Abstract
White spot syndrome virus (WSSV) infects all shrimp species and is the greatest detriment to shrimp culture. To better understand the mechanism of molecular responses to WSSV infection in “Huanghai No. 2” Fenneropenaeus chinensis, a microarray technique was used. Microarray gene expression profiling of 59,137 unigenes identified Differentially Expressed Genes (DEGs) both in live and moribund shrimp at early, peak and late phases. In live shrimp, 1307, 1479 and 1539 DEGs were obtained in the early, peak and late phase, respectively. Meanwhile, 1536, 2181 and 1591 DEGs were obtained in moribund shrimp. Twenty known annotation genes are uniquely expressed in the late phase of live shrimp, including adhesion regulating molecule 1, arginine kinase, BUD31 homolog, and QM. Compared to WSSV-susceptible shrimp, 75 known annotation genes are uniquely expressed in WSSV-resistant shrimp, including arginine kinase, BUD31 homolog, clottable protein 2, caspase 2, cathepsin C, calnexin, HMGBb, Histone 3, and selenoprotein M. The gene expression patterns of the infected shrimp were altered by WSSV infection. To further confirm the expression of differentially expressed genes, real-time RT-PCR was performed to test six randomly selected genes. The data will provide valuable information to understand the immune mechanism of shrimp's response to WSSV.
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