Assertion: centromere's sequence | /r/HasProperty | cigs
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Source sentences:
text: BAC end sequencing and fingerprinting data of the stronger clones were used to construct contigs and five clones were chosen for complete sequencing: CH221-29J09 (containing rDNA intergenic spacer (IGS) related sequences, cIGS), CH211-27P10 (containing Akap200 related sequences) and BACR19P07, BACR16A01 and BACR12I02 that were also positive for the retrotransposon Circe.