Current phylogenies of the intracellular bacteria belonging to the genus Wolbachia identify six major clades (A-F), termed 'supergroups', but the branching order of these supergroups remains unresolved. Supergroups A, B and E include most of the wolbachiae found thus far in arthropods, while supergroups C and D include most of those found in filarial nematodes. Members of supergroup F have been found in arthropods (i.e. termites), and have previously been detected in the nematode Mansonella ozzardi, a causative agent of human filariasis. To resolve the phylogenetic positions of Wolbachia from Mansonella spp., and other novel strains from the flea Ctenocephalides felis and the filarial nematode Dipetalonema gracile, the authors generated new DNA sequences of the Wolbachia genes encoding citrate synthase (gltA), heat-shock protein 60 (groEL), and the cell division protein ftsZ. Phylogenetic analysis confirmed the designation of Wolbachia from Mansonella spp. as a member of the F supergroup. In addition, it was found that divergent lineages from Dip. gracile and Cte. felis lack any clear affiliation with known supergroups, indicating further genetic diversity within the Wolbachia genus. Finally, although the data generated did not permit clear resolution of the root of the global Wolbachia tree, the results suggest that the transfer of Wolbachia spp. from arthropods to nematodes (or vice versa) probably occurred more than once.

Casiraghi, M., Bordenstein, S., Baldo, L., Lo, N., Wernegreen, X., Werren, J., et al. (2005). Phylogeny of Wolbachia based on gltA, groEL and ftsZ gene sequences: clustering of arthropod and nematode symbionts in the F supergroup and evidence for two further supergroups. MICROBIOLOGY, 151, 4015-4022 [10.1099/mic.0.28313-0].

Phylogeny of Wolbachia based on gltA, groEL and ftsZ gene sequences: clustering of arthropod and nematode symbionts in the F supergroup and evidence for two further supergroups

CASIRAGHI, MAURIZIO;
2005

Abstract

Current phylogenies of the intracellular bacteria belonging to the genus Wolbachia identify six major clades (A-F), termed 'supergroups', but the branching order of these supergroups remains unresolved. Supergroups A, B and E include most of the wolbachiae found thus far in arthropods, while supergroups C and D include most of those found in filarial nematodes. Members of supergroup F have been found in arthropods (i.e. termites), and have previously been detected in the nematode Mansonella ozzardi, a causative agent of human filariasis. To resolve the phylogenetic positions of Wolbachia from Mansonella spp., and other novel strains from the flea Ctenocephalides felis and the filarial nematode Dipetalonema gracile, the authors generated new DNA sequences of the Wolbachia genes encoding citrate synthase (gltA), heat-shock protein 60 (groEL), and the cell division protein ftsZ. Phylogenetic analysis confirmed the designation of Wolbachia from Mansonella spp. as a member of the F supergroup. In addition, it was found that divergent lineages from Dip. gracile and Cte. felis lack any clear affiliation with known supergroups, indicating further genetic diversity within the Wolbachia genus. Finally, although the data generated did not permit clear resolution of the root of the global Wolbachia tree, the results suggest that the transfer of Wolbachia spp. from arthropods to nematodes (or vice versa) probably occurred more than once.
Articolo in rivista - Articolo scientifico
Wolbachia; phylogeny; evolution
English
4015
4022
Casiraghi, M., Bordenstein, S., Baldo, L., Lo, N., Wernegreen, X., Werren, J., et al. (2005). Phylogeny of Wolbachia based on gltA, groEL and ftsZ gene sequences: clustering of arthropod and nematode symbionts in the F supergroup and evidence for two further supergroups. MICROBIOLOGY, 151, 4015-4022 [10.1099/mic.0.28313-0].
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10281/14272
Citazioni
  • Scopus 194
  • ???jsp.display-item.citation.isi??? 181
Social impact