OsRAV1 Regulates Seed Vigor and Salt Tolerance During Germination in Rice.

IF 4.8 1区 农林科学 Q1 AGRONOMY
Rice Pub Date : 2024-09-02 DOI:10.1186/s12284-024-00734-8
Yingbo Gao, Xinyi Zhao, Xin Liu, Chang Liu, Kunming Zhang, Xiaoxiang Zhang, Juan Zhou, Guichun Dong, Youping Wang, Jianye Huang, Zefeng Yang, Yong Zhou, Youli Yao
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引用次数: 0

Abstract

Seed vigor is a complex trait encompassing seed germination, seedling emergence, growth, seed longevity, and stress tolerance, all are crucial for direct seeding in rice. Here, we report that the AP2/ERF transcription factor OsRAV1 (RELATED TO ABI3 AND VP1) positively regulates seed germination, vigor, and salt tolerance. Additionally, OsRAV1 was differently expressed in embryo and endosperm, with the OsRAV1 localized in the nucleus. Transcriptomic analysis revealed that OsRAV1 modulates seed vigor through plant hormone signal transduction and phenylpropanoid biosynthesis during germination. Haplotype analysis showed that rice varieties carrying Hap3 displayed enhanced salt tolerance during seed germination. These findings suggest that OsRAV1 is a potential target in breeding rice varieties with high seed vigor suitable for direct seeding cultivation.

Abstract Image

OsRAV1 在水稻发芽过程中调控种子活力和耐盐性
种子活力是一个复杂的性状,包括种子萌发、出苗、生长、种子寿命和抗逆性,这些都是水稻直播的关键。在此,我们报告了 AP2/ERF 转录因子 OsRAV1(与 ABI3 和 VP1 相关)对种子萌发、活力和耐盐性的正向调节作用。此外,OsRAV1在胚和胚乳中的表达不同,OsRAV1定位于细胞核。转录组分析表明,OsRAV1通过植物激素信号转导和萌发过程中的苯丙类生物合成调节种子活力。单倍型分析表明,携带 Hap3 的水稻品种在种子萌发过程中表现出更强的耐盐性。这些发现表明,OsRAV1 是培育适合直播栽培的高种子活力水稻品种的潜在目标。
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来源期刊
Rice
Rice AGRONOMY-
CiteScore
10.10
自引率
3.60%
发文量
60
审稿时长
>12 weeks
期刊介绍: Rice aims to fill a glaring void in basic and applied plant science journal publishing. This journal is the world''s only high-quality serial publication for reporting current advances in rice genetics, structural and functional genomics, comparative genomics, molecular biology and physiology, molecular breeding and comparative biology. Rice welcomes review articles and original papers in all of the aforementioned areas and serves as the primary source of newly published information for researchers and students in rice and related research.
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