy
Base Sequence
Biochemistry, Genetics and Molecular Biology(all)
Arabidopsis Proteins
Agamous
fungi
Genes, Homeobox
food and beverages
Plants
Meristem
ABC model of flower development
Blotting, Southern
Meristem initiation
Gene Expression Regulation
Floral meristem determinacy
Mutation
Flower morphogenesis
Transcription Factors
Subjects
Details
- ISSN :
- 00928674
- Volume :
- 69
- Database :
- OpenAIRE
- Journal :
- Cell
- Accession number :
- edsair.doi.dedup.....a66a76d0e425ebd78893fd41dd248007