FIG. 1.

Alignment of the DNA sequence of a portion of the P. carinii gene encoding the mt LSU rRNA isolated from wild rats showing the sequences from P. carinii f. sp. carinii (pc-carinii) and P. carinii f. sp. ratti (pc-ratti) and the new DNA sequences from P. carinii f. sp. rattus-secundi (pc-rat-sec), P. carinii f. sp. rattus-tertii (pc-rat-ter), and P. carinii f. sp. rattus-quarti (pc-rat-qua). Nucleotides are boxed to highlight regions of sequence identity. Gaps (–) were introduced to improve the alignment.