**8.5 Microarray technology**

A microarrays technique (DNA chips or biochips) is an advanced technology for high-throughput detection of GMO. It can evolve together with the growing number of newly developed GMO in the food and feed markets. With the microarray technology applied to GMO detection, GM targets are amplified by PCR, using targetspecific and/or universal primers, prior to being hybridized on the array, allowing the simultaneous detection of more than 250,000 targets in one assay [61]. DNA chip technology coupled with multiplex PCR can be used in the identification of different transgenic events from GMOs by employing multiplex PCR approaches. Nucleic acid array in combination with multiplex PCR has been used successfully for identification of different types of events from GM crops like corn and cotton [32].
