生命科学

TALE靶标基因与农作物广谱持久抗病育种

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  • 上海交通大学 农业与生物学院,上海 200240
徐夏萌(1992-),女,河南省三门峡市人,博士生,从事分子植物病理学研究.

收稿日期: 2021-02-10

  网络出版日期: 2021-04-09

基金资助

国家自然科学基金重点项目(31830072),国家重点研发计划(2016YFD0100601),重大转基因专项资助(2016ZX08001002)

TALE Targets for Durable Broad-Spectrum Resistance Breeding in Crops

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  • School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai 200240, China

Received date: 2021-02-10

  Online published: 2021-04-09

摘要

为了揭示黄单胞菌与植物间互作的遗传学基础,培育广谱持久抗病的农作物,本文对这一领域重要研究进展进行了综述.首先指出了黄单胞菌引起植物病害的严重性,分析了黄单胞菌与植物互作如何导致植物抗病或感病,归纳了TALE蛋白主要作用植物的靶标类型,分析了植物基础转录因子TFIIA与NLR类R基因在植物抗病性中的重要性,认为基因编辑TALE蛋白的效应子结合元件(EBE)是未来作物广谱持久抗病育种的重要方向.

本文引用格式

徐夏萌, 徐正银, 李颖, 阎依超, 邹丽芳, 陈功友 . TALE靶标基因与农作物广谱持久抗病育种[J]. 上海交通大学学报, 2021 , 55(Sup.1) : 36 -38 . DOI: 10.16183/j.cnki.jsjtu.2021.S1.035

Abstract

To reveal the genetic basis of the interaction between Xanthomonas pathogens and their host plants for breeding durable broad-spectrum resistance crops, the recent important progress in these fields are summarized. The devastation of plant diseases caused by Xanthomonas species is determined by Xanthomonas T3SS effectors, mainly transcription activator-like effectors (TALEs), which target effector-binding element (EBE) sites of either crop resistance (R) or susceptibility (S) genes. Then, the five types of TALE-targets in plants are briefly stated and the importance of plant general transcription factors TFIIA in the activation of NLR-type R genes in plant resistance is stressed. Finally, that gene-editing of EBEs of R or S genes is proposed to be the new strategy for resistance breeding to control crop diseases in the future.

参考文献

[1]XU Z, XU X, GONG Q, et al. Engineering broad-spectrum bacterial blight resistance by simultaneously disrupting variable TALE-binding elements of multiple susceptibility genes in rice[J]. Molecular Plant, 2019, 12(11): 1434-1446. [2]MA W, ZOU L, ZHIYUAN J I, et al. Xanthomonas oryzae pv. oryzae TALE proteins recruit OsTFIIAγ1 to compensate for the absence of OsTFIIAγ5 in bacterial blight in rice[J]. Molecular Plant Pathology, 2018, 19(10): 2248-2262. [3]JI Z, JI C, LIU B, et al. Interfering TAL effectors of Xanthomonas oryzae neutralize R-gene-mediated plant disease resistance[J]. Nature Communications, 2016, 7: 13435.
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