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XY1Y2, a new sex-chromosome system among caraboid beetles

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Summary

Calathus ascendens (Caraboidea, Pterostichiae, Sphodrini) has 2n=20, XY1Y2: XX. This multiple sexchromosome system seems to be derived from a neo-XY one through an X-autosome fusion.

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References

  1. J. Serrano, Genetica55, 51 (1981)

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  2. J. Serrano, Experientia36, 1042 (1980).

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Authors and Affiliations

  1. Museo Nacional de Ciencias Naturales, Castellana 80, Madrid 6, Spain

    J. Serrano

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  1. J. Serrano
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Additional information

Thanks go to A. Machado for collecting some specimens from Last Lagunets. This work has been supported by a postdoctoral fellowship of the C.S.I.C.

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Serrano, J. XY1Y2, a new sex-chromosome system among caraboid beetles. Experientia 37, 693–694 (1981). https://doi.org/10.1007/BF01967927

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  • DOI: https://doi.org/10.1007/BF01967927

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