Neuroanatomical correlates of mobility: Sensory brain centres are bigger in winged than in wingless parthenogenetic pea aphid females
| Autor: | Jochen Krauss, Kornelia Grübel, Jakob Krieger, Christophe Gadenne, Wolfgang Rössler, Jens Joschinski, Sylvia Anton, Claudia Groh |
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| Přispěvatelé: | Institut de Génétique, Environnement et Protection des Plantes (IGEPP), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-AGROCAMPUS OUEST, Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), University of Würzburg, Universität Greifswald - University of Greifswald, 292/119-1, Deutsche Forschungsgemeinschaft, Julius-Maximilians-Universität Würzburg, INRA Department SPE, Institut National de la Recherche Agronomique (INRA)-Université de Rennes (UR)-AGROCAMPUS OUEST |
| Rok vydání: | 2019 |
| Předmět: |
0106 biological sciences
0301 basic medicine Wing polyphenism animal structures Zoology Sensory system 010603 evolutionary biology 01 natural sciences Optic lobe 03 medical and health sciences Polyphenism medicine Neuropil Animals Ecology Evolution Behavior and Systematics Aphid Wing biology [SDV.BA]Life Sciences [q-bio]/Animal biology Acyrthosiphon pisum Brain food and beverages Organ Size General Medicine Parthenogenesis biology.organism_classification Antennal lobe 030104 developmental biology medicine.anatomical_structure Aphids Flight Animal Insect Science Female Central complex Developmental Biology |
| Zdroj: | Arthropod Structure and Development Arthropod Structure and Development, Elsevier, 2019, 52, pp.100883. ⟨10.1016/j.asd.2019.100883⟩ Arthropod Structure and Development, 2019, 52, pp.100883. ⟨10.1016/j.asd.2019.100883⟩ |
| ISSN: | 1467-8039 |
| DOI: | 10.1016/j.asd.2019.100883 |
| Popis: | Many aphid species reproduce parthenogenetically throughout most of the year, with individuals having identical genomes. Nevertheless, aphid clones display a marked polyphenism with associated behavioural differences. Pea aphids (Acyrthosiphon pisum), when crowded, produce winged individuals, which have a larger dispersal range than wingless individuals. We examined here if brain structures linked to primary sensory processing and high-order motor control change in size as a function of wing polyphenism. Using micro-computing tomography (micro-CT) scans and immunocytochemical staining with anti-synapsin antibody, we reconstructed primary visual (optic lobes) and olfactory (antennal lobes) neuropils, together with the central body of winged and wingless parthenogenetic females of A. pisum for volume measurements. Absolute neuropil volumes were generally bigger in anti-synapsin labelled brains compared to micro-CT scans. This is potentially due to differences in rearing conditions of the used aphids. Independent of the method used, however, winged females consistently had larger antennal lobes and optic lobes than wingless females in spite of a larger overall body size of wingless compared to winged females. The volume of the central body, on the other hand was not significantly different between the two morphs. The larger primary sensory centres in winged aphids might thus provide the neuronal substrate for processing different environmental information due to the increased mobility during flight. |
| Databáze: | OpenAIRE |
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