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Review
, 16 (4), 237-51

Genetic Mechanisms of Abiotic Stress Tolerance That Translate to Crop Yield Stability

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Review

Genetic Mechanisms of Abiotic Stress Tolerance That Translate to Crop Yield Stability

Michael V Mickelbart et al. Nat Rev Genet.

Abstract

Crop yield reduction as a consequence of increasingly severe climatic events threatens global food security. Genetic loci that ensure productivity in challenging environments exist within the germplasm of crops, their wild relatives and species that are adapted to extreme environments. Selective breeding for the combination of beneficial loci in germplasm has improved yields in diverse environments throughout the history of agriculture. An effective new paradigm is the targeted identification of specific genetic determinants of stress adaptation that have evolved in nature and their precise introgression into elite varieties. These loci are often associated with distinct regulation or function, duplication and/or neofunctionalization of genes that maintain plant homeostasis.

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