FIG. 3.

Comparative genomic organization of the region encompassing the lum1 and tcc loci in the different Photorhabdus strains W14 and TT01. Solid circles, open circles, and inverted triangles above the open reading frames indicate the predicted presence, divergence, and absence of genes, respectively, according to hybridization to the microarray. Other symbols and dashed lines indicate the locations of specific deletion or insertion events within the two genomes (see the key). Note that all the genes of the tcc locus are present in both strains and are also linked to the mcf locus in TT01. Sequences are from GenBank accession no. AF346499 and AF503504 and from World Intellectual Property 02/094867.