Population genetic and admixture analyses of Culex pipiens complex (Diptera: Culicidae) populations in California, United States

Linda Kothera, Brittany M. Nelms, William Reisen, Harry M. Savage

Research output: Contribution to journalArticle

21 Scopus citations

Abstract

Microsatellite markers were used to genetically characterize 19 Culex pipiens complex populations from California. Two populations showed characteristics of earlier genetic bottlenecks. The overall FST value and a neighbor-joining tree suggested moderate amounts of genetic differentiation. Analyses using Structure indicated K = 4 genetic clusters: Cx. pipiens form pipiens L., Cx. quinquefasciatus Say, Cx. pipiens form molestus Forskäl, and a group of genetically similar individuals of hybrid origin. A Discriminant Analysis of Principal Components indicated that the latter group is a mixture of the other three taxa, with form pipiens and form molestus contributing somewhat more ancestry than Cx. quinquefasciatus. Characterization of 56 morphologically autogenous individuals classified most as Cx. pipiens form molestus, and none as Cx. pipiens form pipiens or Cx. quinquefasciatus. Comparison of California microsatellite data with those of Cx. pipiens pallens Coquillett from Japan indicated the latter does not contribute significantly to genotypes in California.

Original languageEnglish (US)
Pages (from-to)1154-1167
Number of pages14
JournalAmerican Journal of Tropical Medicine and Hygiene
Volume89
Issue number6
DOIs
StatePublished - Dec 1 2013

ASJC Scopus subject areas

  • Parasitology
  • Infectious Diseases
  • Virology

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