FIG. 7.

Diversity of phylotypes in the collection of 70 bacterial isolates. A total of 13 phylotypes were detected. After the order of strains was randomized, sequential detection of phylotypes was plotted in a cumulative manner (●). For comparison, a rarefaction curve (solid line) was produced from the data by employing the freeware program Analytical Rarefaction 1.2 (compiled by Steven M. Holland; available at http://www.uga.edu/∼strata/Software.html). The dotted lines indicate 95% confidence intervals.