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. 1994 Sep;138(1):145–152. doi: 10.1093/genetics/138.1.145

X-Linked Elements Associated with Negative Segregation Distortion in the Sd System of Drosophila Melanogaster

Y Hiraizumi 1, J M Albracht 1, B C Albracht 1
PMCID: PMC1206126  PMID: 8001782

Abstract

Three elements, M(1), M(2) and M(3), found in a special X chromosome, supp-X(SD), modify the degree and direction of segregation distortion in the SD system of Drosophila melanogaster. The first element, M(1), is located between the y and the cv loci, probably close to the y locus. The second element, M(2), is located near the cv locus and the third element, M(3), is located between the y and the car loci. The M(1) element appears to cause a relatively small amount of reduction in the rate of recovery of the SD-72, but not the cn bw, chromosome from SD-72/ cn bw males, when raised at 27.5°. The M(2) and the M(3) elements cause considerable decrease in the recovery rate of the SD-72 chromosome, whereas they increase the recovery rate of the cn bw chromosome. The amount of decrease is nearly the same as the amount of increase for each element. Some type of ``switch'' mechanism in the directions of distortion is suggested for each of these two elements and their effects appear to be approximately additive.

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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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