- Reproductive manipulation: cytoplasmic incompatibility and other mechanisms
- Wolbachia cell biology
- Wolbachia genomics, biochemistry and molecular biology
- Wolbachia as tools and targets of disease/pest control ā Insects
- Wolbachia as tools and targets of disease/pest control ā Filariae
- Facultative symbiont diversity, ecology and evolution
- Wolbachia and other symbionts that cause sex ratio distortion
- Other symbiont species in arthropods