Figure S3: Testing variations in the RNA FISH staining protocol. a, Overview of main steps in the RNA FISH protocol. The most efficient condition tested in this experiment is shown below each step. b, Table of eight conditions tested in side-byside comparison. See Methods for additional details. c, Quantification of signal intensity for conditions tested, with each line representing a replicate (N=2 retinal sections per condition). Each condition was tested using two-color FISH for Vsx1 and Grik1. d, Representative images of conditions tested. Scale bar is 10 µm. All sections 40 µM, from P25 animals.