Table 1

Summary statistics of the dataset used in this study. MicroRNA genes detected by homology search relative to the contents of the MR 6.0.

Genome
MR 6.0
known
new
all

hsa
227
215+12
23
238
ptr
-
0
183
183
cfa
6
6
195
201
bta
-
0
138
138
mmu
230
215+17
26
241
rno
191
180+6
39
219

mdo
-
0
139
139
gga
122
122
17
139
xla/xtr
(7)
(7)
126
133

tru
-
0
171
171
tni
-
0
179
179
ola
-
0
152
152
dre
33
60
205
265

spu
-
0
40
40
cin
-
0
6
6
csa
-
0
3
3
odi
-
0
5
5

dme
78
78
0
78
dps
73
72
0
72
dya
-
0
74
74
dan
-
0
64
64
dvi
-
0
67
67
dmo
-
0
69
69
aga
38
42
10
52
tca
-
0
24
24
ame
25
26
12
38
bmo
-
0
17
17

cel
116
117
2
119
cbr
79
82
3
85

sma
-
0
4
4

Σ

1222
1993
3215

The set of "known" microRNAs differs in some cases from MR 6.0 because some database entries could not be mapped to the current genome assembly, or mapped to more than one genomic locus. The mir-134 cluster is excluded from this list (its known members are indicated separately for human, mouse and rat in the MR 6.0 column). The last column ("all") provides the statistics for the data set provided in the electronic supplement, the column "new" lists all those pre-miRNA sequences that were detected by homology search and are contained in MR 6.0. For Xenopus 7 microRNAs were reported for Xenopus laevis, a close relative of the sequenced Xenopus tropicalis.

Species abbreviations.

Mammals: hsa, Hs: Homo sapiens; ptr, Pt: Pan troglodytes; cfa, Cf: Canis familiaris; bta, Bt: Bos taurus; mmu, Mm: Mus musculus; rno, Rn: Rattus norvegicus; mdo, Md: Monodelphis domesticus; other tetrapods: gga, Gg: Gallus gallus; xla: Xenopus laevis; xtr, Xt: Xenopus tropicalis; teleost fishes: tru, Tr: Takifugu rubripes; tni, Tn: Tetraodon nigroviridis; dre, Dr: Danio rerio; basal deuterostomes: spu, Sp: Strongylocentrotus purpuratus; cin, Ci: Ciona intestinalis; csa, Cs: Ciona savignyii; odi, Od: Oikopleura dioica; insects: dme, Dm: Drosophila melanogaster, dps, Dp: Drosophila pseudoobscura, dya, Dy: Drosophila yakuba, dan, Da: Drosophila ananassae, dvi, Dv: Drosophila viridis, dmo, Do: Drosophila mohavensis, aga, Ag: Anopheles gambiae, tca, Tc: Tribolium castaneum, ame, Am: Apis mellifera, bmo, Bm: Bombyx mori, nematods: cel, Ce: Caenorhabditis elegans, cbr, Cb: Caenorhabditis briggsae, platyhelmint: sma, Sm: Schistosoma mansoni.

Hertel et al. BMC Genomics 2006 7:25   doi:10.1186/1471-2164-7-25