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. 1971 Dec;68(12):3145-9.
doi: 10.1073/pnas.68.12.3145.

Is Drosophila dAT on the Y chromosome?

M Blumenfled, H S Forrest

Is Drosophila dAT on the Y chromosome?

M Blumenfled et al. Proc Natl Acad Sci U S A. 1971 Dec.

Abstract

DNA isolated from Drosophila melanogaster embryos contains measurable amounts of dAT, the copolymer of deoxyadenylate and deoxythymidylate. In wild-type (XX,XY) embryos, dAT constitutes 4% of the total DNA. In embryos containing extra Y chromosomes, or even extra portions of Y chromosomes, dAT constitutes as much as 7% of the total. The enrichment for dAT is dependent upon the number of extra short arms of the Y chromosome (Y(S)) or long arms (Y(L)) of the Y chromosome per individual. This enrichment of dAT dependent on the Y chromosome may be interpreted in several ways. The most straightforward interpretation is that dAT is present in high concentrations on the Y chromosome.

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References

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