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What are Simple Sequence Repeats (SSRs)?

April 26, 2017repeats sequence simple ssrs

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What are Simple Sequence Repeats (SSRs)?

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SSRs are tandem arrays of simple sequence repeats (mono, di, tri, tetra or penta- nucleotide motifs) commonly found in the DNA of eukaryotic organisms. SSRs represent a rapidly evolving (highly mutable) fraction of eukaryotic genomes. They are useful as genetic markers because differences in the length of the array (number of repeated motifs) can be easily assayed via PCR to identify genetic similarities and differences between individuals at specific loci.

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SSRs are tandem arrays of simple sequence repeats (mono, di, tri, tetra or penta- nucleotide motifs) in the DNA of eucharyotic organisms. SSRs represent a rapidly evolving (highly mutable) fraction of eucharyotic genomes. They are useful as genetic markers because differences in the length of the array (number of repeated motifs) can be easily assayed via PCR to identify genetic similarities and differences between individuals at specific loci.