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园艺学报 ›› 2021, Vol. 48 ›› Issue (11): 2211-2226.doi: 10.16420/j.issn.0513-353x.2020-0913

• 研究论文 • 上一篇    下一篇

番茄5个抗病基因KASP分型技术体系的建立与应用

王鹏1, 田哲娟1, 康忱1, 李亚栋1, 王洪乐2, 杨超沙1, 邙光伟2, 康亮2, 范庆杰2, 吴志明1,*()   

  1. 1河北省农林科学院经济作物研究所,石家庄 050051
    2河北省承德市农林科学院,河北承德 067055
  • 收稿日期:2021-05-24 修回日期:2021-08-06 发布日期:2021-12-02
  • 通讯作者: 吴志明 E-mail:zhiming71@126.com
  • 基金资助:
    河北省科技厅重点研发计划现代种业科技专项(3006031);河北省农林科学院创新工程项目(2019-3-1-2);河北省农林科学院创新工程项目(2019-4-8-5);承德市科技支撑计划项目(202001B017)

Establishment and Application of a Tomato KASP Genotyping System Based on Five Disease Resistance Genes

WANG Peng1, TIAN Zhejuan1, KANG Chen1, LI Yadong1, WANG Hongle2, YANG Chaosha1, MANG Guangwei2, KANG Liang2, FAN Qingjie2, WU Zhiming1,*()   

  1. 1Institute of Cash Crops,Hebei Academy of Agriculture and Forestry Sciences,Shijiazhuang 050051,China
    2Chengde Academy of Agriculture and Forestry Sciences,Chengde,Hebei 067055,China
  • Received:2021-05-24 Revised:2021-08-06 Published:2021-12-02
  • Contact: WU Zhiming E-mail:zhiming71@126.com

摘要:

竞争性等位基因特异性PCR(Kompetitive allele specific PCR,KASP)是一种基于单核酸多态性(Single nucleotide polymorphism,SNP)的新型基因分型技术,建立高效、经济的番茄抗病基因的KASP分型技术对促进抗病品种的选育具有重要意义。本研究中设计了抗番茄黄花曲叶病毒(tomato yellow leaf curl virus,TYLCV)病基因Ty-1和抗根结线虫(root-knot nematode,RKN)基因Mi-1的KASP引物,结合已报道的抗番茄花叶病毒(tomato mosaic virus,ToMV)病基因Tm-22、抗番茄斑萎病毒(tomato spotted wilt virus,TSWV)病基因Sw-5和抗镰刀菌颈腐根腐(fusarium crown and root rot,FCRR)病基因Frl的KASP引物,进行了番茄抗病基因KASP分型检测技术研究。利用不同基因型的番茄抗病种质,对影响KASP的反应体积、DNA模板浓度、引物浓度及反应循环数等进行了优化,建立了最优番茄抗病基因的KASP分型检测技术体系。研究结果显示,优化的KASP体系与Ty-1Mi-1Tm-22Sw-5Frl基因的PCR分子标记检测结果相一致。所用的KASP反应体系不但能节省试剂,且具有高准确性和强稳定性的优点,因此其可以广泛应用于番茄抗病基因的鉴定、遗传多样性和基因定位等研究,为番茄种质资源分子标记辅助的抗病性鉴定、抗原的快速筛选及利用提供技术支持和理论依据。

关键词: 番茄, 种质资源, KASP技术, 基因分型, Ty-1, Mi-1, Tm-22, Sw-5, Frl

Abstract:

Kompetitive allele specific PCR(KASP)is a novel genotyping tool based on single nucleotide polymorphism(SNP). An efficient and economical resistance gene KASP genotyping method is very useful in tomato breeding program. In this study,KASP primer pairs of five tomato disease resistance genes were used to establish a KASP genotyping system,among them the primer sets for tomato yellow leaf curl virus(TYLCV)resistance gene Ty-1 and root-knot nematode(RKN)resistance gene Mi-1 were designed in this study,and KASP primers of tomato mosaic virus(ToMV)resistance gene Tm-22,tomato spotted wilt virus(TSWV)resistance gene Sw-5 and fusarium crown and root rot(FCRR)resistance gene Frl were from previous publications. By using tomato germplasms containing different disease resistance genes,the KASP genotyping system was optimized for its template reaction volume,DNA concentration,primer concentration and the number of PCR cycles. Detection results using the optimized KASP method were consistent with the PCR detection results of molecular markers of five disease resistance genes. The KASP genotyping system developed in this study not only can save cost,but also possesses high accuracy and stability. Therefore,it can be widely used in identification of tomato disease resistance genes,genetic diversity analysis and gene mapping,which provides technical supports and theoretical basis for the tomato molecular marker-assisted disease resistance identification,rapid screening and utilization of resistance germplasms for tomato breeding.

Key words: tomato, germplasm, KASP, genotyping, Ty-1, Mi-1, Tm-22, Sw-5, Frl

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