利用转基因技术和基因编辑技术改良小麦进展
作者:
作者单位:

中国农业科学院作物科学研究所,北京 100081

作者简介:

研究方向为小麦分子育种,E-mail: 2424154799@qq.com

通讯作者:

叶兴国,研究方向为小麦遗传育种,E-mail: yexingguo@caas.cn

中图分类号:

基金项目:

国家自然科学基金面上项目(31971945)


Progresses on Wheat Improvement by Using Transgenic and Genome Editing Technologies
Author:
Affiliation:

Institute of Crop Sciences, Chinese Academy of Agricultural Sciences, Beijing 100081

Fund Project:

Foundation project: National Natural Science Foundation of China (31971945)

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    摘要:

    小麦籽粒营养丰富,其面粉可制作成多种食品,是全球超过三分之一人口的主食。随着病虫害加重、环境恶化(干旱、高温、盐碱)等生物和非生物逆境的影响,全球小麦安全生产受到的威胁越来越大。为保障全球粮食安全供给和人民生活对优质产品的需要,提高小麦产量和改进小麦品质仍将是重要的育种目标,要求不断创新育种技术和种质资源。近10年来,转基因和基因编辑等生物技术发展迅速,逐步在小麦改良中发挥重要作用。建立了小麦高效遗传转化体系和基因编辑体系,利用农杆菌转化模式基因型的转化效率50%以上,利用CRISPR/Cas9编辑部分基因的编辑效率40%~70%,利用再生相关基因基本克服了转基因和基因编辑研究中基因型的依赖性。通过转基因和基因编辑改良了小麦抗病性、抗逆性、特性品质、产量潜力和生长发育等多个性状,创制了抗白粉病、条锈病、赤霉病、花叶病毒病、穗发芽,以及耐旱、耐盐、低醇溶蛋白、高谷蛋白、高千粒重和雄性不育系、单倍体诱导系等小麦新材料,丰富了小麦种质资源。本研究旨在综述小麦转基因和基因编辑的最新研究进展,并探讨目前研究中存在的问题和可能的解决途径。

    Abstract:

    Wheat grain, with rich nutrition and various end-uses in markets, provides diets in over one-third of the global human population. However, with the increasing influence of biological and abiotic stresses, such as threats of diseases and pests, environmental damages of drought, high temperature and salinization, the sustainability of global wheat production is under increasing threats. In order to ensure the global food security supply and demands for high quality products, the desirable increases on wheat production and quality require to the constantly developing of new breeding methods and germplasm resources used for wheat breeding. In the past decade, significant progress on plant biotechnologies such as transgenic study and genome editing has been achieved, and gradually applied in wheat genetic improvement. To date, the efficient systems for wheat genetic transformation and genome editing have been established, in which the transformation efficiency for the model genotypes mediated by Agrobacterium is higher than 50% and the editing efficiencies of some target genes via CRISPR/Cas9 reach to 40%-70%. The genotype independency in wheat transformation and genome editing has been overcome almost. Some of wheat traits including disease resistance, stress tolerance, quality feature, yield potential, and growth and development regulation have been modified by using transgenic and gene editing methodologies; many new wheat genetic stocks showing disease resistances to powdery mildew, rusts, scab and yellow mosaic virus, tolerances to pre-harvest sprouting, drought and salt, low gliadin content, high gluten content, male sterility and haploid induction ability were created by the requirement of wheat improvement. This review aims to summarize the latest research progresses on transgene and genome editing in wheat, and to explore the current problems and possible solutions.

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于美,唐华丽,叶兴国.利用转基因技术和基因编辑技术改良小麦进展[J].植物遗传资源学报,2023,24(1):102-116.

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  • 收稿日期:2022-08-09
  • 最后修改日期:2022-08-21
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  • 在线发布日期: 2023-01-12
  • 出版日期: 2023-01-12
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