@article{fdi:010064787, title = {{E}ffect of sampling methods, effective population size and migration rate estimation in {G}lossina palpalis palpalis from {C}ameroon}, author = {{M}elachio, {T}. {T}. {T}. and {N}jiokou, {F}. and {R}avel, {S}ophie and {S}imo, {G}. and {S}olano, {P}hilippe and {D}e {M}eeûs, {T}hierry}, editor = {}, language = {{ENG}}, abstract = {{H}uman and animal trypanosomiases are two major constraints to development in {A}frica. {T}hese diseases are mainly transmitted by tsetse flies in particular by {G}lossina palpalis palpalis in {W}estern and {C}entral {A}frica. {T}o set up an effective vector control campaign, prior population genetics studies have proved useful. {P}revious studies on population genetics of {G}. p. palpalis using microsatellite loci showed high heterozygote deficits, as compared to {H}ardy-{W}einberg expectations, mainly explained by the presence of null alleles and/or the mixing of individuals belonging to several reproductive units ({W}ahlund effect). {I}n this study we implemented a system of trapping, consisting of a central trap and two to four satellite traps around the central one to evaluate a possible role of the {W}ahlund effect in tsetse flies from three {C}ameroon human and animal {A}frican trypanosomiases foci ({C}ampo, {B}ipindi and {F}ontem). {W}e also estimated effective population sizes and dispersal. {N}o difference was observed between the values of allelic richness, genetic diversity and {W}right's {F}-{IS}, in the samples from central and from satellite traps, suggesting an absence of {W}ahlund effect. {P}artitioning of the samples with {B}ayesian methods showed numerous clusters of 2-3 individuals as expected from a population at demographic equilibrium with two expected offspring per reproducing female. {A}s previously shown, null alleles appeared as the most probable factor inducing these heterozygote deficits in these populations. {E}ffective population sizes varied from 80 to 450 individuals while immigration rates were between 0.05 and 0.43, showing substantial genetic exchanges between different villages within a focus. {T}hese results suggest that the "suppression" with establishment of physical barriers may be the best strategy for a vector control campaign in this forest context.}, keywords = {{G}lossina palpalis palpalis ; {H}eterozygote deficits ; {S}ampling methods ; {M}igration rate ; {E}ffective population size ; {W}ahlund effect ; {CAMEROUN}}, booktitle = {}, journal = {{I}nfection {G}enetics and {E}volution}, volume = {33}, numero = {}, pages = {150--157}, ISSN = {1567-1348}, year = {2015}, DOI = {10.1016/j.meegid.2015.04.023}, URL = {https://www.documentation.ird.fr/hor/fdi:010064787}, }