Target sequences were amplified by PCR and SANGER sequenced (Macrogen), then purified by ISOLATE II PCR and Gel Kit (#BIO-52059; Bioline) or the Exo-Cip Rapid PCR Cleanup Kit (New England Biolabs). Gene editing efficiency was analyzed using TIDE analysis software (Brinkman et al, 2014 (link)). Each sample was corrected for background by subtracting the editing percentage in cells containing the control gRNA. PCR primers used are as follows: sgCAND1 #1 forward: GATTCCCGGAGTCAGTTTGG, sgCAND1 #1 reverse: CTGAAATCCAAAAGGCCGCT, sgCAND1 #2 forward: ATGCACTGGCATTTCCACAA, sgCAND1 #2 reverse: CCTAGCCAAGAGAAAACAAGTGG.
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