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. 1965 Jan 8;147(3654):160-2.
doi: 10.1126/science.147.3654.160.

INTERFERENCE BETWEEN "SEX-RATIO" AGENTS OF DROSOPHILA WILLISTONI AND DROSOPHILA NEBULOSA

B SAKAGUCHI, K OISHI, S KOBAYASHI

INTERFERENCE BETWEEN "SEX-RATIO" AGENTS OF DROSOPHILA WILLISTONI AND DROSOPHILA NEBULOSA

B SAKAGUCHI et al. Science. .

Abstract

Interference between two "sex-ratio" agents-that is, treponemalike spirochetes-of different origin, one from Drosophila willistoni and the other from D. nebulosa, was demonstrated by experiments in vivo and in vitro. When the two sex-ratio agents were combined in females of the Oregon-R strain of D. melanogaster, expression of the sex-ratio condition was temporarily interrupted. Several lines of evidence indicate that a substance produced by the sex-ratio agent of D. nebulosa may kill or incapacitate the sex-ratio agent of D. willistoni.

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