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. 2011 Jun 30;12:271. doi: 10.1186/1471-2105-12-271

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Copyright ©2011 Ghodsi et al; licensee BioMed Central Ltd.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Running times. Plot of running time as a function of cluster radius for various tools and settings, on the twins dataset. The dataset contains 1.1 million pyrosequencing reads from the V2 region of the 16S rRNA gene. The reads have an average length of 231 base pairs. The running times were measured on a single 1.8 GHz processor of an Intel x86-64 Linux laptop with 4 GB RAM. The command line options were: dnaclust infile.fasta -s 0.9x -k 3 [--approximate-filter] > outfile.cluster uclust --input infile-sorted.fasta --uc outfile.cluster --id 0.9x [--exact].

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