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Engineering Plant Immunity: Using CRISPR/Cas9 to Generate Virus Resistance

Bibliography:

Syed Shan-e-Ali Zaidi, Manal Tashkandi​, Shahid Mansoor and Magdy M. Mahfouz. Engineering Plant Immunity: Using CRISPR/Cas9 to Generate Virus Resistance. Frontiers in Plant Science. https://doi.org/10.3389/fpls.2016.01673

Authors:

Syed Shan-e-Ali Zaidi, Manal Tashkandi, Shahid Mansoor and Magdy M. Mahfouz

Keywords:

Plant virus, CRISPR/Cas9, genome engineering, geminivirus, virus resistance

Year:

2016

Abstract:

​Plant viruses infect many economically important crops, including wheat, cotton, maize, cassava, and other vegetables. These viruses pose a serious threat to agriculture worldwide, as decreases in cropland area per capita may cause production to fall short of that required to feed the increasing world population. Under these circumstances, conventional strategies can fail to control rapidly evolving and emerging plant viruses. Genome-engineering strategies have recently emerged as promising tools to introduce desirable traits in many eukaryotic species, including plants. Among these genome engineering technologies, the CRISPR (clustered regularly interspaced palindromic repeats)/CRISPR-associated 9 (CRISPR/Cas9) system has received special interest because of its simplicity, efficiency, and reproducibility. Recent studies have used CRISPR/Cas9 to engineer virus resistance in plants, either by directly targeting and cleaving the viral genome, or by modifying the host plant genome to introduce viral immunity. Here, we briefly describe the biology of the CRISPR/Cas9 system and plant viruses, and how different genome engineering technologies have been used to target these viruses. We further describe the main findings from recent studies of CRISPR/Cas9-mediated viral interference and discuss how these findings can be applied to improve global agriculture. We conclude by pinpointing the gaps in our knowledge and the outstanding questions regarding CRISPR/Cas9-mediated viral immunity.

ISSN:

1663-4365