has output Sequence map Sequence tagged site (STS) mapping beta12orEarlier Generate a physical DNA map (sequence map) from analysis of sequence tagged sites (STS). An STS is a short subsequence of known sequence and location that occurs only once in the chromosome or genome that is being mapped. Sources of STSs include 1. expressed sequence tags (ESTs), simple sequence length polymorphisms (SSLPs), and random genomic sequences from cloned genomic DNA or database sequences. Sequence mapping Physical mapping