Molecular Breeding for Improving Salinity Tolerance in Rice: Recent Progress and Future Prospects

Document Type

Article

Publication Date

1-1-2021

Abstract

Salinity is a major environmental constraint affecting rice production worldwide. Although rice is sensitive to salt stress, abundant natural variation in world germplasm offers unique opportunities to improve its adaptation, productivity, and yield stability in salt-affected areas. Despite substantial understanding of the salt-tolerance mechanisms, which has been accomplished over the last few decades, progress in translating the research outcomes to farmers' field is modest. Recent advances in genomics have provided powerful molecular breeding tools to expedite designing of salt-tolerant rice varieties with yield stability. New promising tools, such as genomic selection, genome-wide association analysis, and genome editing, along with high-throughput phenomics, are expected to revolutionize rice-breeding programs by facilitating elucidation of complex mechanisms underlying salt adaptation, discovery, characterization, and manipulation of novel gene/QTLs. The success of developing rice cultivars with enhanced salinity tolerance will require harnessing new innovative genomics technologies to expand the genetic base of breeding materials by exploring diverse germplasm, including landraces and wild species, for novel genes or traits contributing towards salt tolerance.

Publication Source (Journal or Book title)

Molecular Breeding for Rice Abiotic Stress Tolerance and Nutritional Quality

First Page

26

Last Page

52

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