GENERIC 1983792

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Predicate	Object
rdf:type	pubmed:Citation
lifeskim:mentions	umls-concept:C0017337, umls-concept:C0162741, umls-concept:C0542341, umls-concept:C1527148
pubmed:issue	8
pubmed:dateCreated	1992-11-3
pubmed:abstractText	We have characterized the floral phenotypes produced by the recessive homeotic apetala 1-1 (ap1-1) mutation in Arabidopsis. Plants homozygous for this mutation display a homeotic conversion of sepsis into brachts and the concomitant formation of floral buds in the axil of each transformed sepal. In addition, these flowers lack petals. We show that the loss of petal phenotype is due to the failure of petal primordia to be initiated. We have also constructed double mutant combinations with ap1 and other mutations affecting floral development. Based on these results, we suggest that the AP1 and the apetala 2 (AP2) genes may encode similar functions that are required to define the pattern of where floral organs arise, as well as for determinate development of the floral meristem. We propose that the AP1 and AP2 gene products act in concert with the product of the agamous (AG) locus to establish a determinate floral meristem, whereas other homeotic gene products are required for cells to differentiate correctly according to their position. These results extend the proposed role of the homeotic genes in floral development and suggest new models for the establishment of floral pattern.
pubmed:commentsCorrections	http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-103000, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-17770799, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-1968830, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-2804733, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-2896587, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-2901040, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-3868481, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-480955, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-6330566, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-6429549, http://linkedlifedata.com/resource/pubmed/commentcorrection/1983792-7062928
pubmed:language	eng
pubmed:journal	http://linkedlifedata.com/resource/pubmed/journal/9208688
pubmed:citationSubset	IM
pubmed:status	MEDLINE
pubmed:month	Aug
pubmed:issn	1040-4651
pubmed:author	pubmed-author:IrishV FVF, pubmed-author:SussexI MIM
pubmed:issnType	Print
pubmed:volume	2
pubmed:geneSymbol	AP1, AP2
pubmed:owner	NLM
pubmed:authorsComplete	Y
pubmed:pagination	741-53
pubmed:dateRevised	2010-9-10
pubmed:meshHeading	pubmed-meshheading:1983792-Arabidopsis, pubmed-meshheading:1983792-Genes, Homeobox, pubmed-meshheading:1983792-Genes, Plant, pubmed-meshheading:1983792-Mutation, pubmed-meshheading:1983792-Phenotype
pubmed:year	1990
pubmed:articleTitle	Function of the apetala-1 gene during Arabidopsis floral development.
pubmed:affiliation	Department of Biology, Osborn Memorial Laboratories, Yale University, New Haven, CT 06511.
pubmed:publicationType	Journal Article, Research Support, U.S. Gov't, Non-P.H.S.