W (A or T) sequences as probes and primers suitable for genomic mapping and fingerprinting.

AUTOR(ES)

Drmanac, R

RESUMO

A limitation to the use of oligonucleotide probes as tools for genetic and physical mapping has been the low hybridization positive frequency obtained by oligonucleotides of sufficient length to hybridize preferentially to cloned insert DNA (and not host E. coli genomic DNA). Both computer and experimental results now indicate that oligonucleotide probes composed of W (A or T) sequence are preferentially found in eukaryotic DNA, and can be used to provide high frequency, discriminative hybridization. Such W sequences may be useful as either probes or PCR primers in molecular diagnostic applications as well as in genetic and physical mapping.

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