• We are sorry, but NCBI web applications do not support your browser and may not function properly. More information
Logo of plntcellLink to Publisher's site
Plant Cell. Dec 1989; 1(12): 1195–1208.
PMCID: PMC159855

AP2 Gene Determines the Identity of Perianth Organs in Flowers of Arabidopsis thaliana.


We have examined the floral morphology and ontogeny of three mutants of Arabidopsis thaliana, Ap2-5, Ap2-6, and Ap2-7, that exhibit homeotic changes of the perianth organs because of single recessive mutations in the AP2 gene. Homeotic conversions observed are: sepals to carpels in all three mutants, petals to stamens in Ap2-5, and petals to carpels in Ap2-6. Our analysis of these mutants suggests that the AP2 gene is required early in floral development to direct primordia of the first and second whorls to develop as perianth rather than as reproductive organs. In addition, our results support one of the two conflicting hypotheses concerning the structures of the calyx and the gynoecium in the Brassicaceae.

Full Text

The Full Text of this article is available as a PDF (4.4M).

Selected References

These references are in PubMed. This may not be the complete list of references from this article.
  • Hagberg L, Hull R, Hull S, Falkow S, Freter R, Svanborg Edén C. Contribution of adhesion to bacterial persistence in the mouse urinary tract. Infect Immun. 1983 Apr;40(1):265–272. [PMC free article] [PubMed]
  • Spurr AR. A low-viscosity epoxy resin embedding medium for electron microscopy. J Ultrastruct Res. 1969 Jan;26(1):31–43. [PubMed]
  • Suiter KA, Wendel JF, Case JS. LINKAGE-1: a PASCAL computer program for the detection and analysis of genetic linkage. J Hered. 1983 May-Jun;74(3):203–204. [PubMed]

Articles from The Plant Cell are provided here courtesy of American Society of Plant Biologists


Related citations in PubMed

See reviews...See all...

Cited by other articles in PMC

See all...


Recent Activity

Your browsing activity is empty.

Activity recording is turned off.

Turn recording back on

See more...