SP21
Soil DNA was extracted using the DNeasy PowerSoil Pro Kit (Qiagen, DK), following the manufacturer's instructions. DNA sequencing was carried out in Novogene Corporation Inc. (Sacramento, CA) facility, using the Nextera XT DNA Library Preparation Kit (Illumina, US) and Illumina NovaSeq 6000 to generate paired-end 2x150-bp reads.