Figure 2From: Artificial and natural duplicates in pyrosequencing reads of metagenomic dataRatio of all duplicates and natural duplicates under different hypothetical types for metagenomic samples. X-axis is the name or project identifier of metagenomic samples. For the real metagenomic dataset, the duplicates include both artificial and natural duplicates. For other hypothetical sample types, the duplicates are natural duplicates.Back to article page