Letter | Published:

Natural Breeding Sites of Drosophila obscuro

Nature volume 149, pages 499500 (02 May 1942) | Download Citation

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Abstract

MOST of the studies on the genetic structure of wild populations of Drosophila have been on animals trapped by means of a yeasted banana-agar or similar fruit traps1,2,3. The flies may thus have been drawn from a large number of small discrete breeding units, and hence general inferences are difficult. I have found a very marked deficiency in the number of males trapped in D. subobscura Collin and to a lesser extent in D. obscura, although the sex-ratio in cultures approximates unity, thus demonstrating the inadequacy of collections by means of baited traps.

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References

  1. 1.

    , Proc. 7th Int. Cong. Gen. (1939).

  2. 2.

    , and co-workers, Biol. Zh., 6 (1936).

  3. 3.

    , and , J. Genet., 38 (1939).

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Affiliations

  1. Natural History Department. Marischal College, Aberdeen. April 17.

    • CECIL GORDON

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DOI

https://doi.org/10.1038/149499b0

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