FIG. 2.

Schematic representation of mosaic tetracycline resistance genes from the fecal material of Spanish pig herd 1. Stippled regions indicate gene segments sharing high sequence identity with C. jejuni tet(O) (accession no. M18896). Open regions represent high sequence identity with B. fibrisolvens tet(W) (accession no. AJ222769). Hatched areas have a high level of similarity to the tet(32) region of the tet(O/32/O)-1 gene from Clostridium sp. strain K10 (accession no. AJ295238). Mosaic genes produced by recombination between the same tet classes at different crossover positions are differentiated by italicized numbers. *, tet(O/W/O)-1 and -2 were identified previously (11). **, three other tet(O/32/O) mosaics were also identified, tet(O/32/O)-3, -4, and -5, changing at positions 882 and 1263, 876 and 1248, and 867 and 1307, respectively.