Figure 5

Scanning fluorescence image of the Pseudo-nitzschia multiseries ( Ps-n ) cDNA microarray hybridized with Cy3- and Cy5-labeled cDNAs from non-toxin-producing vs. toxin-producing cells. 5,169 individual Ps-n cDNAs and 25 control cDNAs were printed in replicate, and 96 Ps-n cDNAs were printed in quadruplicate, yielding a final chip including 10,772 features. A representative grid is enlarged to illustrate the sub-division of each 8 × 4 grid into two replicate sections, differentiated by the arrowed lines.