Species substitution of seafood is a major global problem. German scientists have developed a rapid, easy to use, DNA microarray for fish species identification based on cytochrome b and 16S rDNA probes. The microarray test takes only 4-5 hours to complete, and identifies ten important commercial fish species. The microarray was validated using 67 authentic fish species, and was able to clearly identify the 10 species even from closely related species of fish.
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