文献类型： 外文期刊
作者： Shahriari, Zolfaghar 1 ; Su, Xiaoxia 1 ; Zheng, Kuanyu 1 ; Zhang, Zhongkai 1 ;
作者机构： 1.Yunnan Acad Agr Sci, Biotechnol & Germplasm Resources Res Inst, Yunnan Seed Lab, 2238 Beijing Rd, Kunming 650205, Peoples R China
2.Agr Res Educ & Extens Org AREEO, Fars Agr & Nat Resources Res & Educ Ctr, Crop & Hort Sci Res Dept, Shiraz 71555, Iran
关键词： virus resistance gene; RNAi; tomato breeding; CRISPR-Cas; genome editing
期刊名称：INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES （ 影响因子：5.6； 五年影响因子：6.2 ）
ISSN： 1661-6596
年卷期： 2023 年 24 卷 20 期
页码：
收录情况： SCI
摘要： Plant viruses are the main pathogens which cause significant quality and yield losses in tomato crops. The important viruses that infect tomatoes worldwide belong to five genera: Begomovirus, Orthotospovirus, Tobamovirus, Potyvirus, and Crinivirus. Tomato resistance genes against viruses, including Ty gene resistance against begomoviruses, Sw gene resistance against orthotospoviruses, Tm gene resistance against tobamoviruses, and Pot 1 gene resistance against potyviruses, have been identified from wild germplasm and introduced into cultivated cultivars via hybrid breeding. However, these resistance genes mainly exhibit qualitative resistance mediated by single genes, which cannot protect against virus mutations, recombination, mixed-infection, or emerging viruses, thus posing a great challenge to tomato antiviral breeding. Based on the epidemic characteristics of tomato viruses, we propose that future studies on tomato virus resistance breeding should focus on rapidly, safely, and efficiently creating broad-spectrum germplasm materials resistant to multiple viruses. Accordingly, we summarized and analyzed the advantages and characteristics of the three tomato antiviral breeding strategies, including marker-assisted selection (MAS)-based hybrid breeding, RNA interference (RNAi)-based transgenic breeding, and CRISPR/Cas-based gene editing. Finally, we highlighted the challenges and provided suggestions for improving tomato antiviral breeding in the future using the three breeding strategies.
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