Volume 69, Issue 4
  • ISSN: 0002-9637
  • E-ISSN: 1476-1645


A population analysis of peridomestic, light-trapped, field specimens of the phlebotomine sand fly was targeted to six locations representing a geographic transect across eastern Brazil. Mitochondrial cytochrome b gene sequences established the pattern of genetic variation among the populations. Alignment of a 261-basepair region at the 3′end of cytochrome b identified 30 haplotypes and 21 segregating sites from 78 sand flies. Pairwise comparisons indicated statistically significant population structuring between northern and southern populations, as well as structuring among the southern populations. Prominent spatial clustering was evident for two of the populations in a minimum spanning network of the haplotypes, but sequence divergence was not sufficient to indicate cryptic species.


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  • Received : 15 Jan 2003
  • Accepted : 18 Jul 2003

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