of Escherichia coli 0157:H7 that has lost both Shiga toxin 1 and 2 genes.
The change in the cost of plasmid carriage, [Delta]c, was measured by competition between a strain carrying the ancestral plasmid and an isogenic strain
with an evolutionarily derived plasmid.
Novel functions of (p)ppGpp and cyclic di-GMP in mycobacterial physiology revealed by phenotype microarray analysis of wild-type and isogenic strains
of Mycobacterium smegmatis.
In this study we determined if ginseng directly affected the bacterial expression of virulence factors using a set of appropriate isogenic strains
containing a well-characterized mutation.
To test for amber mutants, four isogenic strains
In vivo transfer of the satA gene between isogenic strains
of Enterococcus faecium in the mammalian gastrointestinal tract.
Two inversions (B and C) could be made isogenic from vials with parental genotypes AB x AC or AA x BC (each capital letter stands for a different chromosome arrangement), whereas isogenic strains
for any of the four inversions could be obtained from vials with parental genotypes AB x CD.
The use of isogenic strains
also eliminates the importance of recombination between competing strains during the experiment.