Figure 1From: A 454 multiplex sequencing method for rapid and reliable genotyping of highly polymorphic genes in large-scale studiesDesign of the barcoding system. 36 forward and 24 reverse tags were dispensed into nine 96-well plates producing 864 unique combinations of 6-nucleotide sequences named barcodes. 1: reverse tags forming a homopolymer GG with the "key" sequence. 2: reverse tags that could not be recovered because of homopolymer formation (see text for more details).Back to article page