| Title: | Differential Evolutionary History in Visual and Olfactory Floral Cues of the Bee-Pollinated Genus Campanula (Campanulaceae) |
| Author(s): | Milet-Pinheiro P; Santos PSC; Prieto-Benitez S; Ayasse M; Dotterl S; |
| Address: | "Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, Albert-Einstein Allee, 89081 Ulm, Germany. Departamento de Biologia y Geologia, Fisica y Quimica Inorganica, Universidad Rey Juan Carlos-ESCET, C/Tulipan, s/n, Mostoles, 28933 Madrid, Spain. Ecotoxicology of Air Pollution Group, Environmental Department, CIEMAT, Avda. Complutense, 40, 28040 Madrid, Spain. Department of Biosciences, Paris-Lodron-University of Salzburg, Hellbrunnerstrasse 34, 5020 Salzburg, Austria" |
| ISSN/ISBN: | 2223-7747 (Print) 2223-7747 (Electronic) 2223-7747 (Linking) |
| Abstract: | "Visual and olfactory floral signals play key roles in plant-pollinator interactions. In recent decades, studies investigating the evolution of either of these signals have increased considerably. However, there are large gaps in our understanding of whether or not these two cue modalities evolve in a concerted manner. Here, we characterized the visual (i.e., color) and olfactory (scent) floral cues in bee-pollinated Campanula species by spectrophotometric and chemical methods, respectively, with the aim of tracing their evolutionary paths. We found a species-specific pattern in color reflectance and scent chemistry. Multivariate phylogenetic statistics revealed no influence of phylogeny on floral color and scent bouquet. However, univariate phylogenetic statistics revealed a phylogenetic signal in some of the constituents of the scent bouquet. Our results suggest unequal evolutionary pathways of visual and olfactory floral cues in the genus Campanula. While the lack of phylogenetic signal on both color and scent bouquet points to external agents (e.g., pollinators, herbivores) as evolutionary drivers, the presence of phylogenetic signal in at least some floral scent constituents point to an influence of phylogeny on trait evolution. We discuss why external agents and phylogeny differently shape the evolutionary paths in floral color and scent of closely related angiosperms" |
| Keywords: | Campanula bee olfaction bee vision floral color floral scents floral trait evolution mutualism phylogenetic PCA phylogenetic inertia pollinator-mediated selection; |
| Notes: | "PubMed-not-MEDLINEMilet-Pinheiro, Paulo Santos, Pablo Sandro Carvalho Prieto-Benitez, Samuel Ayasse, Manfred Dotterl, Stefan eng AY 12/5-1, DO 1250/6-1/Deutsche Forschungsgemeinschaft/ Switzerland 2021/08/11 Plants (Basel). 2021 Jul 2; 10(7):1356. doi: 10.3390/plants10071356" |
