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A point mutation in *VIG1* boosts development and chilling tolerance in rice

Agriculture

A point mutation in *VIG1* boosts development and chilling tolerance in rice

D. Xiong, J. Wang, et al.

This research by Dunpin Xiong and colleagues reveals groundbreaking insights into rice production by identifying allelic mutants *vigla* and *viglb* of *OsbZIP01*. These mutants enhance seedling vigor and cold tolerance, key for improving grain yield in cost-effective direct seeding systems.

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Playback language: English
Abstract
The rice paddy-direct seeding system, while cost-effective, suffers from low seedling vigor and cold sensitivity, limiting grain yield. This study identifies *vigla* and *viglb*, allelic mutants of *OsbZIP01*, exhibiting enhanced seedling vigor and chilling tolerance, but differing in grain production. *vigla*'s phenotype results from simultaneous mutations in *OsbZIP01* and *OsbZIP18*, or *OsbZIP01*'s basic region manipulation. *OsbZIP01* and *OsbZIP18* cooperatively regulate seedling establishment, chilling tolerance, and grain yield. These findings offer a strategy for simultaneously improving these crucial rice production parameters.
Publisher
Nature Communications
Published On
Sep 18, 2024
Authors
Dunpin Xiong, Juan Wang, Ruci Wang, Yueming Wang, Yi Li, Ge Sun, Shanguo Yao
Tags
rice production
seedling vigor
chilling tolerance
OsbZIP01
allelic mutants

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