| phylogenomics and analysis of shared genes suggest a single transition to mutualism in wolbachia of nematodes. | wolbachia, endosymbiotic bacteria of the order rickettsiales, are widespread in arthropods but also present in nematodes. in arthropods, a and b supergroup wolbachia are generally associated with distortion of host reproduction. in filarial nematodes, including some human parasites, multiple lines of experimental evidence indicate that c and d supergroup wolbachia are essential for the survival of the host, and here the symbiotic relationship is considered mutualistic. the origin of this mutuali ... | 0 | 23960254 |