Xenopus inner ear RNA was profiled using the Affymetrix GeneChip®Xenopus laevis Genome 2.0 Array (Affymetrix) comprising more than 32,400 probe sets (Xl-PSIDs), representing over 29,900 X. laevis transcripts. Labeled antisense single-stranded cDNA was prepared from each RNA replicate using the Ovation RNA Amplification System V2 in conjunction with the FL-Ovation cDNA Biotin Module V2 (both from NuGEN), hybridized overnight and scanned using a GeneChip Scanner 3000 7G (Affymetrix). RNA and microarrays were processed at the MIT BioMicro Center.
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