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Covariation and phenotypic integration in chemical communication displays: biosynthetic constraints and eco-evolutionary implications

Junker, Robert R and Kuppler, Jonas and Amo, Luisa and Blande, James D and Borges, Renee M and van Dam, Nicole M and Dicke, Marcel and Doetterl, Stefan and Ehlers, Bodil K and Etl, Florian and Gershenzon, Jonathan and Glinwood, Robert and Gols, Rieta and Groot, Astrid T and Heil, Martin and Hoffmeister, Mathias and Holopainen, Jarmo K and Jarau, Stefan and John, Lena and Kessler, Andre and Knudsen, Jette T and Kost, Christian and Larue-Kontic, Anne-Amelie C and Leonhardt, Sara Diana and Lucas-Barbosa, Dani and Majetic, Cassie J and Menzel, Florian and Parachnowitsch, Amy L and Pasquet, Remy S and Poelman, Erik H and Raguso, Robert A and Ruther, Joachim and Schiestl, Florian P and Schmitt, Thomas and Tholl, Dorothea and Unsicker, Sybille B and Verhulst, Niels and Visser, Marcel E and Weldegergis, Berhane T and Koellner, Tobias G (2018) Covariation and phenotypic integration in chemical communication displays: biosynthetic constraints and eco-evolutionary implications. In: NEW PHYTOLOGIST, 220 (3). pp. 739-749.

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Official URL: http://dx.doi.org/10.1111/nph.14505


Chemical communication is ubiquitous. The identification of conserved structural elements in visual and acoustic communication is well established, but comparable information on chemical communication displays (CCDs) is lacking. We assessed the phenotypic integration of CCDs in a meta-analysis to characterize patterns of covariation in CCDs and identified functional or biosynthetically constrained modules. Poorly integrated plant CCDs (i.e. low covariation between scent compounds) support the notion that plants often utilize one or few key compounds to repel antagonists or to attract pollinators and enemies of herbivores. Animal CCDs (mostly insect pheromones) were usually more integrated than those of plants (i.e. stronger covariation), suggesting that animals communicate via fixed proportions among compounds. Both plant and animal CCDs were composed of modules, which are groups of strongly covarying compounds. Biosynthetic similarity of compounds revealed biosynthetic constraints in the covariation patterns of plant CCDs. We provide a novel perspective on chemical communication and a basis for future investigations on structural properties of CCDs. This will facilitate identifying modules and biosynthetic constraints that may affect the outcome of selection and thus provide a predictive framework for evolutionary trajectories of CCDs in plants and animals.

Item Type: Journal Article
Additional Information: Copy right for this article belong to WILEY
Keywords: biosynthetic constraints; chemical communication; correlation network analysis; floral scents; phenotypic integration; vegetative scents
Department/Centre: Division of Biological Sciences > Centre for Ecological Sciences
Depositing User: Id for Latest eprints
Date Deposited: 29 Oct 2018 15:32
Last Modified: 29 Oct 2018 15:32
URI: http://eprints.iisc.ac.in/id/eprint/60977

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