Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration
Climate change is already affecting agro-ecosystems and threatening food security by reducing crop productivity and increasing harvest uncertainty. Mobilizing crop diversity could be an efficient way to mitigate its impact. We test this hypothesis in pearl millet, a nutritious staple cereal cultivated in arid and low-fertility soils in sub-Saharan Africa. We analyze the genomic diversity of 173 landraces collected in West Africa together with an extensive climate dataset composed of metrics of agronomic importance. Mapping 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. We predict that the most vulnerable areas will benefit from using landraces that already grow in equivalent climate conditions today. However, such seed-exchange scenarios will require long distance and trans-frontier assisted migrations. Leveraging genetic diversity as a climate mitigation strategy in West Africa will thus require regional collaboration.
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dig-cirad-fr-5968012024-01-29T03:07:09Z http://agritrop.cirad.fr/596801/ http://agritrop.cirad.fr/596801/ Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration. Rhone Bénédicte, Defrance Dimitri, Berthouly-Salazar Cécile, Mariac Cédric, Cubry Philippe, Couderc Marie, Dequincey Anaïs, Assoumane Aichatou, Kane Ndjido Ardo, Sultan Benjamin, Barnaud Adeline, Vigouroux Yves. 2020. Nature Communications, 11:5274, 9 p.https://doi.org/10.1038/s41467-020-19066-4 <https://doi.org/10.1038/s41467-020-19066-4> Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration Rhone, Bénédicte Defrance, Dimitri Berthouly-Salazar, Cécile Mariac, Cédric Cubry, Philippe Couderc, Marie Dequincey, Anaïs Assoumane, Aichatou Kane, Ndjido Ardo Sultan, Benjamin Barnaud, Adeline Vigouroux, Yves eng 2020 Nature Communications F30 - Génétique et amélioration des plantes P40 - Météorologie et climatologie Cenchrus americanus adaptation aux changements climatiques facteur climatique résistance aux facteurs nuisibles adaptation physiologique génomique phytogénétique atténuation des effets du changement climatique diversité génétique (comme ressource) rendement des cultures collaboration mil à chandelle caractéristique génomique http://aims.fao.org/aos/agrovoc/c_13199 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_92382 http://aims.fao.org/aos/agrovoc/c_49985 http://aims.fao.org/aos/agrovoc/c_1374571087594 http://aims.fao.org/aos/agrovoc/c_33952 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_fc567bfb http://aims.fao.org/aos/agrovoc/c_e4e17d1b http://aims.fao.org/aos/agrovoc/c_331060 Afrique occidentale http://aims.fao.org/aos/agrovoc/c_8355 Climate change is already affecting agro-ecosystems and threatening food security by reducing crop productivity and increasing harvest uncertainty. Mobilizing crop diversity could be an efficient way to mitigate its impact. We test this hypothesis in pearl millet, a nutritious staple cereal cultivated in arid and low-fertility soils in sub-Saharan Africa. We analyze the genomic diversity of 173 landraces collected in West Africa together with an extensive climate dataset composed of metrics of agronomic importance. Mapping 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. We predict that the most vulnerable areas will benefit from using landraces that already grow in equivalent climate conditions today. However, such seed-exchange scenarios will require long distance and trans-frontier assisted migrations. Leveraging genetic diversity as a climate mitigation strategy in West Africa will thus require regional collaboration. article info:eu-repo/semantics/article Journal Article info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/596801/1/2020_Rhone-etal_NatCom.pdf text cc_by info:eu-repo/semantics/openAccess https://creativecommons.org/licenses/by/4.0/ https://doi.org/10.1038/s41467-020-19066-4 10.1038/s41467-020-19066-4 info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-020-19066-4 info:eu-repo/semantics/altIdentifier/purl/https://doi.org/10.1038/s41467-020-19066-4 info:eu-repo/semantics/dataset/purl/https://www.ncbi.nlm.nih.gov/bioproject/?term=PRJNA422966 info:eu-repo/semantics/dataset/purl/https://zenodo.org/record/3970815#.X5Aks-06_IU |
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F30 - Génétique et amélioration des plantes P40 - Météorologie et climatologie Cenchrus americanus adaptation aux changements climatiques facteur climatique résistance aux facteurs nuisibles adaptation physiologique génomique phytogénétique atténuation des effets du changement climatique diversité génétique (comme ressource) rendement des cultures collaboration mil à chandelle caractéristique génomique http://aims.fao.org/aos/agrovoc/c_13199 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_92382 http://aims.fao.org/aos/agrovoc/c_49985 http://aims.fao.org/aos/agrovoc/c_1374571087594 http://aims.fao.org/aos/agrovoc/c_33952 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_fc567bfb http://aims.fao.org/aos/agrovoc/c_e4e17d1b http://aims.fao.org/aos/agrovoc/c_331060 http://aims.fao.org/aos/agrovoc/c_8355 F30 - Génétique et amélioration des plantes P40 - Météorologie et climatologie Cenchrus americanus adaptation aux changements climatiques facteur climatique résistance aux facteurs nuisibles adaptation physiologique génomique phytogénétique atténuation des effets du changement climatique diversité génétique (comme ressource) rendement des cultures collaboration mil à chandelle caractéristique génomique http://aims.fao.org/aos/agrovoc/c_13199 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_92382 http://aims.fao.org/aos/agrovoc/c_49985 http://aims.fao.org/aos/agrovoc/c_1374571087594 http://aims.fao.org/aos/agrovoc/c_33952 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_fc567bfb http://aims.fao.org/aos/agrovoc/c_e4e17d1b http://aims.fao.org/aos/agrovoc/c_331060 http://aims.fao.org/aos/agrovoc/c_8355 |
