Genomic DNA for WGS was isolated using standard techniques. Genome sequencing and analysis of SNPs were carried out by Life Sequencing S.L. (www.lifesequencing.com) (Illumina HiSeq. 100PE, 50–100x, MAD4650) or Otogenetics corporation (www.otogenetics.com) [Illumina HiSeq. 2500, PE 100–125, 100x, MAD4738(AR), MAD4747 (ER), MAD4751 (FR) and MAD2 (wt)]. To pick candidate SNPs to cause resistance in each strain, we selected all missense, frameshift or 5′UTR mutations that were not present in the genomes of the strains with resistance mutations that were classified to different linkage groups. We visualized WGS data with the Integrative Genomics Viewer70 (link),71 (link).
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