Wolbachia genes detected from the bean beetle Callosobruchus chinensis strain jC^Aus mapped on the whole genome of the Wolbachia strain wMel from Drosophila melanogaster. (Inner circle) PCR detection of Wolbachia genes. Red and black lines indicate PCR-positive and PCR-negative genes, respectively. (Outer circle) Southern blot detection of Wolbachia genome regions. Green and white blocks indicate Southern-positive and Southern-negative regions, respectively. Pink blocks show prophage regions.