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

Autor(en): Junker, Robert R.
Kuppler, Jonas
Amo, Luisa
Blande, James D.
Borges, Renee M.
van Dam, Nicole M.
Dicke, Marcel
Doetterl, Stefan
Ehlers, Bodil K.
Etl, Florian
Gershenzon, Jonathan
Glinwood, Robert
Gols, Rieta
Groot, Astrid T.
Heil, Martin
Hoffmeister, Mathias
Holopainen, Jarmo K.
Jarau, Stefan
John, Lena
Kessler, Andre
Knudsen, Jette T.
Kost, Christian 
Larue-Kontic, Anne-Amelie C.
Leonhardt, Sara Diana
Lucas-Barbosa, Dani
Majetic, Cassie J.
Menzel, Florian
Parachnowitsch, Amy L.
Pasquet, Remy S.
Poelman, Erik H.
Raguso, Robert A.
Ruther, Joachim
Schiestl, Florian P.
Schmitt, Thomas
Tholl, Dorothea
Unsicker, Sybille B.
Verhulst, Niels
Visser, Marcel E.
Weldegergis, Berhane T.
Koellner, Tobias G.
Stichwörter: biosynthetic constraints; chemical communication; correlation network analysis; DIVERSITY; EMISSION; floral scents; MODELS; MORPHOLOGY; PATHWAY; phenotypic integration; Plant Sciences; SELECTION; SEX-PHEROMONE; SIGNAL; vegetative scents; VOLATILES
Erscheinungsdatum: 2018
Herausgeber: WILEY
Band: 220
Ausgabe: 3
Startseite: 739
Seitenende: 749
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.
ISSN: 0028646X
DOI: 10.1111/nph.14505

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