Publication Date:
1996-11-29
Description:
The Arabidopsis gene AGAMOUS is required for male and female reproductive organ development and for floral determinacy. Reverse genetics allowed the isolation of a transposon-induced mutation in ZAG1, the maize homolog of AGAMOUS. ZAG1 mutants exhibited a loss of determinacy, but the identity of reproductive organs was largely unaffected. This suggested a redundancy in maize sex organ specification that led to the identification and cloning of a second AGAMOUS homolog, ZMM2, that has a pattern of expression distinct from that of ZAG1. C-function organ identity in maize (as defined by the A, B, C model of floral organ development) may therefore be orchestrated by two closely related genes, ZAG1 and ZMM2, with overlapping but nonidentical activities.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Mena, M -- Ambrose, B A -- Meeley, R B -- Briggs, S P -- Yanofsky, M F -- Schmidt, R J -- New York, N.Y. -- Science. 1996 Nov 29;274(5292):1537-40.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biology and Center for Molecular Genetics, University of California, San Diego, 9500 Gilman Drive, La Jolla, CA 92093, USA. rschmidt@ucsd.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/8929416" target="_blank"〉PubMed〈/a〉
Keywords:
Alleles
;
Amino Acid Sequence
;
DNA Transposable Elements
;
DNA-Binding Proteins/chemistry/*genetics
;
Gene Expression
;
*Genes, Plant
;
MADS Domain Proteins
;
Microscopy, Electron, Scanning
;
Molecular Sequence Data
;
Morphogenesis
;
Mutation
;
Phenotype
;
Plant Proteins/chemistry/*genetics
;
RNA, Messenger/genetics/metabolism
;
RNA, Plant/genetics/metabolism
;
Transcription Factors/*genetics
;
Zea mays/*genetics/*growth & development/ultrastructure
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
