Skip to main content
NCBI home page
The Plant Cell logoLink to The Plant Cell
. 1997 Jun;9(6):841–857. doi: 10.1105/tpc.9.6.841

Genes involved in organ separation in Arabidopsis: an analysis of the cup-shaped cotyledon mutant.

M Aida 1, T Ishida 1, H Fukaki 1, H Fujisawa 1, M Tasaka 1
PMCID: PMC156962  PMID: 9212461

Abstract

Mutations in CUC1 and CUC2 (for CUP-SHAPED COTYLEDON), which are newly identified genes of Arabidopsis, caused defects in the separation of cotyledons (embryonic organs), sepals, and stamens (floral organs) as well as in the formation of shoot apical meristems. These defects were most apparent in the double mutant. Phenotypes of the mutants suggest a common mechanism for separating adjacent organs within the same whorl in both embryos and flowers. We cloned the CUC2 gene and found that the encoded protein was homologous to the petunia NO APICAL MERISTEM (NAM) protein, which is thought to act in the development of embryos and flowers.

Full Text

The Full Text of this article is available as a PDF (5.2 MB).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.

  1. An Y. Q., McDowell J. M., Huang S., McKinney E. C., Chambliss S., Meagher R. B. Strong, constitutive expression of the Arabidopsis ACT2/ACT8 actin subclass in vegetative tissues. Plant J. 1996 Jul;10(1):107–121. doi: 10.1046/j.1365-313x.1996.10010107.x. [DOI] [PubMed] [Google Scholar]
  2. Bell C. J., Ecker J. R. Assignment of 30 microsatellite loci to the linkage map of Arabidopsis. Genomics. 1994 Jan 1;19(1):137–144. doi: 10.1006/geno.1994.1023. [DOI] [PubMed] [Google Scholar]
  3. Fukaki H., Fujisawa H., Tasaka M. Gravitropic response of inflorescence stems in Arabidopsis thaliana. Plant Physiol. 1996 Mar;110(3):933–943. doi: 10.1104/pp.110.3.933. [DOI] [PMC free article] [PubMed] [Google Scholar]
  4. Fukaki H., Fujisawa H., Tasaka M. SGR1, SGR2, SGR3: novel genetic loci involved in shoot gravitropism in Arabidopsis thaliana. Plant Physiol. 1996 Mar;110(3):945–955. doi: 10.1104/pp.110.3.945. [DOI] [PMC free article] [PubMed] [Google Scholar]
  5. Jürgens G. Axis formation in plant embryogenesis: cues and clues. Cell. 1995 May 19;81(4):467–470. doi: 10.1016/0092-8674(95)90065-9. [DOI] [PubMed] [Google Scholar]
  6. Jürgens G., Torres Ruiz R. A., Berleth T. Embryonic pattern formation in flowering plants. Annu Rev Genet. 1994;28:351–371. doi: 10.1146/annurev.ge.28.120194.002031. [DOI] [PubMed] [Google Scholar]
  7. Konieczny A., Ausubel F. M. A procedure for mapping Arabidopsis mutations using co-dominant ecotype-specific PCR-based markers. Plant J. 1993 Aug;4(2):403–410. doi: 10.1046/j.1365-313x.1993.04020403.x. [DOI] [PubMed] [Google Scholar]
  8. Long J. A., Moan E. I., Medford J. I., Barton M. K. A member of the KNOTTED class of homeodomain proteins encoded by the STM gene of Arabidopsis. Nature. 1996 Jan 4;379(6560):66–69. doi: 10.1038/379066a0. [DOI] [PubMed] [Google Scholar]
  9. Mandel M. A., Gustafson-Brown C., Savidge B., Yanofsky M. F. Molecular characterization of the Arabidopsis floral homeotic gene APETALA1. Nature. 1992 Nov 19;360(6401):273–277. doi: 10.1038/360273a0. [DOI] [PubMed] [Google Scholar]
  10. Pickett F. B., Meeks-Wagner D. R. Seeing double: appreciating genetic redundancy. Plant Cell. 1995 Sep;7(9):1347–1356. doi: 10.1105/tpc.7.9.1347. [DOI] [PMC free article] [PubMed] [Google Scholar]
  11. Smyth D. R., Bowman J. L., Meyerowitz E. M. Early flower development in Arabidopsis. Plant Cell. 1990 Aug;2(8):755–767. doi: 10.1105/tpc.2.8.755. [DOI] [PMC free article] [PubMed] [Google Scholar]
  12. Souer E., van Houwelingen A., Kloos D., Mol J., Koes R. The no apical meristem gene of Petunia is required for pattern formation in embryos and flowers and is expressed at meristem and primordia boundaries. Cell. 1996 Apr 19;85(2):159–170. doi: 10.1016/s0092-8674(00)81093-4. [DOI] [PubMed] [Google Scholar]
  13. Sussex I. M. Developmental programming of the shoot meristem. Cell. 1989 Jan 27;56(2):225–229. doi: 10.1016/0092-8674(89)90895-7. [DOI] [PubMed] [Google Scholar]
  14. Van Der Krol A. R., Chua N. H. Flower Development in Petunia. Plant Cell. 1993 Oct;5(10):1195–1203. doi: 10.1105/tpc.5.10.1195. [DOI] [PMC free article] [PubMed] [Google Scholar]
  15. Weigel D., Meyerowitz E. M. The ABCs of floral homeotic genes. Cell. 1994 Jul 29;78(2):203–209. doi: 10.1016/0092-8674(94)90291-7. [DOI] [PubMed] [Google Scholar]
  16. Yadegari R., Paiva GRd., Laux T., Koltunow A. M., Apuya N., Zimmerman J. L., Fischer R. L., Harada J. J., Goldberg R. B. Cell Differentiation and Morphogenesis Are Uncoupled in Arabidopsis raspberry Embryos. Plant Cell. 1994 Dec;6(12):1713–1729. doi: 10.1105/tpc.6.12.1713. [DOI] [PMC free article] [PubMed] [Google Scholar]

Articles from The Plant Cell are provided here courtesy of Oxford University Press

RESOURCES