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

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