Genetic Structure of Anopheles (Nyssorhynchus) marajoara (Diptera: Culicidae) in Colombia
WALTER REED ARMY INST OF RESEARCH SILVER SPRING MD DEPT OF ENTOMOLOGY
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Five Anopheles marajoara Galvao and Damasceno populations, representing diverse ecological conditions were sampled throughout Colombia and analyzed using nine hypervariable DNA microsatellite loci. The overall genetic diversity H 0.58 was lower than that determined for some Brazilian populations using the same markers. The Caqueta population Colombia had the lowest gene diversity H 0.48, and it was the only population at Hardy-Weinberg equilibrium. Hardy-Weinberg disequilibrium in the remaining four populations was probably caused by the Wahlund effect. The assignment analyses showed two incompletely isolated gene pools separated by the Eastern Andean cordillera. However, other possible geographical barriers rivers and other mountains did not play any role in the moderate genetic heterogeneity found among these populations FST 0.069. These results are noteworthy, because this species is a putative malaria vector in Colombia.