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. 2020 Jun 17;3(3):164–176. doi: 10.1089/crispr.2020.0018

Fig. 1.

Fig. 1.

CasRx-mediated target transcript reduction in restricted tissue types using the binary Gal4/UAS system. (A) Representative genetic crossing schematic. (B) Inheritance rates of triple transheterozygous flies inheriting three transgenes (UASt-CasRx or UASt-dCasRx, gRNAarray, and Gal4-driver), corresponding to flies highlighted in the red box in panel A. Significant differences in inheritance between CasRx and dCasRx groups were observed in all three gene targets (gRNAw, P = 0.00595; gRNAN, P = 0.00402; gRNAy, P = 0.02205). (C) Phenotypes of the triple transheterozygous flies. The white arrow identifies chitin pigment reduction in the thorax resulting from y targeting. Black and white fly with “X” represents a lethal phenotype with no live adults able to be scored or imaged. CasRx, Cas ribonuclease; gRNAarray, guide RNA array; gRNAN, guide RNA targeting the Notch gene; gRNAw, guide RNA targeting the white gene; gRNAy, guide RNA targeting the yellow gene.