• RI - Unifesp
    • Documentos
    • Tutoriais
    • Perguntas frequentes
    • Atendimento
    • Equipe
    • português (Brasil)
    • English
    • español
  • Sobre
    • RI Unifesp
    • Documentos
    • Tutoriais
    • Perguntas frequentes
    • Atendimento
    • Equipe
  • English 
    • português (Brasil)
    • English
    • español
    • português (Brasil)
    • English
    • español
  • Login
View Item 
  •   DSpace Home
  • Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF)
  • ICAQF - Artigos
  • View Item
  •   DSpace Home
  • Instituto de Ciências Ambientais, Químicas e Farmacêuticas (ICAQF)
  • ICAQF - Artigos
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Do sexually dimorphic glands in the harvestman gryne perlata (arachnida: opiliones) release contact pheromones during mating?

Thumbnail
Date
2016
Author
Dias, Jessica M.
Willemart, Rodrigo H. [UNIFESP]
Type
Artigo
ISSN
1802-8829
Is part of
European Journal Of Entomology
DOI
10.14411/eje.2016.022
Metadata
Show full item record
Abstract
There are records of glands that produce sexual pheromones that are released into the environment or applied directly on sexual partners. Within Opiliones (Arachnida), several harvestmen in the suborder Laniatores have sexually dimorphic glands on legs I and IV, the mode of use of which is recorded only in two species but their function is unknown: while walking, males rub the glands against the substrate or against their body. Here we test an alternative and non-exclusive hypothesis that the glands present on the legs of male Gryne perlata (Cosmetidae) produce contact pheromones used in mating. We predicted that males would touch the females with the gland openings or with other male body parts previously rubbed by these glands. We also predicted that there are chemoreceptors on those parts of the females where males touch them. We analyzed 13 videos of G. perlata mating, a species in which the males have glands on legs I and IV of unknown function. We also analyzed 14 videos of Discocyrtus pectinifemur (Gonyleptidae) mating as a control, a species that lacks these glands. Finally, we looked for chemoreceptors on the legs of female G. perlata using a scanning electron microscope. During copulation, males of both species rubbed the legs of females with their first pair of legs, but not with the regions of these legs where the openings of the glands are. The fourth pair of legs were only used to support the body. Rubbing other body parts of the female by males with their glands was not observed during mating. Setae on the legs of the female did not have tip pores and therefore do not seem to be chemoreceptors. We therefore did not find any evidence that these sexually dimorphic glands in G. perlata release contact pheromones during mating.
Citation
European Journal Of Entomology. Ceske budejovice, v. 113, p. 184-191, 2016.
Keywords
Arachnida
Opiliones
Laniatores
Cosmetidae
Gryne Perlata
Gonyleptidae
Discocyrtus Pectinifemur
Chemical Communication
Copulation
Sexually Dimorphic GlandsNeotropical Harvestman
Chemical Communication
Copula Duration
Paternal Care
Behavior
Ultrastructure
Gonyleptidae
Laniatores
Cyphophthalmi
Oviposition
Sponsorship
Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) [2010/00915-0]
Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPq)
URI
http://repositorio.unifesp.br/handle/11600/49443
Collections
  • ICAQF - Artigos [1056]

DSpace software copyright © 2002-2016  DuraSpace
Contact Us
Theme by 
Atmire NV
 

 

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsBy Submit DateThis CollectionBy Issue DateAuthorsTitlesSubjectsBy Submit Date

My Account

Login

Statistics

View Usage Statistics

DSpace software copyright © 2002-2016  DuraSpace
Contact Us
Theme by 
Atmire NV