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| Content Provider | Springer Nature Link |
|---|---|
| Author | Liu, Hongzhan Zheng, Fengrong Sun, Xiuqin Cai, Yimei |
| Copyright Year | 2012 |
| Abstract | The aquaculture of sea cucumber Apostichopus japonicus (Echinodermata, Holothuroidea) has grown rapidly during recent years and has become an important sector of the marine industry in Northern China. However, with the rapid growth of the industry and the use of non-standard culture techniques, epidemic diseases of A. japonicus now pose increasing problems to the industry. To screen the genes with stress response to bacterial infection in sea cucumber at a genome wide level, we constructed a cDNA library from A. japonicus Selenka (Aspidochirotida: Stichopodidae) after infecting them with Vibrio sp. for 48 h. Total RNA was extracted from the intestine, mesentery and coelomocyte of infected sea cucumber using Trizol and mRNA was isolated by Oligotex mRNA Kits. The ligated cDNAs were transformed into DH5α, and a library of 3.24×10$^{5}$ clones (3.24×10$^{5}$ cfu mL$^{−1}$) was obtained with the sizes of inserted fragments ranging from 0.8 to 2.5 kb. Sequencing the cDNA clones resulted in a total of 1106 ESTs that passed the quality control. BlastX and BlastN searches have identified 168 (31.5%) ESTs sharing significant homology with known sequences in NCBI protein or nucleotide databases. Among a panel of 25 putative immunity-related genes, serum lectin isoform, complement component 3, complement component 3-like genes were further studied by real-time PCR and they all increased more than 5 fold in response to Vibrio sp. challenge. Our library provides a valuable molecular tool for future study of invertebrate immunity against bacterial infection and our gene expression data indicates the importance of the immune system in the evolution and development of sea cucumber. |
| Starting Page | 187 |
| Ending Page | 196 |
| Page Count | 10 |
| File Format | |
| ISSN | 16725182 |
| Journal | Journal of Ocean University of China |
| Volume Number | 11 |
| Issue Number | 2 |
| e-ISSN | 19935021 |
| Language | English |
| Publisher | SP Science Press |
| Publisher Date | 2012-03-03 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Apostichopus japonicus cDNA library expressed sequence tags immunity-related genes real-time PCR Oceanography |
| Content Type | Text |
| Resource Type | Article |
| Subject | Oceanography Ocean Engineering |
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