(STS) A short (200- to 500-bp) DNA sequence that has a single, unique occurrence in an organism's genome, and whose location and base sequence are known.
Short cDNA sequences of regions that have been physically mapped. STSs provide unique landmarks, or identifiers, throughout the genome. Useful as a framework for further sequencing.
A unique, sequence-defined landmark in the genome that can be detected a specific PCR reaction.