Abstract
Genetic studies demonstrate that two Arabidopsis genes, CAULIFLOWER and APETALA1, encode partially redundant activities involved in the formation of floral meristems, the first step in the development of flowers. Isolation of the CAULIFLOWER gene from Arabidopsis reveals that it is closely related in sequence to APETALA1. Like APETALA1, CAULIFLOWER is expressed in young flower primordia and encodes a MADS-domain, indicating that it may function as a transcription factor. Analysis of the cultivated garden variety of cauliflower (Brassica oleracea var. botrytis) reveals that its CAULIFLOWER gene homolog is not functional, suggesting a molecular basis for one of the oldest recognized flower abnormalities.
Publication types
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Research Support, Non-U.S. Gov't
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Research Support, U.S. Gov't, Non-P.H.S.
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Research Support, U.S. Gov't, P.H.S.
MeSH terms
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Alleles
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Amino Acid Sequence
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Arabidopsis / chemistry
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Arabidopsis / genetics*
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Arabidopsis / physiology
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Arabidopsis Proteins*
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Base Sequence
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Brassica / genetics
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DNA-Binding Proteins / chemistry
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DNA-Binding Proteins / genetics*
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DNA-Binding Proteins / physiology
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Genes, Plant*
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Genetic Complementation Test
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Homeodomain Proteins*
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In Situ Hybridization
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MADS Domain Proteins*
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Molecular Sequence Data
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Phenotype
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Plant Proteins / chemistry
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Plant Proteins / genetics*
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Plant Proteins / physiology
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RNA, Plant / genetics
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RNA, Plant / metabolism
Substances
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AP1 protein, Arabidopsis
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Arabidopsis Proteins
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CAL protein, Arabidopsis
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DNA-Binding Proteins
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Homeodomain Proteins
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MADS Domain Proteins
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Plant Proteins
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RNA, Plant
Associated data
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GENBANK/L36925
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GENBANK/L36926
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GENBANK/L36927