@article{fdi:010061889, title = {{O}rigin, acquisition and diversification of heritable bacterial endosymbionts in louse flies and bat flies}, author = {{D}uron, {O}livier and {S}chneppat, {U}. {E}. and {B}erthomieu, {A}. and {G}oodman, {S}. {M}. and {D}roz, {B}. and {P}aupy, {C}hristophe and {N}koghe, {J}. {O}. and {R}ahola, {N}il and {T}ortosa, {P}.}, editor = {}, language = {{ENG}}, abstract = {{T}he gamma-proteobacterium {A}rsenophonus and its close relatives ({A}rsenophonus and like organisms, {ALO}s) are emerging as a novel clade of endosymbionts, which are exceptionally widespread in insects. {T}he biology of {ALO}s is, however, in most cases entirely unknown, and it is unclear how these endosymbionts spread across insect populations. {H}ere, we investigate this aspect through the examination of the presence, the diversity and the evolutionary history of {ALO}s in 25 related species of blood-feeding flies: tsetse flies ({G}lossinidae), louse flies ({H}ippoboscidae) and bat flies ({N}ycteribiidae and {S}treblidae). {W}hile these endosymbionts were not found in tsetse flies, we identify louse flies and bat flies as harbouring the highest diversity of {ALO} strains reported to date, including a novel {ALO} clade, as well as {A}rsenophonus and the recently described {C}andidatus {A}schnera chinzeii. {W}e further show that the origin of {ALO} endosymbioses extends deep into the evolutionary past of louse flies and bat flies, and that it probably played a major role in the ecological specialization of their hosts. {T}he evolutionary history of {ALO}s is notably complex and was shaped by both vertical transmission and horizontal transfers with frequent host turnover and apparent symbiont replacement in host lineages. {I}n particular, {ALO}s have evolved repeatedly and independently close relationships with diverse groups of louse flies and bat flies, as well as phylogenetically more distant insect families, suggesting that {ALO} endosymbioses are exceptionally dynamic systems.}, keywords = {co-evolution ; {A}rsenophonus ; endosymbiosis ; louse fly ; bat fly ; heritable ; bacteria ; {GABON} ; {ZIMBABWE} ; {FRANCE} ; {SUISSE} ; {MADAGASCAR}}, booktitle = {}, journal = {{M}olecular {E}cology}, volume = {23}, numero = {8}, pages = {2105--2117}, ISSN = {0962-1083}, year = {2014}, DOI = {10.1111/mec.12704}, URL = {https://www.documentation.ird.fr/hor/fdi:010061889}, }