What is the difference between the Mouse WG6 and Ref8 Illumina beadchips?
Both of these Illumina beadchips are genome-wide expression arrays. The key difference is the depth of coverage per sample. On the WG6 chips there are ~48,000 transcripts per sample, whereas there are only ~24,000 per sample on the Ref8. Due to the variations in probe density per sample on the arrays, Illumina is able to fit 8 sample spaces on each Ref8 chip, but only 6 on each WG6 chip. For more details on these chips, please consult the Illumina website.
