Try: http://www.hgmp.mrc.ac.uk/gdb/gdbtop.html Why not throw this open, ie. which microsatellite's are you interested in? In article <Pine.GSO.3.94.981123171019.23580B-100000 at tin>, David Dai <kdai at hgmp.mrc.ac.uk> wrote: > Dear all, > > Is it possible to find a YAC clone according to known microsatellite > marker? How? Thanks! > > David Dai