text: gions, and accession numbers for datasets
  Dataset
  Gene Region
  Read Type
  Sample Origin
  Data Availability
  Reference
  ITS1-Soil
  ITS1
  2  250 bp
  North American soil
  NCBI SRA SRP035367
  Smith & Peay [36]
  ITS2-Soil
  ITS2
  2  250 bp
  North American soil
  NCBI SRA SRR1508275
  Oliv