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Journal article
Olfactory sensilla and olfactory genes in the parasitoid wasp Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)
Insects, Vol.12(11), Article 998
2021
Abstract
Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae) is a tiny natural egg parasitoid of several agricultural pest insects, which has been widely used in the biological control for Plutella xylostella, Helicoverpa armigera, Spodoptera frugiperda and Ectomyelois ceratoniae. However, limited studies have been conducted on T. pretiosum olfactory system, which is critical in regulating insect behaviours. In this study, T. pretiosum adult antennae were investigated under ascanning electron microscopy (SEM). Four types of olfactory sensilla were observed, including chaetica sensilla (CS), trichoid sensilla (TS), faleate sensilla (FS) and placoid sensilla (PS). Using T. pretiosum genome, 22 putative odorant binding proteins (OBPs) and 105 odorant receptors (ORs) were identified, which were further compared with olfactory genes of Apis mellifera, Nasonia vitripennis and Diachasma alloeum. The expression patterns of OBPs between T. pretiosum male and female adults were examined by quantitative real time PCR (qRT-PCR) approaches. Three female-specific OBPs (TpreOBP19, TpreOBP15 and TpreOBP3) were identified, which may play crucial roles in T. pretiosum host-seeking and oviposition behaviours. This study enriches our knowledge of T. pretiosum olfactory genes and improves our understanding of its olfactory system.
Details
- Title
- Olfactory sensilla and olfactory genes in the parasitoid wasp Trichogramma pretiosum Riley (Hymenoptera: Trichogrammatidae)
- Authors/Creators
- B.H. Al-Jalely (Author/Creator) - University of BaghdadW. Xu (Author/Creator) - Murdoch University
- Publication Details
- Insects, Vol.12(11), Article 998
- Publisher
- MDPI
- Identifiers
- 991005542861407891
- Copyright
- © 2021 by the authors
- Murdoch Affiliation
- Food Futures Institute
- Language
- English
- Resource Type
- Journal article
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- Collaboration types
- Domestic collaboration
- International collaboration
- Citation topics
- 3 Agriculture, Environment & Ecology
- 3.220 Smell & Taste Science
- 3.220.701 Olfactory Systems
- Web Of Science research areas
- Entomology
- ESI research areas
- Plant & Animal Science