PT - JOURNAL ARTICLE AU - Ka-Kit Lam AU - Richard Hall AU - Alicia Clum AU - Satish Rao TI - BIGMAC: Breaking Inaccurate Genomes and Merging Assembled Contigs for long read metagenomic assembly AID - 10.1101/045690 DP - 2016 Jan 01 TA - bioRxiv PG - 045690 4099 - http://biorxiv.org/content/early/2016/03/29/045690.short 4100 - http://biorxiv.org/content/early/2016/03/29/045690.full AB - The problem of de-novo assembly for metagenomes using only long reads is gaining attention. We study whether post-processing metagenomic assemblies with the original input long reads can result in quality improvement. Previous approaches have focused on pre-processing reads and optimizing assemblers. BIGMAC takes an alternative perspective to focus on the post-processing step. Using both the assembled contigs and original long reads as input, BIGMAC first breaks the contigs at potentially mis-assembled locations and subsequently scaffolds contigs. Our experiments on metagenomes assembled from long reads show that BIGMAC can improve assembly quality by reducing the number of mis-assemblies while maintaining/increasing N50 and N75. The software is available at https://github.com/kakitone/BIGMAC