主催: The Japan Society of Medical Entomology and Zoology
Anopheles farauti senso stricto (An. farauti s.s.) and Anopheles irenicus mosquitoes are members of the Anopheles punctulatus group. To infer the phylogeography, we have analyzed mitochondrial cytochrome oxidase subunit II (COII) gene in these two species from Guadalcanal and Malaita in the Solomon Islands. An. farauti s.s. was collected mostly from brackish water and by a human bait method on both islands, whereas An. irenicus was only collected from fresh water bodies on Guadalcanal Island. An. irenicus is distributed evenly and its range overlaps with An. farauti s.s. in three of the seven sampling sites. There were absence of shared haplotypes between the species, fixed site differences (five nucleotides), and significant population genetic structure (PhiCT = 0.863, P < 0.01; PhiST = 0.865, P < 0.01 and FST = 0.878, P < 0.01). This work was collaborated with Dr. Masato Kawabata (International Center for Medical Research, Kobe University), Mr. Hugo Bugoro and Mr. Bobogare Albino (Solomon Island Medical Training and Research Institute, Solomon Islands)
