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Marker-assisted forward breeding to develop a drought-,bacterial-leaf-blight-, and blast-resistant rice cultivar

Climate change has drastically affected agriculture and is a major challenge to sustainable rice production. Continuous changes in climatic patterns have the potential to threaten the vulnerable world’s food security in many ways including exacerbating major diseases and pests

and creating favorable climatic conditions for the emergence of devastating new diseases and race, increased drought, and other abiotic stresses at various growth stage in critical foodproducing regions. Rice, being an important and most widely consumed cereal crop, is severely affected by biotic and abiotic stresses. The occurrences of multiple abiotic and biotic stresses have demanded development of climate-smart rice by combining quantitative trait loci (QTL) and genes for tolerance or resistance in the high-yielding cultivars to confer a wider range of tolerance or resistance. Enhanced capability of climatesmart cultivars would enable the crop to thrive under adverse environmental conditions. The recent advances in molecular marker technology and genomics have played an important role in developing single- and multiple-stress-tolerant

rice cultivars. The availability of linked and gene-specific markers for QTL and genes for different abiotic and biotic stresses has provided the opportunity to rapidly stack multiple QTL and genes quickly in popular highyielding cultivars.

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Read the full research article below by:

International Rice Research Institute, South Asia Hub, ICRISAT, Patancheru, Hyderabad, India

International Rice Research Institute, South Asia Regional Centre, Varanasi, India

ICAR-Indian Institute of Rice Research, Rajendra Nagar, Hyderabad, India

International Crops Research Institute for the Semi-Arid Tropics, Patancheru, Hyderabad, India

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