Figure 2.

Scatter plot DNA extract purity (A260/A280 nm vs. A260/A230 nm). Only samples with DNA concentrations greater than 17.5 ng/μL were included in the analysis. Graphs are separated by extraction method. Cell types are indicated by the data point shape, color, and rug plot color: B. cereus spores (n = 1 extracts), Red ●, S. cerevisiae (n = 9 extracts), blue ▲, B. cereus vegetative (n = 12 extracts), green ■, B. thailandensis (n = 15 extracts), purple +, and E. coli (n = 11 extracts), yellow ⊠. Dotted lines indicate the upper limits of community accepted purity ratios; light grey areas show the lower limits of community accepted purity ratios

Olson and Morrow BMC Research Notes 2012 5:668   doi:10.1186/1756-0500-5-668
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