7 Works

Data from: A below ground herbivore shapes root defensive chemistry in natural plant populations

Meret Huber, Zoe Bont, Julia Fricke, Théo Brillatz, Zohra Aziz, Jonathan Gershenzon & Matthias Erb
Plants display extensive intraspecific variation in secondary metabolites. However, the selective forces shaping this diversity remain often unknown, especially below ground. Using Taraxacum officinale and its major native insect root herbivore Melolontha melolontha, we tested whether below ground herbivores drive intraspecific variation in root secondary metabolites. We found that high M. melolontha infestation levels over the last decades are associated with high concentrations of major root latex secondary metabolites across 21 central European T. officinale...

Data from: Experimental evolution of metabolic dependency in bacteria

Glen D'Souza, Christian Kost & Glen D’Souza
Bacteria frequently lose biosynthetic genes, thus making them dependent on an environmental uptake of the corresponding metabolite. Despite the ubiquity of this 'genome streamlining', it is generally unclear whether the concomitant loss of biosynthetic functions is favored by natural selection or rather caused by random genetic drift. Here we demonstrate experimentally that a loss of metabolic functions is strongly selected for when the corresponding metabolites can be derived from the environment. Serially propagating replicate populations...

Data from: Hoverfly preference for high honeydew amounts creates enemy-free space for aphids colonizing novel host plants

Ilka Vosteen, Jonathan Gershenzon & Grit Kunert
The existence of an enemy-free space can play an important role in aphid host race formation processes, but little is known about the mechanisms that create an area of low predation pressure on particular host plants. In this paper we identify a mechanism generating lower predation pressure that promotes the maintenance of the different host races of the pea aphid (Acyrthosiphon pisum) complex, a well-studied model for ecological speciation. The pea aphid consists of at...

Data from: A Z-linked sterility locus causes sexual abstinence in hybrid females and facilitates speciation in Spodoptera frugiperda

Silvia Kost, David G. Heckel, Atsuo Yoshido, Frantisek Marec & Astrid T. Groot
In the fall armyworm, Spodoptera frugiperda (Lepidoptera, Noctuidae), two sympatric strains have been recognized that have been termed corn strain (C) and rice strain (R), referring to their most common host plants. Both strains are reproductively isolated via a distinct prezygotic barrier as well as via an intriguing postzygotic phenomenon: when R females have mated with C males, the resulting RC hybrid females exhibit dramatically reduced fertility independent of their mating partner. Here we demonstrate...

Data from: Glaciations, gradients, and geography: multiple drivers of diversification of bush frogs in the Western Ghats Escarpment

S P Vijayakumar, Riya C. Menezes, Aditi Jayarajan & Kartik Shanker
The historical processes underlying high diversity in tropical biodiversity hotspots like the Western Ghats of Peninsular India remain poorly understood. We sampled bush frogs on 13 massifs across the Western Ghats Escarpment and examined the relative influence of Quaternary glaciations, ecological gradients and geological processes on the spatial patterns of lineage and clade diversification. The results reveal a large in situ radiation (more than 60 lineages), exhibiting geographical structure and clade-level endemism, with two deeply...

Data from: Trichobaris weevils distinguish amongst toxic host plants by sensing volatiles that do not affect larval performance

Gisuk Lee, Youngsung Joo, Celia Diezel, Eun Ju Lee, Ian T. Baldwin & Sang-Gyu Kim
Herbivorous insects use plant metabolites to inform their host plant selection for oviposition. These host-selection behaviours are often consistent with the preference–performance hypothesis; females oviposit on hosts that maximize the performance of their offspring. However, the metabolites used for these oviposition choices and those responsible for differences in offspring performance remain unknown for ecologically relevant interactions. Here, we examined the host-selection behaviours of two sympatric weevils, the Datura (Trichobaris compacta) and tobacco (T. mucorea) weevils...

Data from: The gut microbiota of the pine weevil is similar across Europe and resembles that of other conifer-feeding beetles

Aileen Berasategui, Karolin Axelsson, Göran Nordlander, Axel Schmidt, Anna-Karin Borg-Karlson, Jonathan Gershenzon, Olle Terenius & Martin Kaltenpoth
The pine weevil (Hylobius abietis, Coleoptera: Curculionidae) is an important pest of conifer seedlings in Europe. Despite its economic importance, little is known about the composition of its gut microbial community and the role it plays in mediating the weevil's ability to utilize conifers as a food source. Here, we characterized the gut bacterial communities of different populations of H. abietis across Europe and compared them to those of other beetles that occupy similar ecological...

Registration Year

  • 2016
    7

Resource Types

  • Dataset
    7

Affiliations

  • Max Planck Institute for Chemical Ecology
    7
  • University of Bern
    1
  • Swedish University of Agricultural Sciences
    1
  • Institute of Entomology
    1
  • AlbaNova
    1
  • Indian Institute of Science Bangalore
    1
  • University of Amsterdam
    1
  • Seoul National University
    1
  • Osnabrück University
    1