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Abstract Detail


Evolutionary Development

Endress, Peter K. [1].

Flower development and evolution viewed from a diversity perspective.

Two contrasting and complementary approaches to understanding flower development are to focus on model species (molecular genetics) and to focus on the diversity of forms throughout the flowering plants (comparative morphology). Questions such as: What is the developmental basis for key innovations and for the impressive diversity in flower evolution? or: What are developmental potentials and limitations for the evolution of flower form? cannot be tackled without considering the angiosperms as a whole. This talk will address selected topics of flower development from a diversity perspective, some of which are also being studied by molecular developmental geneticists, including the role of the primary morphological surface of flowers, floral phyllotaxis, floral symmetry, angiospermy, synorganization and postgenital fusion of floral organs, and extreme forms of floral architecture. It will be a continuing challenge to link the two levels of model species and of flowering plants as a whole in feasible ways in order to gain more insight into flower evolution.


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1 - University of Zurich, Institute of Systematic Botany, Zollikerstrasse 107, Zurich, 8008, Switzerland

Keywords:
Flower development
flower evolution
Angiosperms
model species
diversity approach.

Presentation Type: ASPB Major Symposium
Session: S04
Location: International Ballroom/Hilton
Date: Monday, July 9th, 2007
Time: 3:40 PM
Number: S04003
Abstract ID:1161


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