Gene chip and applications thereof in detection of aquatic pathogenic microorganism

The invention relates to a gene chip in the detection of aquatic pathogenic microorganism, a preparation method and applications thereof in the detection of aquatic pathogenic microorganism. A conserved sequence selecting from a target pathogenic microorganism gene is fixed on a solid-phase carrier as an oligonucleotide probe, in the proper hybridization condition, a marked sample to be detected is added for reaction, and the corresponding aquatic pathogenic microorganism can be identified according to a probe display signal on the gene chip. The gene chip can fast detect the aquatic pathogenic microorganism such as aeromonas hydrophila, edwardsiella tarda, staphylococcus aureus, vibrio parahaemolyticus, listeria monocytogenes, salmonella typhimurium, shigella and the like, thus being high in detection sensitivity, and strong in specificity and greatly shortening the detection period.