Population genomics of the invasive Northern Giant Hornet Vespa mandarinia in North America and across its native range
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View abstract on PubMed
Summary
This summary is machine-generated.The northern giant hornet (Vespa mandarinia) genome reveals likely origins in Japan and South Korea for North American introductions. Despite inbreeding, this invasive species may persist, underscoring the need for continued monitoring and eradication efforts.
Area Of Science
- Entomology
- Invasive Species Biology
- Population Genomics
Background
- The northern giant hornet (Vespa mandarinia) is an invasive predator of honey bees, with exotic populations detected in North America.
- Previous genomic studies were limited to mitochondrial DNA, hindering a comprehensive understanding of population structure.
- Understanding the genetic diversity and origins of invasive species is crucial for effective management.
Purpose Of The Study
- To conduct the first whole-genome population variation survey of Vespa mandarinia across its native and introduced ranges.
- To identify the geographic origins of North American introductions.
- To assess inbreeding levels in both native and invasive populations.
Main Methods
- Whole-genome sequencing of Vespa mandarinia individuals from native Asian ranges and North American invasive populations.
- Population genomic analyses to infer genetic structure, origins, and inbreeding.
- Comparative analysis of genomic data between native and introduced populations.
Main Results
- Confirmed likely origins of North American introductions from Japan and South Korea.
- Identified significantly elevated inbreeding in the introduced North American population.
- Observed similar inbreeding signatures in some long-established native populations, suggesting inbreeding depression may not limit persistence.
Conclusions
- The genetic data provides a foundation for future research on invasive hornet populations.
- Inbreeding alone may not be sufficient to prevent the establishment and spread of Vespa mandarinia.
- Ongoing monitoring and eradication efforts are critical to manage this invasive species effectively.
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