Supporting data for "MBGC: Multiple Bacteria Genome Compressor"

Genomes within the same species reveal large similarity, exploited by specialized multiple genome compressors. The existing algorithms and tools are however targeted at large, e.g., mammalian, genomes, and their performance on bacteria strains is rather moderate. <br>In this work, we propose MBGC, a specialized genome compressor making use of specific redundancy of bacterial genomes. Its characteristic features are finding both direct and reverse-complemented LZ-matches, as well as a careful management of a reference buffer in a multi-threaded implementation. Our tool is not only compression efficient, but also fast. On a collection of 168,311 bacterial genomes, totalling 587GB, we achieve the compression ratio around the factor of 1265, and the compression (resp. decompression) speed around 1580MB/s (resp. 780MB/s) using 8 hardware threads, on a computer with a 14-core / 28-thread CPU and a fast SSD, being almost 3 times more succinct and over 6 times faster in the compression than the next best competitor.