数字农科院2.0

The superior allele LEA12OR in wild rice enhances salt tolerance and yield

文献类型： 外文期刊

作者： Ge, Yuwei;Chen, Gaoming;Cheng, Xinran;Li, Chao;Tian, Yunlu;Chi, Wenchao;Li, Jin;Dai, Zhaoyang;Wang, Chunyuan;Duan, Erchao;Liu, Yan;Sun, Zhiguang;Li, Jingfang;Wang, Baoxiang;Xu, Dayong;Sun, Xianjun;Zhang, Hui;Zhang, Wenhua;Wang, Chunming;Wan, Jianmin

作者机构：

关键词： rice (Oryza sativa L.);wild rice (Oryza rufipogon Griff.);superior allele;salt tolerance (ST);late embryogenesis abundant (LEA) protein;abscisic acid (ABA)

期刊名称： PLANT BIOTECHNOLOGY JOURNAL

ISSN： 1467-7644

年卷期： 2024 年

页码：

收录情况： SCIE（2024版）

摘要： Soil salinity has negative impacts on food security and sustainable agriculture. Ion homeostasis, osmotic adjustment and reactive oxygen species scavenging are the main approaches utilized by rice to resist salt stress. Breeding rice cultivars with high salt tolerance (ST) and yield is a significant challenge due to the lack of elite alleles conferring ST. Here, we report that the elite allele LEA12(OR), which encodes a late embryogenesis abundant (LEA) protein from the wild rice Oryza rufipogon Griff., improves osmotic adjustment and increases yield under salt stress. Mechanistically, LEA12(OR), as the early regulator of the LEA12(OR)-OsSAPK10-OsbZIP86-OsNCED3 functional module, maintains the kinase stability of OsSAPK10 under salt stress, thereby conferring ST by promoting abscisic acid biosynthesis and accumulation in rice. The superior allele LEA12(OR )provides a new avenue for improving ST and yield via the application of LEA12(OR) in current rice through molecular breeding and genome editing.

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