Extrachromosomal Circular DNA of Tandemly Repeated Genomic Sequences in Drosophila

Table 1.

Chromosomal Tandem Repeats in eccDNA of Drosophila


Name of repeat

Locationa

Unit lengthb

Copiesc / cluster size

Reference
Coding
5S rDNA Chr. 2 375 bp 165 copies Ashburner 1989
28S and 18S rDNA & spacer Chr. X 10-20 kb 200-250 copies Tartof 1973
Stellate Chr. X 1.15; 1.25 kb 20-200 copies Livak 1984
Suppressor of Stellate Chr. Y 2.5; 2.8 kb 80 copies Livak, 1984
Histone genesd Chr. 2 5 kbd 110-160 copies Lifton, 1978
Noncoding
1.688 satellite Chr. X 359 bp 11 Mb Demburg 1996
1.672 satellite Chr. X 5 bp 3.5 Mb Demburg 1996
Dodeca satellite
Chr. 3
11/12 bp
1 Mb
Abad 1992
  • a The chromosome location where the repeats reside.

  • b The length of the repeating unit.

  • c Copy number per haploid genome.

  • d Refers to the whole cluster of H1, H2A, H2B, H3, and H4.

This Article

  1. Genome Res. 13: 1133-1145

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