spellingShingle |
F30 - Génétique et amélioration des plantes P40 - Météorologie et climatologie Cenchrus americanus adaptation aux changements climatiques facteur climatique résistance aux facteurs nuisibles adaptation physiologique génomique phytogénétique atténuation des effets du changement climatique diversité génétique (comme ressource) rendement des cultures collaboration mil à chandelle caractéristique génomique http://aims.fao.org/aos/agrovoc/c_13199 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_92382 http://aims.fao.org/aos/agrovoc/c_49985 http://aims.fao.org/aos/agrovoc/c_1374571087594 http://aims.fao.org/aos/agrovoc/c_33952 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_fc567bfb http://aims.fao.org/aos/agrovoc/c_e4e17d1b http://aims.fao.org/aos/agrovoc/c_331060 http://aims.fao.org/aos/agrovoc/c_8355 F30 - Génétique et amélioration des plantes P40 - Météorologie et climatologie Cenchrus americanus adaptation aux changements climatiques facteur climatique résistance aux facteurs nuisibles adaptation physiologique génomique phytogénétique atténuation des effets du changement climatique diversité génétique (comme ressource) rendement des cultures collaboration mil à chandelle caractéristique génomique http://aims.fao.org/aos/agrovoc/c_13199 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_92382 http://aims.fao.org/aos/agrovoc/c_49985 http://aims.fao.org/aos/agrovoc/c_1374571087594 http://aims.fao.org/aos/agrovoc/c_33952 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_fc567bfb http://aims.fao.org/aos/agrovoc/c_e4e17d1b http://aims.fao.org/aos/agrovoc/c_331060 http://aims.fao.org/aos/agrovoc/c_8355 Rhone, Bénédicte Defrance, Dimitri Berthouly-Salazar, Cécile Mariac, Cédric Cubry, Philippe Couderc, Marie Dequincey, Anaïs Assoumane, Aichatou Kane, Ndjido Ardo Sultan, Benjamin Barnaud, Adeline Vigouroux, Yves Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration |
description |
Climate change is already affecting agro-ecosystems and threatening food security by reducing crop productivity and increasing harvest uncertainty. Mobilizing crop diversity could be an efficient way to mitigate its impact. We test this hypothesis in pearl millet, a nutritious staple cereal cultivated in arid and low-fertility soils in sub-Saharan Africa. We analyze the genomic diversity of 173 landraces collected in West Africa together with an extensive climate dataset composed of metrics of agronomic importance. Mapping 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. We predict that the most vulnerable areas will benefit from using landraces that already grow in equivalent climate conditions today. However, such seed-exchange scenarios will require long distance and trans-frontier assisted migrations. Leveraging genetic diversity as a climate mitigation strategy in West Africa will thus require regional collaboration. |
format |
article |
topic_facet |
F30 - Génétique et amélioration des plantes P40 - Météorologie et climatologie Cenchrus americanus adaptation aux changements climatiques facteur climatique résistance aux facteurs nuisibles adaptation physiologique génomique phytogénétique atténuation des effets du changement climatique diversité génétique (comme ressource) rendement des cultures collaboration mil à chandelle caractéristique génomique http://aims.fao.org/aos/agrovoc/c_13199 http://aims.fao.org/aos/agrovoc/c_1374567058134 http://aims.fao.org/aos/agrovoc/c_29554 http://aims.fao.org/aos/agrovoc/c_6520 http://aims.fao.org/aos/agrovoc/c_27639 http://aims.fao.org/aos/agrovoc/c_92382 http://aims.fao.org/aos/agrovoc/c_49985 http://aims.fao.org/aos/agrovoc/c_1374571087594 http://aims.fao.org/aos/agrovoc/c_33952 http://aims.fao.org/aos/agrovoc/c_10176 http://aims.fao.org/aos/agrovoc/c_fc567bfb http://aims.fao.org/aos/agrovoc/c_e4e17d1b http://aims.fao.org/aos/agrovoc/c_331060 http://aims.fao.org/aos/agrovoc/c_8355 |
author |
Rhone, Bénédicte Defrance, Dimitri Berthouly-Salazar, Cécile Mariac, Cédric Cubry, Philippe Couderc, Marie Dequincey, Anaïs Assoumane, Aichatou Kane, Ndjido Ardo Sultan, Benjamin Barnaud, Adeline Vigouroux, Yves |
author_facet |
Rhone, Bénédicte Defrance, Dimitri Berthouly-Salazar, Cécile Mariac, Cédric Cubry, Philippe Couderc, Marie Dequincey, Anaïs Assoumane, Aichatou Kane, Ndjido Ardo Sultan, Benjamin Barnaud, Adeline Vigouroux, Yves |
author_sort |
Rhone, Bénédicte |
title |
Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration |
title_short |
Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration |
title_full |
Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration |
title_fullStr |
Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration |
title_full_unstemmed |
Pearl millet genomic vulnerability to climate change in West Africa highlights the need for regional collaboration |
title_sort |
pearl millet genomic vulnerability to climate change in west africa highlights the need for regional collaboration |
url |
http://agritrop.cirad.fr/596801/ http://agritrop.cirad.fr/596801/1/2020_Rhone-etal_NatCom.pdf |
work_keys_str_mv |
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