title: An inverted repeat borders a fivefold amplification in satellite DNA.
abstract: One variant of a complex satellite DNA of the Bermuda land crab is significantly longer than the average repeat unit of the satellite. The extra DNA in the variant is accounted for by a fivefold tandem amplification of a 0.142-kilobase sequence. The amplified sequence is bounded by a tetranucleotide inverted repeat; the upstream arm of the inverted repeat is missing from two other variants of the satellite. The latter variants contain only one copy of a sequence that is closely related to the amplified sequence. By contrast, in several satellite DNA's of other organisms, extra DNA is inserted.
mesh_terms: D000818:Animals; D001483:Base Sequence; D003386:Brachyura / Q000235:genetics; D007446:Chromosome Inversion; D004276:DNA, Satellite / Q000235:genetics*; D005784:Gene Amplification; D009690:Nucleic Acid Conformation
chemical_list: D004276:DNA, Satellite