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Science 6 May 1960:
Vol. 131. no. 3410, pp. 1381 - 1382
DOI: 10.1126/science.131.3410.1381
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Articles

A Genetic Constitution Frustrating the Sexual Drive in Drosophila paulistorum

Lee Ehrnman 1

1 Department of Zoology, Columbia University, New York

Hybrids obtained in the laboratory between two subspecies of Drosophila paulistorum possess a genetic constitution which is discordant enough so that the hybrid females repel the courtship of all males, and will mate with none. The hybrid males will court and will be rejected by almost all females, including their own hybrid siblings.

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Science. ISSN 0036-8075 (print), 1095-9203 (online)