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Review
. 2018 Feb;217(3):1035-1041.
doi: 10.1111/nph.14879. Epub 2017 Nov 13.

Convergent and divergent evolution in carnivorous pitcher plant traps

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Free article
Review

Convergent and divergent evolution in carnivorous pitcher plant traps

Chris J Thorogood et al. New Phytol. 2018 Feb.
Free article

Abstract

Contents Summary 1035 I. Introduction 1035 II. Evolution of the pitcher 1036 III. Convergent evolution 1036 IV. Divergent evolution 1038 V. Adaptive radiation and speciation 1040 VI. Conclusions and perspectives 1040 Acknowledgements 1040 References 1040 SUMMARY: The pitcher trap is a striking example of convergent evolution across unrelated carnivorous plant lineages. Convergent traits that have evolved across pitcher plant lineages are essential for trap function, suggesting that key selective pressures are in action. Recent studies have also revealed patterns of divergent evolution in functional pitcher morphology within genera. Adaptations to differences in local prey assemblages may drive such divergence and, ultimately, speciation. Here, we review recent research on convergent and divergent evolution in pitcher plant traps, with a focus on the genus Nepenthes, which we propose as a new model for research into adaptive radiation and speciation.

Keywords: Cephalotus; Nepenthes; Sarraceniaceae; adaptive radiation; functional morphology; speciation.

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