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Tandemly repeated satellite DNAs represent a large fraction of noncoding DNA located in heterochromatin and the centromere region of a chromosome. Due to its rapid evolution, satellite DNA is proposed to be responsible for speciation. Transcripts of satellite DNAs are suggested to play an active role in multiple regulatory layers from chromatin modulation, transcription, RNA maturation to translation. Đurđica studies the role of satellite DNA transcripts in the centromere and heterochromatin establishment, as well as in regulation of gene expression.