Biotechnology Bulletin ›› 2023, Vol. 39 ›› Issue (6): 12-30.doi: 10.13560/j.cnki.biotech.bull.1985.2022-1008

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Applications and Perspectives of Radiation Mutagenesis in Woody Plant Breeding

LI Yu-ling1(), MAO Xin2, ZHANG Yuan-shuai3, DONG Yuan-fu3, LIU Cui-lan1, DUAN Chun-hua1, MAO Xiu-hong1()   

  1. 1. Shandong Academy of Forestry, Jinan 250014
    2. Henan Agricultural University, Zhengzhou 450000
    3. Feixian State-owned Daqingshan Forest Farm, Jining 273400
  • Received:2022-08-22 Online:2023-06-26 Published:2023-07-07
  • Contact: MAO Xiu-hong E-mail:liyuling500@163.com;xiuhongmao@shandong.cn

Abstract:

Radiation mutagenesis plays an important role in the selection and genetic improvement of new plant varieties. In order to provide breeders with a rapid and accurate picture of the research and application of radiation mutagenesis on woody plants, based on the CNKI database and the official website of the International Atomic Energy Agency, a statistical analysis of the published literature related to radiation mutagenesis in woody plants after 2000 and the released radiation mutant species were carried out. A comprehensive review was sorted out from the aspects of radiation mutagenesis mechanism, factors affecting radiation efficiency, mutant identification and isolation, radiation breeding achievements in this field. The result shows that the mechanism of radiation mutagenesis is still unclear, the key factor affecting radiation efficiency is the appropriate irradiation dose, followed by attention to the sensitive variability of the irradiated material, and mutant identification methods are phenotypic, physiological-biochemical, cytological and molecular markers, which are used in combination for more accurate results. Overall, the number of radiation-breeding woody plant varieties is small and tends to decline gradually. The progress of radiation breeding research in woody plants is reviewed, and solutions to the problems of radiation mutagenesis, such as low mutagenesis efficiency, poor control of mutation direction and imperfect mutant identification methods, are given, and the future directions of radiation breeding research are also prospected, aiming to provide reference and new ideas for plant radiation breeding research and application.

Key words: radiation mutagenesis, woody plants, breeding, mutations, mutagenesis mechanism