TABLE 1.

Libraries of 16S rRNA or 16S rRNA genes prepared from RNA and DNA extracted from soilsa

LibrarySourcebNo. of clonesNo. of sequencesReference(s)
NMS8Canada, forest, DNA9167 5
NMW3Canada, forest, DNA9061 5
NOS7Canada, forest, DNA9273 5
NOW2Canada, forest, DNA9376 5
SMS9Canada, forest, DNA9483 5
SMW4Canada, forest, DNA9256 5
FVMBrazil, forest, DNA4848 12
FVPBrazil, pasture, DNA4949 12
C0United States, arid woodland, DNA162162 32, 33, 65
C1United States, arid woodland, DNA109109 32, 33, 65
S0United States, arid woodland, DNA163163 32, 33, 65
S1United States, arid woodland, DNA102102 32, 33, 65
a13United Kingdom, DNA*3938 35
HBUnited States, cropping rotation, DNA9595 45
TcSwitzerland, RNA + DNA*141141 50
KolmAustria, forest, DNA4545 51
RothAustria, forest, DNA5151 51
STAustria, forest, DNA4141 51
SturtAustralia, arid landscape, DNA122122 54
WMARS00United States, DNA*258258 71
WMARS97United States, DNA*138138 71
NiwotUnited States, alpine meadow, DNA180159 72
LBSSwitzerland, pasture, DNA2727 76
TBSSwitzerland, pasture, DNA2626 76
safUnited Kingdom, pasture, DNA137137 77
s1United Kingdom, pasture, DNA137137 77
WittGermany, moorland, RNA + DNA396396 82, 83
C6Germany, forest, DNA3131 92
MTPUnited States, wheat, DNA9393 105
ABSUnited States, grassland, DNA5959 121
DSUnited States, grassland, DNA6262 121
EBAustralia, pasture, DNA135135c
Totals3,3983,240
  • a All libraries were used to ascertain the genus and family affiliations of soil bacteria, but only libraries with ≥90 clones were used to determine phylum and class level abundances.

  • b *, details of vegetation not given.

  • c L. Schoenborn and P. H. Janssen, unpublished data (GenBank accession no. AY395320 to AY395454 ).