Table 1. NCBI database sources used for the probe specificity check.

Source	Number of sequences	Database fraction
Bacteria	7 658 345	7.55%
Environmental samples	7 276 975	7.18%
Invertebrates	27 651 271	27.27%
Patented sequences	31 140 928	30.71%
Plants	3 798 824	3.75%
Viruses	1 837 439	1.81%
Archaea	38 310	0.04%
Fungi	3 889 143	3.84%
Protozoa	3 880 518	3.83%
WGS project sequences	14 220 046	14.02%
Total amount of sequences	101 391 799	100.00%

The number of sequences and their share of the entire data pool are listed.