@article{fdi:010088326, title = {{P}opulation genetics of {G}lossina fuscipes fuscipes from southern {C}had}, author = {{R}avel, {S}ophie and {M}ahamat, {M}.{H}. and {S}{\'e}gard, {A}deline and {A}rgil{\'e}s-{H}errero, {R}. and {B}ouyer, {J}. and {R}ayaisse, {J}.{B}. and {S}olano, {P}hilippe and {G}uihini {M}ollo, {B}. and {P}{\`e}ka, {M}. and {D}arnas, {J}. and {B}elem, {A}.{M}.{G}. and {Y}oni, {W}. and {N}oûs, {C}. and {D}e {M}eeûs, {T}hierry}, editor = {}, language = {{ENG}}, abstract = {{I}n {S}ubsaharan {A}frica, tsetse flies (genus {G}lossina) are vectors of trypanosomes causing {H}uman {A}frican {T}rypanosomiasis ({HAT}) and {A}nimal {A}frican {T}rypanosomosis ({AAT}). {S}ome foci of {HAT} persist in {S}outhern {C}had, where a program of tsetse control was started against the local vector {G}lossina fuscipes fuscipes in the {M}andoul focus in 2014, and in {M}aro in 2018. {F}lies were also sampled in 2018 in {T}imb{\'e}ri and {D}okoutou. {W}e analyzed the population genetics of {G}. fuscipes fuscipes from the four tsetse-infested zones. {T}he trapping samples were characterized by a strong female biased sex-ratio, except in {T}imb{\'e}ri and {D}okoutou that had high tsetse densities. {A}pparent density and effective population density appeared smaller in the main foci of {M}andoul and {M}aro and the average dispersal distance (within the spatial scale of each zone) was as large as or larger than the total length of each respective zone. {T}he genetic signature of a population bottleneck was found in the {M}andoul and {T}imb{\'e}ri area, suggesting a large ancient interconnected metapopulation that underwent genetic subdivision into small, isolated pockets due to adverse environmental conditions. {T}he long-range dispersal and the existence of genetic outliers suggest a possibility of migration from remote sites such as the {C}entral {A}frican {R}epublic in the south (although the fly situation remains unknown there) and/or a genetic signature of recent exchanges. {D}ue to likely isolation, an eradication strategy may be considered for sustainable {HAT} control in {M}andoul focus. {A}nother strategy will probably be required in {M}aro focus, which probably experiences much more exchanges with its neighbors.}, keywords = {{TCHAD} ; {MANDOUL} {REGION} ; {MARO} ; {DOKOUTOU} ; {TIMBERI}}, booktitle = {}, journal = {{P}eer {C}ommunity {J}ournal}, volume = {3}, numero = {}, pages = {e31 [32 ]}, ISSN = { 2804-3871}, year = {2023}, DOI = {10.24072/pcjournal.257}, URL = {https://www.documentation.ird.fr/hor/fdi:010088326}, }