Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Competition Between High and Low Mutating Strains of Escherichia coli

Lin Chao and Edward C. Cox
Evolution
Vol. 37, No. 1 (Jan., 1983), pp. 125-134
DOI: 10.2307/2408181
Stable URL: http://www.jstor.org/stable/2408181
Page Count: 10
  • Read Online (Free)
  • Download ($4.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Competition Between High and Low Mutating Strains of Escherichia coli
Preview not available

Abstract

Previous studies (Gibson et al., 1970; Nestmann and Hill, 1973, Cox and Gibson, 1974) have shown that strains of E. coli with high mutation rates have a marked advantage in competition with wild-type strains. Those studies, however, failed to discriminate between the hypotheses that the mutator bacteria acquired an advantage by evolving faster, on the one hand, or that they had an intrinsic competitive advantage, on the other Our present investigation supports the first hypothesis. We also present estimates for the mutational load in E. coli mutT strains and the mutation rate to higher fitness mutants in these experiments.

Page Thumbnails

  • Thumbnail: Page 
125
    125
  • Thumbnail: Page 
126
    126
  • Thumbnail: Page 
127
    127
  • Thumbnail: Page 
128
    128
  • Thumbnail: Page 
129
    129
  • Thumbnail: Page 
130
    130
  • Thumbnail: Page 
131
    131
  • Thumbnail: Page 
132
    132
  • Thumbnail: Page 
133
    133
  • Thumbnail: Page 
134
    134