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Polyploidization and production of abnormal spermatids inPsophus stridulus (Orthoptera)

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Summary

Abnormal spermatids exhibiting variation in the number of adjunct centrioles (ACs) (from two to eight) have been analyzed in a spontaneous mutant grasshopper characterized by a high tendency to form polyploid meiocytes. Results show that the observed polyploidization of these cells increases the number of abnormal gametes and, although diploid spermatids (with two ACs) are the most frequent, higher levels of ploidy are also produced. The variation in the number of ACs, the level of ploidy in the sperm and the presence of polyploid meiocytes, are topics briefly discussed.

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References

  1. Special thanks to Carlos García de la Vega for many helpful comments. This work was supported by C.A.I.C.Y.T. 2165/83.

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Authors and Affiliations

  1. Departamento de Genética, C-XV, Facultad de Ciencias, Universidad Autónoma de Madrid, E-28049, Madrid, Spain

    J. L. Bella, C. López-Fernández, J. de la Torre & J. Gosálvez

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  1. J. L. Bella
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  2. C. López-Fernández
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  3. J. de la Torre
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  4. J. Gosálvez
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Bella, J.L., López-Fernández, C., de la Torre, J. et al. Polyploidization and production of abnormal spermatids inPsophus stridulus (Orthoptera). Experientia 41, 756–757 (1985). https://doi.org/10.1007/BF02012582

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  • DOI: https://doi.org/10.1007/BF02012582

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