@article{fdi:010052891, title = {{S}wift sympatric adaptation of a species of cattle tick to a new deer host in {N}ew {C}aledonia}, author = {{D}e {M}eeûs, {T}hierry and {K}offi, {B}rou {B}asile and {B}arr{\'e}, {N}. and {G}arine {W}ichatitsky, {M}. de and {C}hevillon, {C}hristine}, editor = {}, language = {{ENG}}, abstract = {{T}he occurrence and frequency of sympatric speciation in natural systems continue to be hotly debated issues in evolutionary biology. {T}his might reflect the timescale over which evolution occurs resulting in there being few compelling observations of the phenomenon (lake fishes, phytophagous insects and {I}sland trees). {D}espite predictions, few examples of sympatric speciation have been recorded in animal parasites, at least widely accepted as such. {H}ere we show that, in {N}ew {C}aledonia, the monophasic (exploiting one individual host per generation) cattle tick {R}hipicephalus microplus has evolved in contact with two sympatric host species into two differentiated genetic pools: on the cattle, its original host and on rusa deer, a new host for this tick. {T}his sympatric isolation has occurred over a relative short period of time (i.e. less than 244 tick generations) as a consequence of differential selection pressure imposed by hosts. {I}t is most likely that this phenomenon has occurred in many other places across the globe where this tick has come in contact with different host species in sympatry with cattle.}, keywords = {{S}ympatric speciation ; {H}ost race ; {T}ick ; {R}hipicepalus microplus ; {C}attle ; {R}usa deer ; {N}ew {C}aledonia ; {NOUVELLE} {CALEDONIE}}, booktitle = {}, journal = {{I}nfection {G}enetics and {E}volution}, volume = {10}, numero = {7}, pages = {976--983}, ISSN = {1567-1348}, year = {2010}, DOI = {10.1016/j.meegid.2010.06.005}, URL = {https://www.documentation.ird.fr/hor/fdi:010052891}, }