@article{fdi:010077931,
  title = {{M}icrobial community structure reveals instability of nutritional symbiosis during the evolutionary radiation of {A}mblyomma ticks},
  author = {{B}inetruy, {F}. and {B}uysse, {M}. and {L}ejarre, {Q}. and {B}arosi, {R}. and {V}illa, {M}. and {R}ahola, {N}il and {P}aupy, {C}hristophe and {A}yala, {D}iego and {D}uron, {O}.},
  editor = {},
  language = {{ENG}},
  abstract = {{M}utualistic interactions with microbes have facilitated the adaptation of major eukaryotic lineages to restricted diet niches. {H}ence, ticks with their strictly blood-feeding lifestyle are associated with intracellular bacterial symbionts through an essential {B} vitamin supplementation. {I}n this study, examination of bacterial diversity in 25 tick species of the genus {A}mblyomma showed that three intracellular bacteria, {C}oxiella-like endosymbionts ({LE}), {F}rancisella-{LE} and {R}ickettsia, are remarkably common. {N}o other bacterium is as uniformly present in {A}mblyomma ticks. {A}lmost all {A}mblyomma species were found to harbour a nutritive obligate symbiont, {C}oxiella-{LE} or {F}rancisella-{LE}, that is able to synthesize {B} vitamins. {H}owever, despite the co-evolved and obligate nature of these mutualistic interactions, the structure of microbiomes does not mirror the {A}mblyomma phylogeny, with a clear exclusion pattern between {C}oxiella-{LE} and {F}rancisella-{LE} across tick species. {C}oxiella-{LE}, but not {F}rancisella-{LE}, form evolutionarily stable associations with ticks, commonly leading to co-cladogenesis. {W}e further found evidence for symbiont replacements during the radiation of {A}mblyomma, with recent, and probably ongoing, invasions by {F}rancisella-{LE} and subsequent replacements of ancestral {C}oxiella-{LE} through transient co-infections. {N}utritional symbiosis in {A}mblyomma ticks is thus not a stable evolutionary state, but instead arises from conflicting origins between unrelated but competing symbionts with similar metabolic capabilities.},
  keywords = {coevolution ; endosymbiont replacement ; maternally inherited bacteria ; microbial community ; symbiosis ; ticks},
  booktitle = {},
  journal = {{M}olecular {E}cology},
  volume = {29},
  numero = {5},
  pages = {1016--1029},
  ISSN = {0962-1083},
  year = {2020},
  DOI = {10.1111/mec.15373},
  URL = {https://www.documentation.ird.fr/hor/fdi:010077931},
}