Scientists have identified a gene that helps rice plants produce grain even during drought conditions.
The gene is the blueprint for a protein that makes the plant’s root tips more responsive to the pull of gravity.
Rice plants with the gene send their roots deeper into the soil than those without it. They can access water farther underground.
The gene is called DRO1, short for “deeper rooting.”
The Japanese researchers found that, under moderate drought conditions, plants without DRO1 …
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