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Going global - genomic insights into insect invasions
Wee Tek Tay1, Karl Heinrich Julius Gordon1
1CSIRO Black Mountain Laboratories, Clunies Ross Street, ACT 2601, Australia.
Current Opinion in Insect Science
|May 22, 2019
Summary
Global trade drives invasive insect pests like Helicoverpa, Spodoptera, and Bemisia, threatening agriculture. Genomic tools help monitor and manage these significant economic threats and biosecurity risks.
Area of Science:
- Agricultural Entomology
- Genomics
- Biosecurity
Background:
- Invasive insect pests pose a growing global agricultural challenge.
- Species like Helicoverpa, Spodoptera, and Bemisia have expanded their range, causing significant economic damage and disease transmission.
Purpose of the Study:
- To review the impact of invasive insect pests on global agriculture.
- To highlight the application of new genomic resources in understanding and managing these pests.
- To emphasize the role of global trade in pest spread and the need for enhanced biosecurity.
Main Methods:
- Utilizing recently available genomic resources for key invasive species.
- Employing genome-wide genotyping and resequencing protocols.
- Analyzing hybridization, selection pressures, and gene introgression.
Main Results:
- Genomic studies reveal hybridization within pest complexes.
- Identified genomic regions under selection in agricultural settings.
- Demonstrated the potential to monitor genes of biosecurity concern.
Conclusions:
- Global trade is a primary driver of invasive insect pest spread.
- Genomic tools are crucial for effective pest management and biosecurity.
- Collaboration between researchers and biosecurity agencies is essential.
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