Genomic DNA was extracted from pools of ten individuals using the REPLI-g Single Cell Kit (Qiagen, Hilden, Germany). DNA concentration was quantified using a Qubit fluorometer (Invitrogen, Carlsbad, CA, USA). Sequencing libraries were prepared using the TruSeq DNA Sample Prep Kit (Illumina Inc., CA, USA) following manufacturer's protocols. Sequencings were performed on Illumina NovaSeq PE150 platform.