start-ver=1.4 cd-journal=joma no-vol=71 cd-vols= no-issue=4 article-no= start-page=405 end-page=416 dt-received= dt-revised= dt-accepted= dt-pub-year=2021 dt-pub=20211001 dt-online= en-article= kn-article= en-subject= kn-subject= en-title= kn-title=Targeted genome modifications in cereal crops en-subtitle= kn-subtitle= en-abstract= kn-abstract=The recent advent of customizable endonucleases has led to remarkable advances in genetic engineering, as these molecular scissors allow for the targeted introduction of mutations or even precisely predefined genetic modifications into virtually any genomic target site of choice. Thanks to its unprecedented precision, efficiency, and functional versatility, this technology, commonly referred to as genome editing, has become an effective force not only in basic research devoted to the elucidation of gene function, but also for knowledgebased improvement of crop traits. Among the different platforms currently available for site-directed genome modifications, RNA-guided clustered regularly interspaced short palindromic repeats (CRISPR)-associated (Cas) endonucleases have proven to be the most powerful. This review provides an application-oriented overview of the development of customizable endonucleases, current approaches to cereal crop breeding, and future opportunities in this field. en-copyright= kn-copyright= en-aut-name=HisanoHiroshi en-aut-sei=Hisano en-aut-mei=Hiroshi kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=1 ORCID= en-aut-name=AbeFumitaka en-aut-sei=Abe en-aut-mei=Fumitaka kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=2 ORCID= en-aut-name=HoffieRobert E. en-aut-sei=Hoffie en-aut-mei=Robert E. kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=3 ORCID= en-aut-name=KumlehnJochen en-aut-sei=Kumlehn en-aut-mei=Jochen kn-aut-name= kn-aut-sei= kn-aut-mei= aut-affil-num=4 ORCID= affil-num=1 en-affil=Institute of Plant Science and Resources, Okayama University kn-affil= affil-num=2 en-affil=Institute of Crop Science, National Agriculture and Food Research Organization kn-affil= affil-num=3 en-affil=Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) kn-affil= affil-num=4 en-affil=Leibniz Institute of Plant Genetics and Crop Plant Research (IPK) kn-affil= en-keyword=barley kn-keyword=barley en-keyword= CRISPR kn-keyword= CRISPR en-keyword= maize kn-keyword= maize en-keyword=rice kn-keyword=rice en-keyword=TALEN kn-keyword=TALEN en-keyword=wheat kn-keyword=wheat en-keyword=zinc-finger nucleases kn-keyword=zinc-finger nucleases END