Tandemly Repeated and Satellite DNA
We have projects on tandemly repeated DNA evolution in animal and plant species.
In animals, these projects involve the Drosophila buzzatii cluster (with Gustavo Kuhn), Bovids (Raquel Chaves) and scallops (Assunta Biscotti and Ettore Olmo, publication 248).
Satellite DNAs (satDNAs) are ubiquitous components of the eukaryotic genome, consisting of tandemly repetitive DNA sequences organized in long monotonic arrays of hundreds or thousands of copies usually located in the heterochromatic regions of chromosomes, mainly near the centromere, but sometimes in sub-telomeric regions. Several satDNA families with independent origin are usually found in the genome of the same species or group of species (Ugarkovic and Plohl 2002).
Our research group is very interested in tandemly repeated DNA evolution in Drosophila. We have been working with these sequences in the seven species of the Drosophila buzzatii cluster (Gustavo Kuhn), and are initiating projects to analyse the repetitive, tandemly repeated satellite DNA in the genomes of the 12 sequenced Drosophila genomes (Noncoding DNA of the Assembly, Alignment and Annotation of 12 Drosophila genomes project).
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