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A new interpretation of the sex determining mechanism of the European earwig,Forficula auricularia

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Osservazioni su femmine diForficula auricularia L. indicano che esse possiedono un solo cariotipo formato da 22 autosomi e da 2 cromosomiX. Sulla base di questo studio, suggeriamo che i maschi con 3 cromosomi sessuali sono del tipoXYY, e nonXXY come precedentemente ritenuto da varii autori. Ci sono maschiXY 1t, XY2, XY2Y2 e mosaiciXY 2/XY2Y2 nella popolazione. Inoltre viene dimostrato che solamente il più grande dei due cromosomi Y, che caratterizzano questa specie, viene accumulato nei maschi con un meccanismo multiple di cromosomi sessuali.

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Authors and Affiliations

  1. Genetics Department, University of Melbourne, 3052, Parkville, Victoria, Australia

    G. C. Webb & M. J. D. White

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  1. G. C. Webb
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  2. M. J. D. White
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Supported by a postgraduate award from the Commonwealth of Australia to G.C.W. and by Public Health Service Grant No. GM-07212 from the Division of General Medical Sciences, U.S. National Institutes of Health and by a grant from the Australian Research Grants Committee.

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Webb, G.C., White, M.J.D. A new interpretation of the sex determining mechanism of the European earwig,Forficula auricularia. Experientia 26, 1387–1389 (1970). https://doi.org/10.1007/BF02113049

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  • DOI: https://doi.org/10.1007/BF02113049

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