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Redesigning crop varieties to win the race between climate change and food security

Molecular Plant 2023年第10期16卷 1590-1611页

作者： Kevin V.Pixley Jill E.Cairns Santiago Lopez-Ridaura Chris O.Ojiewo Maryam Abba dawud Inoussa Drabo Taye Mindaye Baloua Nebie Godfrey Asea Biswanath Das Happy Daudi Haile desmae Benoit Joseph Batieno Ousmane Boukar Clare T.M.Mukankusi Stanley T.Nkalubo Sarah J.Hearne Kanwarpal S.Dhugga Harish Gandhi Sieglinde Snapp Ernesto Adair Zepeda-Villarreal International Maize and Wheat Improvement Center(CIMMYT) TexcocoMexico International Maize and Wheat Improvement Center(CIMMYT) HarareZimbabwe International Maize and Wheat Improvement Center(CIMMYT) NairobiKenya Lake Chad Research Institute(LCRI) MaidiguriNigeria International Maize and Wheat Improvement Center(CIMMYT) DakarSenegal Ethiopian Institute of Agricultural Research(EIAR) Addis AbabaEthiopia National Agricultural Research Organization(NARO) KampalaUganda Tanzania Agricultural Research Institute(TARI) NaliendeleTanzania Institut de l'Environnement et de Recherches Agricoles(INERA) OuagadougouBurkina Faso International Institute of Tropicl Agriculture(IITA) KanoNigeria Alliance of Bioversity International and CIAT KampalaUganda

Climate change poses daunting challenges to agricultural production and food *** temperatures,shifting weather patterns,and more frequent extreme events have already demonstrated their effects on local,regional,and global agricultural *** varieties that withstand climate-related stresses and are suitable for cultivation in innovative cropping systems will be crucial to maximize risk avoidance,productivity,and profitability under climate-changed *** surveyed 588 expert stakeholders to predict current and novel traits that may be essential for future pearl millet,sorghum,maize,groundnut,cowpea,and common bean varieties,particularly in sub-Saharan *** then review the current progress and prospects for breeding three prioritized future-essential traits for each of these *** predict that most current breeding priorities will remain important,but that rates of genetic gain must increase to keep pace with climate challenges and consumer ***,the predicted future-essential traits include innovative breeding targets that must also be prioritized;for example,(1)optimized rhizosphere microbiome,with benefits for P,N,and water use efficiency,(2)optimized performance across or in specific cropping systems,(3)lower nighttime respiration,(4)improved stover quality,and(5)increased early *** further discuss cutting-edge tools and approaches to discover,validate,and incorporate novel genetic diversity from exotic germplasm into breeding populations with unprecedented precision,accuracy,and *** conclude that the greatest challenge to developing crop varieties to win the race between climate change and food security might be our innovativeness in defining and boldness to breed for the traits of tomorrow.

关键词： climate change food security crop breeding cropping systems expert survey sub-Saharan Africa

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