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The inheritance of natural chromosomal polymorphisms in the aphid Myzus persicae (Sulzer)

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Abstract

Two types of chromosomal abnormality have been found in natural populations of Myzus persicae in Japan. One type is apparently due to an autosome 3 dissociation, giving a 2n=13 karyotype. The other is interpreted as a translocation between autosomes 1 and 3, resulting in a 2n=12 complement with marked structural heterozygosity. In laboratory crosses, both types of abnormality were inherited through the sexual phase. The proportions of each type in the F1 agreed well with expectations, except that no forms homozygous for the translocation were obtained from crosses between translocation heterozygotes, and no karyotypes with both the translocation and the dissociation were obtained when translocated and dissociated forms were crossed. In the F1 of one cross a triploid clone with the autosomal 1,3 translocation was obtained.

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Authors and Affiliations

  1. department of Entomology, British Museum (Natural History), SW7 5BD, London, UK

    R. L. Blackman

  2. Laboratory of Entomology, Kyôto Prefectural University, Shimogamo, Kyôto, Japan

    H. Takada

Authors
  1. R. L. Blackman
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  2. H. Takada
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Blackman, R.L., Takada, H. The inheritance of natural chromosomal polymorphisms in the aphid Myzus persicae (Sulzer). Genetica 47, 9–15 (1977). https://doi.org/10.1007/BF00122434

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  • DOI: https://doi.org/10.1007/BF00122434

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