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Irregularities in the early development of the Drosophila Melanogaster egg

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Summary

Polyspermy is normally present in the Drosophila egg.

Extreme polyspermy may lead to disturbances which may prevent the egg from further development.

Polar body formation may be disorganized by supernumerary sperms.

Supernumerary sperms may form unipolar, bipolar and multipolar spindles.

In rarer cases sperms will enter into normal spindles and form multipolar spindles. In some cases such interference seems to adjust itself to the original bipolar condition and division figures with the polyploid number of chromosomes will result. Either by the conjugation of two sperms, or by dimegaly, or by the doubling of chromosomes of a single sperm, supernumerary nuclei may develop. The origin of certain mosaics and gynandromorphs may be explained on this basis.

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Literature cited

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Authors and Affiliations

  1. Zoological Laboratory, Columbia University, New York

    Alfred F. Huettner

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  1. Alfred F. Huettner
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Huettner, A.F. Irregularities in the early development of the Drosophila Melanogaster egg. Z.Zellforsch 4, 599–610 (1927). https://doi.org/10.1007/BF00637107

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  • DOI: https://doi.org/10.1007/BF00637107

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