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In situ deletions reveal regulatory components for expression of an intracellular immune receptor gene and its co-expressed genes in Arabidopsis

文献类型： 外文期刊

作者： Yu, Huiyun 1 ; Yang, Leiyun 2 ; Li, Zhan 2 ; Sun, Feng 1 ; Li, Bo 3 ; Guo, Shengsong 2 ; Wang, Yong-Fei 4 ; Zhou, Tong 1 ; Hua, Jian 2 ;

作者机构： 1.Jiangsu Acad Agr Sci, Inst Plant Protect, Key Lab Food Qual & Safety, Nanjing, Jiangsu, Peoples R China

2.Cornell Univ, Sch Integrat Plant Sci, Plant Biol Sect, Ithaca, NY USA

3.Fudan Univ, Inst Translat Brain Res, Huashan Hosp, Dept Neurosurg,MOE Frontiers Ctr Brain Sci, Shanghai, Peoples R China

4.Chinese Acad Sci, Shanghai Inst Plant Physiol & Ecol, Natl Key Lab Plant Mol Genet, Shanghai, Peoples R China

5.Int Rice Res Inst & Jiangsu Acad Agr Sci Joint La, Nanjing, Jiangsu, Peoples R China

关键词： Arabidopsis thaliana; cis-acting elements; co-expression; CRISPR; expression; NLR; SNC1

期刊名称：PLANT CELL AND ENVIRONMENT （ 影响因子：7.947； 五年影响因子：8.452 ）

ISSN： 0140-7791

年卷期：

页码：

收录情况： SCI

摘要： Intracellular immune receptor nucleotide-binding leucine-rich repeats (NLRs) are highly regulated transcriptionally and post-transcriptionally for balanced plant defence and growth. NLR genes often exist in gene clusters and are usually co-expressed under various conditions. Despite of intensive studies of regulation of NLR proteins, cis-acting elements for NLR gene induction, repression or co-expression are largely unknown due to a larger than usual cis-region for their expression regulation. Here we used the CRISPR/Cas9 genome editing technology to generate a series of in situ deletions at the endogenous location of a NLR gene SNC1 residing in the RPP5 gene cluster. These deletions that made in the wild type and the SNC1 constitutive expressing autoimmune mutant bon1 revealed both positive and negative cis-acting elements for SNC1 expression. Two transcription factors that could bind to these elements were found to have an impact on the expression of SNC1. In addition, co-expression of two genes with SNC1 in the same cluster is found to be mostly dependent on the SNC1 function. Therefore, SNC1 expression is under complex local regulation involving multiple cis elements and SNC1 itself is a critical regulator of gene expression of other NLR genes in the same gene cluster. Summary statement In situ deletion series made by CRISPR/Cas9 genome editing identified cis-regulatory elements and putative transcription factors for the expression of an intracellular immune receptor NLR gene SNC1 and revealed an important role of SNC1 in NLR gene co-expression.

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[1]In situ deletions reveal regulatory components for expression of an intracellular immune receptor gene and its co-expressed genes in Arabidopsis. Yu, Huiyun,Sun, Feng,Zhou, Tong,Yu, Huiyun,Yang, Leiyun,Li, Zhan,Guo, Shengsong,Hua, Jian,Li, Bo,Wang, Yong-Fei,Zhou, Tong. 2022

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