Supplemental material

Files in this Data Supplement:

• Supplemental file 1 - Descriptions of Files S1 to S4.
  PDF document, 39K.
• Supplemental file 2 - Taxonomic classification of environmental database sequences identified by miniprimers and long primers (File S1).
  PDF document, 35K.
• Supplemental file 3 - Soil sequence mismatches to universal primers and divergence within conserved regions (File S2).
  PDF document, 360K.
• Supplemental file 4 - Novel sequence clusters (File S3).
  PDF document, 32K.
• Supplemental file 5 - Rarefaction analysis and nonparametric diversity estimator calculations (File S4).
  PDF document, 1.2MB.