@article{fdi:010068807,
  title = {{L}inking morphometric and genetic divergence with host use in the tick complex, {O}rnithodoros capensis sensu lato},
  author = {{D}upraz, {M}. and {T}oty, {C}{\'e}line and {N}oel, {V}. and {E}strada-{P}ena, {A}. and {G}onzalez-{S}olis, {J}. and {B}oulinier, {T}. and {D}ujardin, {J}ean-{P}ierre and {M}c{C}oy, {K}. {D}.},
  editor = {},
  language = {{ENG}},
  abstract = {{H}ost specific adaptations in parasites can lead to the divergence of conspecific populations. {H}owever, this divergence can be difficult to measure because morphological changes may not be expressed or because obvious changes may simply reflect phenotypic plasticity. {C}ombining both genetic and phenotypic information can enable a better understanding of the divergence process and help identify the underlying selective forces, particularly in closely-related species groups. {H}ere, we link genetic and morphometric data to understand divergence patterns within the {O}rnithodoros ({C}arios) capensis complex, a group of soft ticks ({A}rgasidae) exploiting colonial seabirds across the globe. {S}pecies designations in this complex were historically based on larval morphology and geographic location. {H}owever, recent work has suggested that divergence within the group may be at least partially linked to host specificity. {W}e therefore first examined population genetic structure of ticks in relation to host use and geography. {T}hese analyses revealed strong structure in relation to host use, both when populations were sympatric and widely allopatric, with a secondary effect of geography. {T}hey also demonstrated the presence of several novel and presumably undescribed species exploiting these seabird hosts. {W}e then used geometric morphometrics (landmark and outline analyses) to test whether host-associated genetic divergence is always accompanied by the same phenotypic changes. {W}e found that morphological variation (size and shape) correlated well with genetic structure; tick size and shape varied strongly in relation to host type, and weakly with geography. {T}hese results support the hypothesis that speciation in this tick group has been more strongly shaped by host use than by geographic barriers per se. {T}he revealed phenetic patterns now require detailed investigation to link them with host-specific selective forces.},
  keywords = {{A}daptation ; {H}ost specificity ; {P}opulation genetic structure ; {M}orphometry ; {E}ctoparasite ; {T}ropical seabirds ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{I}nfection {G}enetics and {E}volution},
  volume = {46},
  numero = {},
  pages = {12--22},
  ISSN = {1567-1348},
  year = {2016},
  DOI = {10.1016/j.meegid.2016.10.005},
  URL = {https://www.documentation.ird.fr/hor/fdi:010068807},
}