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| A new anti-lipopolysaccharide factor (ALF) gene with its SNP polymorphisms related to WSSV-resistance of Litopenaeus vannamei | |
Liu, Jingwen1,2 ; Yu, Yang1,2; Li, Fuhua1; Zhang, Xiaojun1; Xiang, Jianhai1; Li, FH (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China.
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| 2014-07-01 | |
| 发表期刊 | FISH & SHELLFISH IMMUNOLOGY
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| 卷号 | 39期号:1页码:24-33 |
| 文章类型 | Article |
| 摘要 | Anti-lipopolysaccharide factors (ALFs) of crustacean play an important role against bacteria or virus infection. In this study, the cDNA sequence and genomic sequence of one new isoform of ALF designated as nLvALF1 were reported. The open reading frame (ORF) of nLvALF1 consisted of 369 bp encoding 123 amino acids and the genomic structure of nLvALF1 comprised four introns and three exons. The predicted pI of the deduced protein was 8.82 and the molecular weight (MW) was 13.72 KDa. The deduced amino acid sequence of nLvALF1 contained a typical functional domain of ALF: LPS-binding domain. Phylogenetic analysis showed that nLvALF1 had the closest relationship with FcALF1 from Fenneropenaeus chinensis. The nLvALF1 was specifically expressed in lymphoid organ (Oka) of shrimp. Its transcriptional level was significantly up-regulated after white spot syndrome virus (WSSV) challenge, suggesting that nLvALF1 might participate in defense against WSSV in Litopenaeus vannamei. In order to search potential genetic markers associated with WSSV-resistance, we scanned the polymorphisms of the genomic fragment with 397 bp where the LPS-binding domain encoding sequence located and 18 SNPs were found. The distribution frequency of these SNPs was analyzed in WSSV susceptible shrimp and resistant shrimp separately. Significant differences existed in allelic frequencies at loci g.1361-T > C, g.1370-T > C, g.1419-T > A between the WSSV-resistant group and the WSSV-susceptible/susceptible group (P < 0.05). The specific haplotype CT consisted of g.1415-C > A and g.1419-T > A was associated with susceptibility to WSSV (P < 0.05). These findings provide theoretical support for selection of WSSV-resistant varieties of L vannamei. (C) 2014 Elsevier Ltd. All rights reserved. |
| 关键词 | Litopenaeus Vannamei Alf Wssv Snps Association Study |
| 学科领域 | Fisheries ; Immunology ; Marine & Freshwater Biology ; Veterinary Sciences |
| DOI | 10.1016/j.fsi.2014.04.009 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000338613400004 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/24061 |
| 专题 | 实验海洋生物学重点实验室 |
| 通讯作者 | Li, FH (reprint author), Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China. |
| 作者单位 | 1.Chinese Acad Sci, Inst Oceanol, Key Lab Expt Marine Biol, Qingdao 266071, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jingwen,Yu, Yang,Li, Fuhua,et al. A new anti-lipopolysaccharide factor (ALF) gene with its SNP polymorphisms related to WSSV-resistance of Litopenaeus vannamei[J]. FISH & SHELLFISH IMMUNOLOGY,2014,39(1):24-33. |
| APA | Liu, Jingwen,Yu, Yang,Li, Fuhua,Zhang, Xiaojun,Xiang, Jianhai,&Li, FH .(2014).A new anti-lipopolysaccharide factor (ALF) gene with its SNP polymorphisms related to WSSV-resistance of Litopenaeus vannamei.FISH & SHELLFISH IMMUNOLOGY,39(1),24-33. |
| MLA | Liu, Jingwen,et al."A new anti-lipopolysaccharide factor (ALF) gene with its SNP polymorphisms related to WSSV-resistance of Litopenaeus vannamei".FISH & SHELLFISH IMMUNOLOGY 39.1(2014):24-33. |
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