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Mol Cell Biol. 1986 November; 6(11): 3826-3830

Microdissection of and microcloning from the short arm of human chromosome 2.

ABSTRACT

A bank of cloned DNA sequences from the distal half of the short arm of human chromosome 2 was generated by using microdissection and microcloning techniques. DNA was purified from 106 chromosomal fragments, manually dissected from peripheral lymphocytes in metaphase, and cloned into the EcoRI site of lambda gt10. A total of 257 putative recombinants were recovered, of which 41% were found to contain human inserts. The mean insert size was 380 base pairs (median size, 83 base pairs), and fewer than 10% of the clones contained highly repetitive sequences. All single-copy sequences examined were shown to map to the short arm of chromosome 2 by using hybrid panels. This technique provides a rapid method of isolating probes specific to a human subchromosomal region to generate linked markers to genetic diseases for which the chromosomal location is known.