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  • Title: Phylogeny of fourteen Culex mosquito species, including the Culex pipiens complex, inferred from the internal transcribed spacers of ribosomal DNA.
    Author: Miller BR, Crabtree MB, Savage HM.
    Journal: Insect Mol Biol; 1996 May; 5(2):93-107. PubMed ID: 8673266.
    Abstract:
    Ribosomal DNA sequence divergence in the internal transcribed spacer regions (ITS-1 and ITS-2) was examined for fourteen species and four subgenera (sixty-two clones) in the mosquito genus Culex (Diptera: Culicidae). A neighbour-joining tree produced with Kimura 2-parameter distances showed that each of the four subgenera was monophyletic at confidence probabilities of 70-99%. Culex (Lutzia) formed the sister group of Cx. (Culex). Two major clades, a Cx. pipiens complex-Cx. torrentium assemblage and a Cx. restuans-Cx. salinarius-Cx. erythrothorax assemblage, formed monophyletic groups. Cx. torrentium was closely related to members of the Cx. pipiens complex. Phylogenetic analysis of ITS-1 and ITS-2 sequences from members of the Cx. pipiens complex separated populations from northern latitudes and southern latitudes, but did not support the traditional taxa as monophyletic units.
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