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- Title
A point mutation in VIG1 boosts development and chilling tolerance in rice.
- Authors
Xiong, Dunpin; Wang, Juan; Wang, Ruci; Wang, Yueming; Li, Yi; Sun, Ge; Yao, Shanguo
- Abstract
The rice paddy-direct seeding system has been widely adopted due to its low cost and convenience, whereas its application is mainly constrained by low seedling vigor, cold sensitivity, eventually resulting in reduced grain yield. Here, we show vig1a and vig1b, two allelic mutants of OsbZIP01, that both demonstrate greatly enhanced seedling vigor and chilling tolerance but differ in final grain production. The vig1a phenotype can be obtained via simultaneous mutation of the genes OsbZIP01 and OsbZIP18, or by selectively manipulating the basic region of OsbZIP01. Destroying the leucine zipper region of OsbZIP01 in vig1a turns vig1a to be vig1b. Further analysis reveals that OsbZIP01 and OsbZIP18 function cooperatively in diverse crucial biological programs that determine seedling establishment, chilling tolerance, and grain yield through their interactions. These findings provide a strategy toward simultaneously improving seedling vigor, chilling tolerance, and grain yield for rice production. Very few genes are involved in simultaneous regulation of seedling vigor, cold tolerance and grain yield in rice. Here, the authors report OsbZIP01 and OsbZIP18 function cooperatively in determining seedling establishment, chilling tolerance, and grain yield in rice.
- Publication
Nature Communications, 2024, Vol 15, Issue 1, p1
- ISSN
2041-1723
- Publication type
Article
- DOI
10.1038/s41467-024-52510-3