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Genetic Variation at Structural Loci in the Glossina morsitans Species Group

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Abstract

Gene diversity was investigated in four taxa of tsetse flies (Diptera: Glossinidae) including Glossina morsitans morsitans, G. m. centralis, G. swynnertoni, and G. pallidipes. Histochemical tests were performed for 35–46 isozymes. Polymorphic loci were 20% in G. morsitans morsitans, 32% in G. m. centralis, 17.6% in G. swynnertoni, and 26% in G. pallidipes. Mean heterozygosities among all loci were 6.6% in G. morsitans morsitans, 6.0% in G. m. centralis, 7.1% in G. swynnertoni, and 6.8% in G. pallidipes. Allozyme gene diversities were considerably less than those reported for many Diptera. The low gene diversities are probably related to small effective population sizes.

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Authors and Affiliations

  1. Department of Entomology, Iowa State University, Ames, Iowa, 50011-3222

    E. S. Krafsur

  2. Department of Biology, Imperial College, Silwood Park, Ascot, Berks, SL5 0BH, U.K

    N. Griffiths

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  1. E. S. Krafsur
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  2. N. Griffiths
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Krafsur, E.S., Griffiths, N. Genetic Variation at Structural Loci in the Glossina morsitans Species Group. Biochem Genet 35, 1–11 (1997). https://doi.org/10.1023/A:1022252311715

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