Skip to main content
. 2013 Feb 21;8(2):e57170. doi: 10.1371/journal.pone.0057170

Table 1. Classification of environmental 18S rDNA sequences in 42 taxonomic major groups.

Supergroup Group Distances OTUs
Seq Avg Max Maxc 0.00 0.01 0.05
Opisthokonta Choanoflagellatea C 100 0.13 0.30 0.24 89 56 32
Rhizaria Acantharea C 129 0.15 0.29 0.26 110 63 29
Chlorarachniophyceae C 33 0.14 0.24 0.23 29 13 7
Larcopyle O 18 0.02 0.05 - 13 4 1
Monadofilosa S 81 0.11 0.30 0.22 72 56 33
Nassellaria* O 52 0.18 0.41 0.32 45 29 19
RAD A R 37 0.17 0.29 0.26 34 23 15
RAD B R 88 0.11 0.23 0.16 66 36 17
Spumellaria O 209 0.06 0.26 0.13 154 79 20
Archaeplastida Prasinophyceae C 551 0.09 0.31 0.21 376 130 30
Trebouxiophyceae C 89 0.01 0.12 0.04 26 11 6
Stramenopiles Bacillariophyceae C 253 0.14 0.30 0.29 207 120 57
Bicosoecea C 75 0.11 0.35 0.28 60 34 17
Bolidophyceae C 63 0.05 0.12 0.11 34 12 7
Chrysophyceae C 152 0.13 0.27 0.24 115 75 32
Dictyochophyceae C 91 0.09 0.22 0.16 65 35 16
Eustigmatophyceae C 15 0.01 0.03 - 11 3 1
Labyrinthulida C 29 0.17 0.35 0.34 26 19 17
MAST-1 R 107 0.08 0.20 0.16 74 28 9
MAST-2 R 20 0.01 0.05 - 13 6 2
MAST-3 R 149 0.12 0.27 0.21 110 73 31
MAST-4 R 92 0.03 0.07 0.06 60 24 3
MAST-7 R 82 0.04 0.14 0.08 48 21 6
MAST-8 R 17 0.07 0.13 - 14 9 6
MAST-12 R 26 0.16 0.27 - 24 19 16
Oomyceta C 19 0.11 0.29 - 16 13 10
Pelagophyceae C 34 0.01 0.07 0.02 22 8 2
Pirsonids - 47 0.03 0.09 0.08 37 26 5
CCTH Cryptophyceae C 179 0.09 0.24 0.21 130 45 3
Katablepharids - 20 0.02 0.06 - 12 6 2
Picobiliphyceae R 53 0.07 0.20 0.15 42 24 8
Prymnesiophyceae C 193 0.08 0.30 0.14 148 90 37
Telonemia C 68 0.05 0.12 0.11 60 42 9
Alveolata Ciliophora P 956 0.18 0.42 0.37 788 434 187
Dinophyceae C 1018 0.07 0.50 0.24 848 463 122
MALV-I R 980 0.19 0.48 0.42 779 431 132
MALV-II R 1815 0.16 0.38 0.30 1517 900 353
MALV-III R 79 0.05 0.15 0.11 60 38 9
MALV-V R 51 0.02 0.07 0.04 41 19 3
Excavata Diplonemea C 58 0.11 0.21 0.21 56 51 27
Kinetoplastea C 40 0.23 0.39 0.37 31 22 15
Incertae sedis Apusomonadidae C 14 0.15 0.41 - 9 6 4

Each group is coded according to their taxonomic rank (S: subphylum; C: class; O: order; G: genus; R: ribogroup). The table shows the number of sequences per group (Seq), the average (Avg), maximum (Max) and maximum corrected (Maxc) pair-wise distances, and the number of OTUs at three cut-off levels. *Nassellaria comprises also the order Collodaria.