| Title: | The subgenual organ complex in the cave cricket Troglophilus neglectus (Orthoptera: Rhaphidophoridae) : comparative innervation and sensory evolution |
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| Authors: | ID Strauß, Johannes (Author)
ID Stritih Peljhan, Nataša (Author)
ID Lakes-Harlan, Reinhard (Author) |
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| Files: |  URL - Source URL, visit http://rsos.royalsocietypublishing.org/content/royopensci/1/2/140240.full.pdf
 PDF - Presentation file, download (1,21 MB)
MD5: E0B268A7001487CD39586CAB0FD7742F
URL - Source URL, visit https://doi.org/10.1098/rsos.140240
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  NIB - National Institute of Biology
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| Abstract: | Comparative studies of the organization of nervous systems and sensory organs can reveal their evolution and specific adaptations. In the forelegs of some Ensifera (including crickets and tettigoniids), tympanal hearing organs are located in close proximity to the mechanosensitive subgenual organ (SGO). In the present study, the SGO complex in the non-hearing cave cricket Troglophilus neglectus (Rhaphidophoridae) is investigated for the neuronal innervation pattern and for organs homologous to the hearing organs in related taxa. We analyse the innervation pattern of the sensory organs (SGO and intermediate organ (IO)) and its variability between individuals. In T. neglectus, the IO consists of two major groups of closely associated sensilla with different positions. While the distal-most sensilla superficially resemble tettigoniid auditory sensilla in location and orientation, the sensory innervation does not show these two groups to be distinct organs. Though variability in the number of sensory nerve branches occurs, usually either organ is supplied by a single nerve branch. Hence, no sensory elements clearly homologous to the auditory organ are evident. In contrast to other non-hearing Ensifera, the cave cricket sensory structures are relatively simple, consistent with a plesiomorphic organization resembling sensory innervation in grasshoppers and stick insects. |
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| Keywords: | neuroanatomy, chordotonal organ, mechanoreceptor, sensory innervation, neural phylogeny |
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| Publication status: | Published |
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| Publication version: | Version of Record |
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| Publication date: | 01.10.2014 |
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| Year of publishing: | 2014 |
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| Number of pages: | str. 1-14 |
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| Numbering: | Vol. 1 |
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| PID: | 20.500.12556/DiRROS-20009  |
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| UDC: | 591.5 |
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| ISSN on article: | 2054-5703 |
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| DOI: | 10.1098/rsos.140240 |
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| COBISS.SI-ID: | 3221583 |
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| Note: | Nasl. z nasl. zaslona;
Opis vira z dne 7. 10. 2014;
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| Publication date in DiRROS: | 02.08.2024 |
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| Views: | 264 |
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| Downloads: | 253 |
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| Metadata: |    |
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