• Genetics and cytology ofDrosophila subobscura - IV. An extreme example of delay in gene action, causing sterility

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    • Abstract

       

      An autosomal recessive gene,grandchildless, causes no change in the phenotype of flies homozygous for it. But in the progeny of homozygous females, no matter by what father, all females have rudimentary ovaries, and are sterile, while 98·4% of the males have no testes. The gene has been assigned to a linkage group. Whilst it segregated normally on outcrossing, it was possible to build up a balanced line in which all or almost all individuals were heterozygous or homozygous for it.

    • Author Affiliations

       

      Helen Spurway1

      1. Department of Biometry, University College, London
    • Dates

       
  • Journal of Genetics | News

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