Applying a highly specific and reproducible cDNA RDA method to clone garlic up-regulated genes in human gastric cancer cells

Figure 1 Schematic diagram of preparing representations for cDNA RDA based on cDNA libraries. Using BamH I alone (A) or BamH I and Xho I together (B) to digest library DNAs. Black boxes represent insert cDNAs of cDNA libraries. White boxes represent two arms of cDNA library vector (λZAP II vector). “B” epresents BamH I and “X”Xho I.