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Progeny: Sperm ratios and segregation-distorter inDrosophila melanogaster

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Abstract

Progeny: sperm ratios (P/S) were determined from crosses ofSD/cn bw males ofDrosophila melanogaster with females of eight different genotypes. Thek value was about 1.0. P/S ratios of 0.88, 0.81, and 0.76, respectively, were observed from crosses with females of three genotypes, and ratios in the 0.3–0.4 range from five. These results support the suggestion ofZimmering & Fowler (1968) that P/S ratios may vary widely and depend at least in part on the genotype of the female. Morcover, since P/S ratios of 0.9 may be observed whenk is about 1.0, it follows that the vast majority of sperm stored in these females areSD.

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References

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Author notes

  1. G. L. Fowler

    Present address: Department of Biology, University of Oregon, 97403, Eugene, Oregon, USA

Authors and Affiliations

  1. Division of Biological and Medical Sciences, Brown University, 02912, Providence, Rhode Island, USA

    S. Zimmering, J. M. Barnabo, J. Femino & G. L. Fowler

  2. Department of Biological Sciences, George Washington University, 20006, Washington, D.C., USA

    S. Zimmering, J. M. Barnabo, J. Femino & G. L. Fowler

Authors
  1. S. Zimmering
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  2. J. M. Barnabo
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  3. J. Femino
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  4. G. L. Fowler
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Additional information

Supported by NSF grant GB 8565.

NSF Undergraduate Research Participant.

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Zimmering, S., Barnabo, J.M., Femino, J. et al. Progeny: Sperm ratios and segregation-distorter inDrosophila melanogaster . Genetica 41, 61–64 (1970). https://doi.org/10.1007/BF00958894

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  • DOI: https://doi.org/10.1007/BF00958894

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