Comparative genome mapping with mobile physical map landmarks.
We describe a method for comparative macrorestriction mapping of the chromosomes of Escherichia coli strains. In this method, a series of physically tagged E. coli K-12 alleles serve as mobile landmarks for mapping DNAs from other strains. This technique revealed evidence of strain-specific chromosomal additions or deletions in a pathogenic isolate and can be applied to most strains, yielding information on genealogy as well as virulence. In theory, the same strategy can be used to map and compare genomic DNAs from a wide variety of species.
Department of Pediatrics, School of Medicine, University of Michigan, Ann Arbor 48109.
C A
CA
Bloch
C K
CK
Rode
V
V
Obreque
K Y
KY
Russell
D004251:DNA Transposable Elements; D004269:DNA, Bacterial / Q000235:genetics / Q000378:metabolism; D015252:Deoxyribonucleases, Type II Site-Specific / Q000378:metabolism; D004926:Escherichia coli / Q000235:genetics* / Q000472:pathogenicity; D005819:Genetic Markers; D016680:Genome, Bacterial; D015183:Restriction Mapping; D017384:Sequence Deletion; D012689:Sequence Homology, Nucleic Acid; D014774:Virulence / Q000235:genetics
D004251:DNA Transposable Elements; D004269:DNA, Bacterial; D005819:Genetic Markers; D015252:Deoxyribonucleases, Type II Site-Specific; C038565:GCGGCCGC-specific type II deoxyribonucleases