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. 1990 May;125(1):51–76. doi: 10.1093/genetics/125.1.51

Examination of a Mutable System Affecting the Components of the Segregation Distorter Meiotic Drive System of Drosophila Melanogaster

K G Golic 1
PMCID: PMC1204009  PMID: 2160403

Abstract

Segregation distortion in Drosophila melanogaster is the result of an interaction between the genetic elements Sd, a Rsp sensitive to Sd, and an array of modifiers, that results in the death of sperm carrying Rsp. A stock (designated M-5; cn bw) has been constructed which has the property of inducing the partial loss of sensitivity from previously sensitive cn bw chromosomes, the partial loss of distorting ability from SD chromosomes, and a concomitant acquisition of modifiers on the X chromosome and possibly also on the autosomes. By several criteria the changes exhibited under the influence of M-5; cn bw are characteristic of the transposable-element systems which produce hybrid dysgenesis. In the first place, the magnitude of these effects depends on the nature of the crosses performed. The analogy is further strengthened by the observation that the changes induced by M-5; cn bw share other stigmata of Drosophila transposable-element systems, including high sterility among the progeny of outcrosses, and the production of chromosomal rearrangements. The possible relationship of this system to the P, I and hobo transposable element systems is discussed, as well as its bearing on aspects of the Segregation Distorter phenomenon which have yet to be explained.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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