Biotechnology Bulletin ›› 2020, Vol. 36 ›› Issue (7): 209-219.doi: 10.13560/j.cnki.biotech.bull.1985.2019-1265

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Breeding of Transgenic Insect-resistant Sugarcane and Strategies for Preventing the Its Resistance to Insects from Loss

FENG Cui-lian, ZHANG Shu-zhen   

  1. Institute of Tropical Bioscience and Biotechnology,CATAS,Sugarcane Research Center,Ministry of Agriculture Key Biotechnology Laboratory for Tropical Crops,Haikou 571101
  • Received:2019-12-26 Online:2020-07-26 Published:2020-07-28

Abstract: Due to the complexity of the sugarcane genome and the lack of insect-resistant germplasm resources,the conventional insect-resistant breeding of sugarcane is far behind other crops. Currently,genetic engineering provides a novel approach for insect-resistant sugarcane breeding. The recent development status of transgenic insect-resistant sugarcane was reviewed via literature collection and sorting combined with the research achievements in our team . First,the new development of transgenic sugarcane transformation system and studying genetic stability of transgenes were introduced,and then the breaks in studying transgenic insect-resistant sugarcane were focused. In particular,the strategies for preventing the insect resistance of transgenic sugarcane from decreasing or even losing by modifying Bt genes and utilizing gene stacking were introduced in detail,which will provide reference for insect-resistant transgenic sugarcane breeding in the future.

Key words: sugarcane, insect-resistant, Bt gene modification, gene stacking, multi-gene transformation