ISSN:
1573-4978
Keywords:
PFGE (pulsed field gel electrophoresis)
;
repetitive DNA
;
chromosomal sequences
;
mapping
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
Notes:
Abstract We have employed a pulsed field gel electrophoresis and Alu hybridization approach for identification of large restriction fragments on chromosome 6 and 22. This technique allows large portions of selected human chromosomes to be visualized as discrete hybridization signals. Somatic cell hybrid DNA which contains chromosome 6 or chromosome 22 was restricted with either Notl or Mlul. The restriction fragments were separated by pulsed field gel electrophoresis (PFGE) and hybridized against an Alu repetitive sequence (Blur 8). The hybridization signals result in a fingerprint-like pattern which is unique for each chromosome and each restriction enzyme. In addition, a continuous pattern of restriction fragments was demonstrated by gradually increasing puls times. This approach will also be suitable to analyze aberrant human chromosomes retained in somatic cell hybrids and can be used to analyze flow sorted human chromosomes. To this end, our method provides a valuable alternative to standard cytogenetic analysis.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00986496
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