Figure 1. Phylogenetic tree of the 2757-bp coding-region sequence in 33 stocks (“a, b” datasets) derived from a maximum likelihood analysis of Drosophila melanogaster mtDNA.

The tree reveals two major clades, each associated with one of the two Wolbachia genotype groups. Names, origin, infection status of stocks and bootstrap (1000 replicates) values higher than 75 are provided. The samples infected with identical Wolbachia genotypes are indicated with the same colour.