Phylogeny and adaptation in the Encelia alliance (Asteraceae: Heliantheae)

9/28/97


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Table of Contents

Phylogeny

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Geraea

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Enceliopsis

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Encelia

frutescens clade

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californica clade

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Spontaneous natural hybrids are common

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Hybridization in Encelia

Species of hybrid origin

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Shared phenotypic apomorphies - E. virginensis

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Chimeric ITS: E. virginensis (13 base difference)

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Shared phenotypic apomorphies - E. asperifolia

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RAPD data: E. asperifolia

Chimeric ITS: E. asperifolia (21 base difference)

Theoretical Mechanisms

Theoretical Mechanisms

Xerophytic adaptations

Ecotypes of Encelia farinosa

Evolution of Encelia

Acknowledgments

Author: Curtis Clark

Email: jcclark@csupomona.edu

Home Page: http://www.cpp.edu /~jcclark/