Genetic Diversity in Two Mosquito Species from Guadalcanal
Author Information
Author(s): Hasan Arif U, Suguri Setsuo, Fujimoto Chigusa, Itaki Rodney L, Harada Masakazu, Kawabata Masato, Bugoro Hugo, Albino Bobogare
Primary Institution: Department of International Medical Zoology, Faculty of Medicine, Kagawa University
Hypothesis
Is An. irenicus largely or completely sympatric with An. farauti s.s. on Guadalcanal?
Conclusion
An. irenicus and An. farauti s.s. are monophyletic sister species living in sympatry, with recent population expansions on Guadalcanal.
Supporting Evidence
- An. farauti s.s. was collected mostly from brackish water, while An. irenicus was found only in fresh water.
- There is significant population genetic structure between An. irenicus and An. farauti s.s.
- An. irenicus diverged from An. farauti s.s. approximately 29,000 years ago.
Takeaway
Scientists studied two types of mosquitoes on Guadalcanal and found they live together and have recently increased in number.
Methodology
Mitochondrial COII and nuclear ITS2 sequences were analyzed from mosquito samples collected from Guadalcanal and Malaita.
Limitations
The study may not account for all genetic variations due to limited sampling sites.
Statistical Information
P-Value
P < 0.01
Confidence Interval
95% CI: 4,700 BP – 27,000 BP
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
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