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A comparison of the conjugation systems of F plasmid from Escherichia coli and plasmid pCF10 from Enterococcus faecalis using data from the aggregation-mediated conjugation system encoded from Bacillus thuringiensis' pXO16 reveals a number of common characteristics despite the obvious basic differences. One common characteristic shared by the two plasmids include their ability to sustain highly efficient conjugative transfers in a liquid environment.

The plasmid pAW63, the minor plasmid of the two large plasmids of Bacillus thuringiensis subspecies kurstaki strain HD73 was shown to be self-transmissible. Further, it can be transmitted to the other species of the genus Bacillus. The plasmid was tagged with the tetracycline resistance gene and was observed to be transmitted to all recipients within two hours. Bacillus thuringiensis subspecies kurstaki strain HD73 colonizes the larvae of lepidopterans.

A detailed functional analysis of pG12, a 9672 bp plasmid from Bacillus thuringiensis H1.1 that harbors the 4149 bp transposon Tn4430, was conducted. The experiment included its double-strand and single-strand replication module, the activity of its Mob proteins and the influence of various modules on its segregational stability. The distribution of the pG12 replicon among members of the Bacillus cereus group was also investigated.