Figure 2.
Distribution of potential cross-species inter-library contamination. The bars indicate the number of libraries (y-axis) contained within bins composed of libraries with contamination frequencies that fall within the ranges shown for each bin (x-axis). Percentages indicate the proportion of sequences within a library that match tag sequences we deduced to be exclusive to other species. This is a sensitive and probably maximal estimate of cross-species contamination. Five percent of the libraries assayed have contamination frequencies of ≥1%. These are the libraries we classified as potentially contaminated (red bars).
