Skip to main page content
U.S. flag

An official website of the United States government

Dot gov

The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.

Https

The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.

Access keys NCBI Homepage MyNCBI Homepage Main Content Main Navigation
. 1987 Jan;84(1):174-8.
doi: 10.1073/pnas.84.1.174.

Asymmetrical pairings of transposons in and proximal to the white locus of Drosophila account for four classes of regularly occurring exchange products

P S Davis, M W Shen, B H Judd

Asymmetrical pairings of transposons in and proximal to the white locus of Drosophila account for four classes of regularly occurring exchange products

P S Davis et al. Proc Natl Acad Sci U S A. 1987 Jan.

Abstract

An explanation for the origins of four classes of regularly occurring duplication and deficiency chromosomes is provided through examination of their molecular structures. The duplications and deficiencies occur as the reciprocal products of crossing-over, following two different patterns of asymmetrical synapsis between transposons positioned in and proximal to the white locus of Drosophila melanogaster. Three copies of the retrovirus-like transposon roo are involved in the exchanges. Evidence suggests that transposon-mediated asymmetrical exchange is a general phenomenon in eukaryotes, which adds significantly to the effects of transposons in the restructuring of eukaryotic genomes.

PubMed Disclaimer

References

    1. Proc Natl Acad Sci U S A. 1982 Jan;79(2):564-8 - PubMed
    1. Cell. 1980 Sep;21(2):575-9 - PubMed
    1. Plasmid. 1985 Jan;13(1):31-40 - PubMed
    1. Nature. 1981 Jul 23;292(5821):306-11 - PubMed
    1. Science. 1986 Apr 11;232(4747):203-10 - PubMed

Substances

LinkOut - more resources