CRISPR/Cas9-engineered deletion removes the entire dct-1 coding sequence. Homozygote mutant animals are viable and have normal morphology. Outer left sequence: gtttcagagacgggtctttcctaaca Outer right sequence: ttccaaacaaaaattttaacgttcgactta sgRNA1: ACAGCAGACGGAGCAGTCAT sgRNA2: GTACAGTGAAATGAGGTAAG Reference: Gutie?rrez-Pérez, P. et al. A deeply conserved miR-1 dependent regulon supports muscle cell physiology. bioRxiv, 2020, doi.org/10.1101/2020.08.31.275644.