Structural organization of the genome of the cellular slime mold Dictyostelium discoideum: interspersion of repetitive and single-copy DNA sequences.
The length and interspersion of reiterated and single-copy DNA sequences in Dictyostelium have been examined. The results indicate that approximately 50-60% of the single-copy sequences in DNA fragments 1500 nucleotides long and 75% of the single-copy sequences in fragments 3000 nucleotides long are linked to short interspersed repeat DNA sequences. The average length of these single-copy sequences is 1500 nucleotides. The length of the reiterated DNA has also been analyzed and shows a bimodal distribution. One half is present in sequences greater than 2000 nucleotides long, while the remainder is present as short fragments 250-450 nucleotides long. These shorter fragments are interspersed with the bulk of the single-copy DNA.
D001483:Base Sequence; D002846:Chromatography, Affinity; D002875:Chromosomes / Q000032:analysis*; D004247:DNA / Q000032:analysis*; D004023:Dictyostelium / Q000032:analysis* / Q000166:cytology; D005796:Genes; D006882:Hydroxyapatites; D007700:Kinetics; D009235:Myxomycetes / Q000032:analysis*; D009693:Nucleic Acid Hybridization; D009695:Nucleic Acid Renaturation; D009711:Nucleotides / Q000032:analysis
D006882:Hydroxyapatites; D009711:Nucleotides; D004247:DNA