@article{fdi:010072473, title = {{W}ild crop relative populations hot-spots of diversity are hot-spots of introgression in the case of pearl millet}, author = {{A}ssoumane, {A}. and {B}lay, {C}. and {S}anda, {A}. {K}. {A}. and {M}ariac, {C}{\'e}dric and {P}ham, {J}ean-{L}ouis and {B}ezan{\c{c}}on, {G}illes and {V}igouroux, {Y}ves}, editor = {}, language = {{ENG}}, abstract = {{W}ild crop relatives are unique genetic resources for crop adaptation. {I}ncreasing pressure from agriculture threatens these populations both by reducing their habitats and by creating opportunities for wild-cultivated hybridization. {I}n this study, we assessed the diversity of 38 wild pearl millet populations covering the whole known distribution of the species in {A}frica, which extends from {S}enegal to {S}udan. {U}sing genetic analyses of 10 cultivated varieties as control, we demonstrate the high diversity harbored by these wild populations. {D}iversity patterns suggest a diversity hot-spot in the southern part of the wild population's range. {H}owever, this high wild genetic diversity could partly be explained by introgression from cultivated varieties. {S}uch introgression is widespread in the {S}ahel. {W}e validate the impact of cultivated introgression on the diversity of the wild population using a genetic introgression model. {T}he introgression distorts the real assessment of the diversity of the wild population, and the burden of this gene flow compromises the long term survival of the wild populations' original genome. {O}ur study also questions the long term survival of the crop's wild relatives.}, keywords = {{D}omestication ; {W}ild population diversity ; {D}iversity hot-spot ; {C}onservation genetics ; {P}ennisetum glaucum ; {ZONE} {SAHELIENNE}}, booktitle = {}, journal = {{G}enetic {R}esources and {C}rop {E}volution}, volume = {65}, numero = {4}, pages = {1187--1194}, ISSN = {0925-9864}, year = {2018}, DOI = {10.1007/s10722-018-0607-8}, URL = {https://www.documentation.ird.fr/hor/fdi:010072473}, }