@article{fdi:010079949, title = {{P}earl millet genomic vulnerability to climate change in {W}est {A}frica highlights the need for regional collaboration}, author = {{R}hon{\'e}, {B}{\'e}n{\'e}dicte and {D}efrance, {D}imitri and {B}erthouly, {C}{\'e}cile and {M}ariac, {C}{\'e}dric and {C}ubry, {P}hilippe and {C}ouderc, {M}arie and {D}equincey, {A}na{\¨ie}s and {A}ssoumanne, {A}. and {K}ane, {N}. {A}. and {S}ultan, {B}enjamin and {B}arnaud, {A}deline and {V}igouroux, {Y}ves}, editor = {}, language = {{ENG}}, abstract = {{C}limate change is already affecting agro-ecosystems and threatening food security by reducing crop productivity and increasing harvest uncertainty. {M}obilizing crop diversity could be an efficient way to mitigate its impact. {W}e test this hypothesis in pearl millet, a nutritious staple cereal cultivated in arid and low-fertility soils in sub-{S}aharan {A}frica. {W}e analyze the genomic diversity of 173 landraces collected in {W}est {A}frica together with an extensive climate dataset composed of metrics of agronomic importance. {M}apping the pearl millet genomic vulnerability at the 2050 horizon based on the current genomic-climate relationships, we identify the northern edge of the current areas of cultivation of both early and late flowering varieties as being the most vulnerable to climate change. {W}e predict that the most vulnerable areas will benefit from using landraces that already grow in equivalent climate conditions today. {H}owever, such seed-exchange scenarios will require long distance and trans-frontier assisted migrations. {L}everaging genetic diversity as a climate mitigation strategy in {W}est {A}frica will thus require regional collaboration. {R}eplacement of local crops with alternative varieties adapted to future conditions may improve food security under climate change. {H}ere the authors apply landscape genomics and ensemble climate modelling to pearl millet in {W}est {A}frica, supporting the potential of transfrontier assisted seed exchange.}, keywords = {{AFRIQUE} {DE} {L}'{OUEST}}, booktitle = {}, journal = {{N}ature {C}ommunications}, volume = {11}, numero = {1}, pages = {5274 [9 ]}, ISSN = {2041-1723}, year = {2020}, DOI = {10.1038/s41467-020-19066-4}, URL = {https://www.documentation.ird.fr/hor/fdi:010079949}, }