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Related Experiment Video

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Breeding by Design for Functional Rice with Genome Editing Technologies

Breeding by Design for Functional Rice with Genome Editing Technologies

Published on: January 3, 2025

Stressed genomics-bringing relief to rice fields.

¹Plant Breeding, Genetics and Biotechnology Division, International Rice Research Institute, DAPO Box 7777, Manila, Philippines. h.leung@cgiar.org

Current Opinion in Plant Biology

|February 26, 2008

Summary

Rice genetics research, using full-genome sequencing, identifies genes for durable resistance to stresses like bacterial blight and environmental challenges. Discoveries are rapidly converted into improved rice varieties for agriculture.

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Identifying Mutations by High Resolution Melting in a TILLING Population of Rice

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Published on: September 2, 2019

Area of Science:

Plant genetics
Agricultural science
Molecular biology

Background:

Rice faces significant yield losses from biotic (e.g., bacterial blight) and abiotic stresses (submergence, salinity, drought).
Understanding genotype x environment interactions is crucial for developing resilient crop varieties.
Full-genome sequencing provides powerful tools for dissecting complex stress-tolerance traits in rice.

Purpose of the Study:

To leverage advances in rice genetics and genomics to address challenges posed by biotic and abiotic stresses.
To identify and characterize genetic factors conferring resistance and tolerance in rice.
To accelerate the translation of genetic discoveries into practical agricultural applications.

Main Methods:

Genome-wide association studies (GWAS) and quantitative trait locus (QTL) mapping.
Analysis of host-pathogen interactions for disease resistance.
Marker-assisted introgression of beneficial genes into elite rice cultivars.
Parallel whole-genome expression and mapping analyses.

Main Results:

Identification of large-effect QTLs for tolerance to submergence, salinity, and drought.
Development of predictive strategies for durable resistance by combining specific genes, exemplified by bacterial blight.
Successful marker-aided incorporation of a submergence tolerance gene into popular rice varieties.

Conclusions:

Advances in rice genetics and genomics are yielding solutions for stress management in agriculture.
Combining genetic knowledge of host-pathogen interactions and QTLs enables durable resistance and tolerance.
Accelerating product development requires using proven genotypes and multi-environment testing.