Ultrastructure of chemoreceptive tarsal sensilla in an armored harvestman and evidence of olfaction across Laniatores (Arachnida, Opiliones)

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dc.citation.issue2
dc.citation.volume46
dc.contributor.authorGainett, Guilherme
dc.contributor.authorMichalik, Peter
dc.contributor.authorMueller, Carsten H. G.
dc.contributor.authorGiribet, Gonzalo
dc.contributor.authorTalarico, Giovanni
dc.contributor.authorWillemart, Rodrigo H. [UNIFESP]
dc.coverageOxford
dc.date.accessioned2020-07-17T14:02:44Z
dc.date.available2020-07-17T14:02:44Z
dc.date.issued2017
dc.description.abstractHarvestmen (Arachnida, Opiliones) are especially dependent on chemical cues and are often regarded as animals that rely mainly on contact chemoreception. Information on harvestman sensilla is scarce when compared to other arachnid orders, especially concerning internal morphology. Using scanning (SEM) and transmission (TEM) electron microscopy, we investigated tarsal sensilla on the distal tarsomeres (DT) of all leg pairs in Heteromitobates discolor (Laniatores, Gonyleptidae). Furthermore, we explored the typological diversity of sensilla present on the DT I and II in members of the suborder Laniatores, which include two thirds of the formally described opilionid fauna, using species from 17 families representing all main laniatorian lineages. Our data revealed that DT I and II of H. discolor are equipped with wall pored falciform hairs (two types), wall-pored sensilla chaetica (two types) and tip-pored sensilla chaetica, while DT III and IV are mainly covered with trichomes (non-sensory) and tip-pored sensilla chaetica. The ultrastructural characteristics support an olfactory function for all wall-pored sensilla and a dual gustatory/mechanoreceptive function for tip-pored sensilla chaetica. Based on our comparative SEM survey, we show that wall-pored sensilla occur in all investigated Laniatores, demonstrating their widespread occurrence in the suborder and highlighting the importance of both legs I and II as the sensory appendages of laniatorean harvestmen. Our results provide the first morphological evidence for olfactory receptors in Laniatores and suggest that olfaction is more important for harvestmen than previously thought. (C) 2016 Elsevier Ltd. All rights reserved.en
dc.description.affiliationUniv Sao Paulo, Escola Artes Ciencias & Humanidades, Lab Ecol Sensorial & Comportamento Artropodes, Rua Arlindo Bettio,1000, BR-03828000 Sao Paulo, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Inst Biociencias, Programa Pos Grad Zool, Rua Matito,321,Travessa 14, BR-05508090 Sao Paulo, SP, Brazil
dc.description.affiliationErnst Moritz Arndt Univ Greifswald, Museum & Inst Zool, Dept Gen & Systemat Zool, Loitzer Str 26, D-17489 Greifswald, Germany
dc.description.affiliationHarvard Univ, Museum Comparat Zool, 26 Oxford St, Cambridge, MA 02138 USA
dc.description.affiliationHarvard Univ, Dept Organism & Evolutionary Biol, 26 Oxford St, Cambridge, MA 02138 USA
dc.description.affiliationUniv Fed Sao Paulo, Programa Pos Grad Ecol & Evolucao, Campus Diadema,Rua Prof Artur Riedel,275, BR-09972270 Diadema, SP, Brazil
dc.description.affiliationUnifespUniv Fed Sao Paulo, Programa Pos Grad Ecol & Evolucao, Campus Diadema,Rua Prof Artur Riedel,275, BR-09972270 Diadema, SP, Brazil
dc.description.sourceWeb of Science
dc.description.sponsorshipFundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP)
dc.description.sponsorshipLaudier Histology grant
dc.description.sponsorshipMCZ
dc.description.sponsorshipFAPESP grants
dc.description.sponsorshipIDFAPESP:2013/23189-1
dc.description.sponsorshipIDFAPESP: 2014/07671-0
dc.description.sponsorshipIDFAPESP: 2010/00915-0
dc.description.sponsorshipIDFAPESP: 2015/01815-9
dc.format.extent178-195
dc.identifierhttp://dx.doi.org/10.1016/j.asd.2016.12.005
dc.identifier.citationArthropod Structure & Development. Oxford, v. 46, n. 2, p. 178-195, 2017.
dc.identifier.doi10.1016/j.asd.2016.12.005
dc.identifier.issn1467-8039
dc.identifier.urihttps://repositorio.unifesp.br/handle/11600/54982
dc.identifier.wosWOS:000398868700004
dc.language.isoeng
dc.publisherElsevier Sci Ltd
dc.relation.ispartofArthropod Structure & Development
dc.rightsAcesso restrito
dc.subjectOlfactionen
dc.subjectGonyleptidaeen
dc.subjectGoniosomatinaeen
dc.subjectWall poresen
dc.subjectSensory morphologyen
dc.subjectChemoreceptorsen
dc.titleUltrastructure of chemoreceptive tarsal sensilla in an armored harvestman and evidence of olfaction across Laniatores (Arachnida, Opiliones)en
dc.typeArtigo
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