CRISPR/Cas9-mediated mutagenesis of Ubx by the co-expression of UbxUAS.gRNAx4.pCFD6 and Spyo\Cas9UAS.P2 under the combined control of Scer\GAL4Mef2.247 and Scer\GAL4twi.2PE leads to stage 16 embryos with morphological defects, as muscles are malformed, detached, or missing.
defects in morphology, as muscles were malformed, detached, or missing