View PDF Version - RePub - Erasmus Universiteit Rotterdam
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SHORT COMMUNICATION<br />
Isolation and Characterization of 25 Unique DNA Markers<br />
for Human Chromosome 22<br />
NICK A. VAN BIEZEN, '" RONALD H, LEKANNE DEPREZ," ABEL THIJS, '" PETER HEUTINK, t BEN A. OaSTRA, t<br />
AD H. M, GEURTS VAN KessEl,:f: AND EllEN C. ZWARTHOFF*,l<br />
'Department of Pathology, <strong>Erasmus</strong> University, <strong>Rotterdam</strong>; tDepartment of Clinical Genetics, <strong>Rotterdam</strong>;<br />
and tDepartment of Human Genetics, University of Nij'megen, Nijmegen, The Netherlands<br />
Twenty-five single-copy anonymous DNA markers<br />
for human chromosome 22 were Isolated. These<br />
markers wore assigned to four different regions on the<br />
chromosome. Sb; markers recognize restriction fragment<br />
length polymorphlsms. The relative positions of<br />
five of these polymorphic markers on the Cramework<br />
map of chromosome 22 were determined by linkage<br />
analysis. The sizes of the Noll fragments recognized by<br />
22 markers were determined by pulsed-field gel analysIs.<br />
The total length of the Noll fragmentsldentlfled is<br />
at least 12 Mh, which represents about 20% of the en<br />
Ure chromosome. t> 1993 A