||"The distribution of ISs among different bacterial genera and
groups (ref 146a, Holt, J. G., N. R. Krieg, P. H. A. Sneath, J. T. Staley, and S. T. Williams.
1994. Bergey’s manual of determinative bacteriology, 9th ed. The Williams
& Wilkins Co., Baltimore, Md.) is presented in Tables 3 and 4 (including isoforms).
What has become increasingly clear since the publication
of Mobile DNA in 1989 (ref 29, Berg, D. E., and M. M. Howe (ed.). 1989. Mobile DNA. American Society
for Microbiology, Washington, D.C.) is that members of most
individual families can be distributed across many different
eubacterial and archaebacterial genera (Table 3 BNID 111312). So far, two
exceptions are IS1, which appears to be limited to the enterobacteria,
and IS66, which is restricted to bacteria of the rhizosphere.
Not unexpectedly, the groups of bacteria in which
the largest number of elements have been documented are also those which have received the most attention (Table 4). This
implies that a wealth of elements remain to be discovered in
the less well characterized groups." Please note there is also at least one archaea genus (Halobacterium)