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Chromosoma. 1997 Dec;106(8):503-12.

Organization of DNA sequences near the centromere of the Drosophila melanogaster Y chromosome.

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  • 1Centro de BiologĂ­a Molecular "Severo Ochoa" (CSIC-UAM), E-28049 Madrid, Spain.

Abstract

The structural analysis of a yeast artificial chromosome clone from Drosophila melanogaster enriched in dodecasatellite sequences has led us to find a new retrotransposon that we have called Circe. Moreover, this retrotransposon has allowed the isolation of a contig encompassing approximately 200 kb near the centromere of the Y chromosome, providing an entry point into a region from which very little sequence information has been obtained to date. The molecular characterization of the contig has shown the presence of HeT-A telomeric retrotransposons close to the centromere of the Y chromosome, suggesting a telocentric origin for this submetacentric chromosome.

PMID:
9426282
[PubMed - indexed for MEDLINE]

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