The Illumina HiSeq 2000 platform was used to sequence two metagenomes from two Danish biogas plants.. Metagenomic sequencing of two full scale manure co-digesting biogas plants

Anaerobic digestion (AD) is a renewable energy source, and an environmentally friendly process that reduce greenhouse gas emission, improve the digestate as a fertilizer and so on. The biogas is produced by a complex microbial community and knowledge of this community could possibly aid our understanding of the AD processes. Functional information can be obtained by proteomic studies and isotopic labeling. However, a metagenome would greatly improve annotation of identified proteins. Two metagenomes were sequenced from two full scale biogas reactors co-digesting manure, which were used as reference databases for our proteomic study.