J Integr Plant Biol. ›› 2020, Vol. 62 ›› Issue (3): 269-286.DOI: 10.1111/jipb.12793

Special Issue: Biotechnology Genome editing

• Invited Expert Reviews • Previous Articles     Next Articles

Application and future perspective of CRISPR/Cas9 genome editing in fruit crops

Junhui Zhou1, Dongdong Li1,2, Guoming Wang1,3, Fuxi Wang1, Merixia Kunjal1, Dirk Joldersma1 and Zhongchi Liu1*   

  1. 1Department of Cell Biology and Molecular Genetics, University of Maryland, College Park, MD 20742, USA
    2Zhejiang Key Laboratory for Agri-Food Processing, Zhejiang University, Hangzhou 310058, China
    3State Key Laboratory of Crop Genetics and Germplasm Enhancement, Centre of Pear Engineering Technology Research, Nanjing Agricultural University, Nanjing 210095, China

    *Correspondence:
    Email: Zhongchi Liu(zliu@umd.edu)
  • Received:2018-12-31 Accepted:2019-02-18 Online:2019-02-21 Published:2020-03-01

Abstract:

Fruit crops, including apple, orange, grape, banana, strawberry, watermelon, kiwifruit and tomato, not only provide essential nutrients for human life but also contribute to the major agricultural output and economic growth of many countries and regions in the world. Recent advancements in genome editing provides an unprecedented opportunity for the genetic improvement of these agronomically important fruit crops. Here, we summarize recent reports of applying CRISPR/Cas9 to fruit crops, including efforts to reduce disease susceptibility, change plant architecture or flower morphology, improve fruit quality traits, and increase fruit yield. We discuss challenges facing fruit crops as well as new improvements and platforms that could be used to facilitate genome editing in fruit crops, including dCas9‐base‐editing to introduce desirable alleles and heat treatment to increase editing efficiency. In addition, we highlight what we see as potentially revolutionary development ranging from transgene‐free genome editing to de novo domestication of wild relatives. Without doubt, we now see only the beginning of what will eventually be possible with the use of the CRISPR/Cas9 toolkit. Efforts to communicate with the public and an emphasis on the manipulation of consumer‐friendly traits will be critical to facilitate public acceptance of genetically engineered fruits with this new technology.

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