Elicitation of Organized Pigmentation Patterns by a Chalcone Synthase Transgene

  • Richard A. Jorgensen


The problems of determination and elaboration of developmental patterns are more accessible in the case of visible patterns such as anthocyanin pigmentation patterns. Anthocyanin pigments offer the added advantage that they are completely dispensible in plant growth and development, which means that manipulation of anthocyanin pigmentation patterns generally has no deleterious or pleiotropic effects on the plant. Furthermore, many anthocyanin genes are known to act cell autonomously, so patterns of expression can visualized on a cell by cell basis. Coen et al. (1988) have discussed the basic principles behind flower color patterns with emphasis on Antirrhinum majus. Here I will focus on flower color patterns in Petunia hybrida and explain how the use of transgenes to manipulate patterns provides a tool with the potential to improve our understanding of how patterns are determined and elaborated.


Fusion Zone Pattern Determination Petunia Hybrida White Stripe Pigmentation Pattern 
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Copyright information

© Springer Science+Business Media New York 1993

Authors and Affiliations

  • Richard A. Jorgensen
    • 1
  1. 1.Department of Environmental Horticulture and Department of Vegetable CropsUniversity of California-DavisDavisUSA

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