Domestication-selected COG4-OsbZIP23 module regulates chilling tolerance in rice.

IF 7.5 1区生物学 Q1 CELL BIOLOGY Cell reports Pub Date : 2024-11-10 DOI:10.1016/j.celrep.2024.114965

Shenli Sun, Dongfeng Liu, Wei Luo, Zhitao Li, Jinglei Feng, Yalong Guo, Kang Chong, Yunyuan Xu

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Abstract

Identifying excellent natural variations is the foundation for breeding. Several major genes of quantitative trait loci for chilling tolerance at the seedling stage (qCTS) have been identified. However, less is known about the dual elite modules for the tolerance. Here, we report the major gene of qCTS1-2, Chilling-tolerance in Geng/japonica rice 4 (COG4), encoding the transcription factor ENAC1, coupled with OsbZIP23 to positively regulate chilling tolerance. The haplotype analysis and geographical distribution show that most of the chilling-tolerant japonica varieties carry Var9(CT) at -317 in COG4 (COG4^jap). The COG4^jap promoter is preferentially bound by cold-induced OsbZIP23 to cause a higher expression of COG4^jap compared to COG4^ind, which promotes multiple pathways for the tolerance. Both COG4^jap and OsbZIP23^jap are artificially selected and retained in japonica varieties during domestication. These results not only reveal the regulatory mechanism of OsbZIP23^jap-COG4^jap module but also provide valuable variations for molecular design breeding.

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驯化选择的 COG4-OsbZIP23 模块调控水稻的耐寒性。

确定优良的自然变异是育种的基础。目前已经确定了苗期耐寒性（qCTS）数量性状位点的几个主要基因。然而，人们对耐寒性的双精英模块知之甚少。在此，我们报告了qCTS1-2的主要基因--耿/粳稻耐寒性4（COG4），该基因编码转录因子ENAC1，与OsbZIP23共同正向调控耐寒性。单倍型分析和地理分布表明，大多数耐寒粳稻品种在 COG4（COG4jap）的 -317 处携带 Var9(CT)。与 COG4ind 相比，COG4jap 启动子优先与冷诱导的 OsbZIP23 结合，导致 COG4jap 的表达量更高，从而促进多种途径的耐寒性。在粳稻品种的驯化过程中，COG4jap和OsbZIP23jap都被人工选择并保留下来。这些结果不仅揭示了OsbZIP23jap-COG4jap模块的调控机制，而且为分子设计育种提供了有价值的变异。

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来源期刊

Cell reports CELL BIOLOGY-

CiteScore

13.80

自引率

1.10%

发文量

1305

审稿时长

77 days

期刊介绍： Cell Reports publishes high-quality research across the life sciences and focuses on new biological insight as its primary criterion for publication. The journal offers three primary article types: Reports, which are shorter single-point articles, research articles, which are longer and provide deeper mechanistic insights, and resources, which highlight significant technical advances or major informational datasets that contribute to biological advances. Reviews covering recent literature in emerging and active fields are also accepted. The Cell Reports Portfolio includes gold open-access journals that cover life, medical, and physical sciences, and its mission is to make cutting-edge research and methodologies available to a wide readership. The journal's professional in-house editors work closely with authors, reviewers, and the scientific advisory board, which consists of current and future leaders in their respective fields. The advisory board guides the scope, content, and quality of the journal, but editorial decisions are independently made by the in-house scientific editors of Cell Reports.