General Information: Wolbachia endosymbiont of Drosophila melanogaster. Fruitfly endosymbiont. This group of bacteria are associated with a variety of invertebrate species, some as pathogens, some in a symbiotic or other type of relationship. Typically these organisms are transmitted maternally from mother to daughter transovarially (through the egg) although these bacteria can affect their hosts reproductive capabilities in order to enhance transmission. The net outcome is the increase of hosts carrying the bacteria in the next generation, thereby increasing transmission. Wolbachia endosymbiont of Drosophila melanogaster is an obligate intracellular endosymbiont of the fruit fly Drosophila melanogaster.