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. 2018 Oct 29;47(Database issue):D175–D180. doi: 10.1093/nar/gky1043

Table 1.

The comparison of piRBase and other piRNA databases

piRBase
Species piRNABank piRNAQuest IsopiRBankc Release v1.0 Release v2.0
Human 35 356 41 749 4 564 080 32 826 8 438 265
Mouse 55 359 890 078 38 093 003 51 664 769 68 054 594
Rat 46 444 66 758 63 182 4 081 625
D. melanogaster 44 417a 15 058 093 21 027 419 41 950 613
C. elegans 28 219 28 219
Zebrafish 6 367 811 1 330 692 1 330 692
Chicken 508 437 1 716 795
X. tropicalis 6 142 904 6 142 904
Silkworm 1 174 963 1 253 987
Starlet sea anemone 11 811
Cow 19 528 252
Crab-eating macaque 5 819 946
Rhesus 6 514
Marmoset 8 311 210
Sea hare 499
Tree shrew 65 810
Pig 1 301 866
D.erecta 1 091 318
D.yakuba 1 069 918
D.virilis 907 289
Rabbit 2 816 864
Platypus 51b

aThe number of unique piRNAs may be less than shown.

bThe number of unique piRNAs comes from statistic of download file.

cThe number of canonical piRNAs is shown.