title: Shotgun sequencing: extraction blank
design: DNA was extracted from sample using QIAGEN DNeasy PowerSoil Kit and purified using the OneStepTM PCR Inhibitor Removal Kit. Purified DNA was fragmented to 200 bp on the Covaris Focused-Ultrasonicator. Libraries were prepared using the NEBNext UltraTM II DNA Library Prep Kit for Illumina.