Parallel-META 3.4.2 Released

Parallel-META is a comprehensive and full-automatic computational toolkit for rapid data mining among metagenomic datasets. Both metagenomic shotgun sequences and 16S/18S rRNA amplicon sequences are accepted. Based on parallel algorithms and optimizations, Parallel-META 3 can achieve a very high speed compare to traditional microbiome analysis pipelines. Now the Parallel-META 3 version 3.4.2 is available at

The following functions have been updated in the new version of Parallel-META 3.

1. Updated the “classification.txt” format to significantly improve the I/O efficiency when the sequencing depth is very large;

2. The 3.4.2 is compatible with both the new format and the old format of “classification.txt”;

3.  The 3.4.1 or lower is not compatible with the new format of “classification.txt”;

4.  Enabled the “PM-update-taxa” to convert the old format of “classification.txt” to the new format, which can improve the I/O efficiency;

5.  Added the un-weighted Meta-Storms distance in “PM-pipeline” and “PM-comp-sam” that ignoring the relative abundance of OTUs.

Thus, we strongly recommend all users to update their Parallel-META 3 to 3.4.2 version.

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