GC-TRFLP data for soil and the distributions that provided the best fit to this data.

<p>Goodness-of-fit measurements are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0002910#pone-0002910-t002" target="_blank">Table 2</a>.</p

Comparison of differences in relative peak height between composite TRFs from GC-TRFLP and matching TRFs from TRFLP which shows that variation in peak height between TRFLP and GC-TRFLP increases with increasing peak height.

<p>Comparison is ordered based on peak rank in composite GC-TRFLP.</p

GC-TRFLP and TRFLP electropherograms plotted on offset baselines.

<p>The composite GC-TRFLP was created by collapsing the fraction axis, adding the peak height of identical TRFs across fractions. Peaks are represented as a proportion of total peak height.</p

TRFLP data for soil and the distributions that provided the best fit to this data.

<p>Goodness-of-fit measurements are given in <a href="http://www.plosone.org/article/info:doi/10.1371/journal.pone.0002910#pone-0002910-t003" target="_blank">Table 3</a>.</p

Plot of GC-TRFLP data for a soil sample indicating TRFLP results for CsCl gradient fractions containing DNA of different G+C content.

<p>Peaks are colored based on height to increase contrast between peaks.</p

Evaluation of distributions that were fit to simulated GC-TRFLP of artificial communities when the original distributions of those communities were known.

*<p>Indicates a failure to reject the null hypothesis that the two distributions are the same as determined by the KS test.</p

Evaluation of the fit of different distributions to TRFLP data from the soil community.

*<p>Indicates a failure to reject the null hypothesis that the two distributions are the same as determined by the KS test.</p

Evaluation of the fit of different distributions to GC-TRFLP data from the soil community.

*<p>Indicates a failure to reject the null hypothesis that the two distributions are the same as determined by the KS test.</p

Impact of potential PCR bias on estimates (See table 2).

*<p>Indicates a failure to reject the null hypothesis that the two distributions are the same as determined by the KS test.</p

YcaO containing protein alignment

An alignment of all YcaO containing (D) proteins that were used in the analysis. This alignment was used to generate Figures S3 and S