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August 1, 1990The Plant CellOpen Access

Function of the apetala-1 gene during Arabidopsis floral development.

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Authors

VIVivian F. IrishYale UniversityISI. M. SussexHarvard University

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Implication

Genetic analysis demonstrates APETALA1 regulates organ initiation and floral meristem determinacy in Arabidopsis, indicating cooperative action with other homeotic genes to establish floral patterns.

Key Points

  • To characterize the developmental role of the homeotic apetala 1 (AP1) gene and determine how it interacts with other floral patterning genes in Arabidopsis.
  • Characterized floral phenotypes of homozygous recessive apetala 1-1 (ap1-1) mutant Arabidopsis plants.
  • Constructed and analyzed double mutant combinations between ap1 and other floral homeotic mutations, including apetala 2 (ap2) and agamous (ag).
  • ap1-1 mutants exhibited homeotic transformation of sepals into bracts with secondary axillary floral buds, alongside complete loss of petals due to aborted petal primordia initiation.
  • Double mutant combinations indicated AP1 and AP2 share redundant functions in defining organ initiation patterns and collaborate with AGAMOUS to establish floral meristem determinacy.

Cite This Study

Irish et al. (1990) studied this question.

synapsesocial.com/papers/6a7109fa87f92105712807f6https://doi.org/10.1105/tpc.2.8.741
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Also Consider

Synapse has enriched 3 closely related papers on similar clinical questions. Consider them for comparative context:

  1. 1A SCANNING ELECTRON MICROSCOPIC STUDY ON THE INITIATION AND DEVELOPMENT OF FLORAL ORGANS OF BRASSICA NAPUS (CV. WESTAR)1986 · 39 citations
  2. 2Genes directing flower development in Arabidopsis.1989 · 1,229 citations
  3. 3Changes in Apical Growth and Phyllotaxis on Flowering and Reversion in Impatiens balsamina L.1984 · 38 citations