Journal article
Cuticular hydrocarbons of Gonipterus weevils: are there species differences?
Chemoecology, Vol.31(3), pp.159-167
2021
Abstract
Gonipterus weevils have been a taxonomic challenge for many years, with implications on our understanding of invasive species, host plant relationships and natural enemies. We assessed cuticular hydrocarbon (CHC) analysis as a tool for discrimination of some of the many species of Gonipterus occurring in Australia. Weevils were collected across several localities and kept under identical conditions prior to a whole-body wash for extraction of CHCs in hexane. Weevil identifications were confirmed using morphology and molecular tools. CHC extracts were analyzed by gas chromatography–mass spectrometry (GC–MS) and the relative peak areas in profiles were compared; compounds were identified according to MS fragmentation and retention indices. CHC profiles of the seven species of Gonipterus analyzed differed from each other, and from another weevil genus (Oxyops), used as an outgroup. The compounds that contributed most to species differences were alkanes, alkenes and methyl branched alkanes. Within some species, locality of collection affected CHC profiles. Our study presents CHC analysis as a promising tool for distinction of Gonipterus species.
Details
- Title
- Cuticular hydrocarbons of Gonipterus weevils: are there species differences?
- Authors
- Natalia M Souza (Corresponding Author) - University of the Sunshine Coast, Queensland, Forest Industries Research CentreMichelle L Schröder (Author) - University of PretoriaR. Andrew Hayes (Author) - University of the Sunshine Coast, Queensland, Forest Industries Research CentreJan E Bello (Author) - University of California, RiversideHelen F Nahrung (Author) - University of the Sunshine Coast, Queensland, Forest Industries Research Centre
- Publication details
- Chemoecology, Vol.31(3), pp.159-167
- Publisher
- Springer
- DOI
- 10.1007/s00049-021-00337-5
- ISSN
- 1423-0445
- Organisation Unit
- Forest Research Institute; Forest Industries Research Centre; University of the Sunshine Coast, Queensland; USC Business School - Legacy
- Language
- English
- Record Identifier
- 99510607502621
- Output Type
- Journal article
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