Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2020, Vol. 36 ›› Issue (22): 100-105.doi: 10.11924/j.issn.1000-6850.casb20191000746

Special Issue: 生物技术 油料作物 园艺

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A Rapid Identification Method of Glyphosate Resistant Transgenic Rapeseed

Zhang Yaoting1,2(), Li Mei2, Guo Yiming2, Liu Xinhong2, Wang Tonghua2()   

  1. 1Longping Branch, Graduate School of Hunan University, Changcha 410125
    2Crop Research Institute of Hunan Academy of Agricultural Sciences, Changsha 410125
  • Received:2019-10-22 Revised:2020-04-17 Online:2020-08-05 Published:2020-07-22
  • Contact: Wang Tonghua E-mail:1148278951@qq.com;wangtonghua2004@163.com

Abstract:

The paper aims to establish a rapid method for identifying glyphosate resistant transgenic rapeseed. In this study, glyphosate resistant transgenic lines and their segregating populations were used as research materials. Seed germination was carried out using filter paper plates with different glyphosate concentration to observe the responses of immature embryos of resistant and non-resistant materials. Resistance verification was performed by PCR and seedling glyphosate treatment. The results showed that the radicle root hair growth of the resistant material treated with 0.5-1 g/L glyphosate solution was normal, while the non-resistant material radicle growth was slow and smooth without root hair; using this concentration to treat BC1 and F2 segregating population, the isolation ratio of the traits of the young embryos fit 1:1 and 3:1, and the genomic PCR amplification results of the young embryos were co-segregated with the root hairs. The results showed that the resistant and non-resistant materials of glyphosate resistant transgenic rapeseed could be effectively distinguished by observing the presence or absence of immature root hairs after germination treatment of glyphosate at the above concentration. The identification method established in this study can not only identify glyphosate resistant transgenic rapeseed materials quickly and accurately while ensuring the survival of the materials, but also provide technical reference for the breeding and seed purity identification of glyphosate resistant transgenic rapeseed.

Key words: genetically modified rapeseed, glyphosate, PCR, glyphosate resistance, detection

CLC Number: