Cophylogeny of Figs, Pollinators, Gallers, and Parasitoids

Summer I. Silvieus, Wendy L. Clement and George D. Weiblen

in Specialization, Speciation, and Radiation

Published by University of California Press

Published in print March 2008 | ISBN: 9780520251328
Published online March 2012 | e-ISBN: 9780520933828 | DOI:
Cophylogeny of Figs, Pollinators, Gallers, and Parasitoids

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Plant–insect cophylogeny has been investigated across a range of ecological conditions including herbivory, mutualism, and seed parasitism. It has been argued from phylogeny that non-pollinating seed gallers are less closely cospeciated with figs than pollinators sharing the same hosts. It is not known if the same is true for fig wasp parasitoids. This chapter compares patterns of diversification in figs (Ficus subgenus Sycomorus) and three fig-associated insect lineages: pollinating fig wasps, non-pollinating seed gallers, and their parasitoids. Molecular phylogenies of each participant in this tritrophic interaction can illuminate histories of ancient association ranging from codivergence to host switching. This chapter distinguishes cospeciation from coevolution and discusses sampling and DNA sequencing, phylogenetic analysis, reconciliation analysis, phylogenies of figs and wasps, host specificity of non-pollinating fig wasps, and double dating of figs and fig wasps.

Keywords: cophylogeny; figs; pollinators; parasitoids; fig wasps; cospeciation; coevolution; host specificity; phylogeny; diversification

Chapter.  9787 words.  Illustrated.

Subjects: Evolutionary Biology

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