首页 | 期刊简介 | 编委会 | 投稿指南 | 常用下载 | 联系我们 | 期刊订阅 | In English
引用本文:
【打印本页】   【HTML】   【下载PDF全文】   查看/发表评论  下载PDF阅读器  关闭
←前一篇|后一篇→ 过刊浏览    高级检索
本文已被:浏览 32次   下载 0  
分享到: 微信 更多
大黄鱼(Larimichthys crocea)ISG15基因单核苷酸多态性及与抗病性状的相关性研究*
李凤欣1, 殷小龙2, 卢德政1, 刘成1, 张建设①1, 沈斌1
1.浙江海洋大学国家海洋设施养殖工程技术研究中心 浙江舟山;2.浙江省舟山市水产研究所 浙江舟山
摘要:
鱼类ISG15在抗病毒和细菌天然免疫方面发挥重要的作用,由哈维氏弧菌(Vibrio harveyi)等细菌感染引起的弧菌病对我国大黄鱼(Larimichthys crocea)的养殖造成严重危害,通过哈维氏弧菌人工感染大黄鱼建立易感组和抗病组,采用PCR扩增和直接测序法对大黄鱼干扰素刺激基因ISG15双拷贝(ISG15-1和ISG15-2)进行单核苷酸多态性(single nucleotide polymorphisms, SNPs)检测和分型,并与其哈维氏弧菌抗性进行关联分析。结果表明,从大黄鱼ISG15-1和ISG15-2基因中分别筛选到10个和4个SNP位点并进行了成功分型。经统计分析,ISG15-1基因的186 G/C和318 C/T位点以及ISG15-2基因的297 G/T位点的基因型频率和等位基因频率在易感群体和抗病群体中均存在极显著差异,表明这3个SNP位点与大黄鱼哈维氏弧菌抗性显著相关。连锁不平衡分析结果显示,ISG15-1的SNPs可形成1个单倍块和11种单倍型,而ISG15-2的SNPs可形成1个单倍块和5种单倍型。其中,ISG15-1基因的单倍型H2(CCCCGGTACC)、H6(TCCCACTGTC)和H9(TCCCAGTGCC)与大黄鱼哈维氏弧菌抗性显著相关;ISG15-2基因的单倍型H1(CCCG)和H4(TCCG)与大黄鱼哈维氏弧菌抗性极显著相关。这些ISG15-1和ISG15-2基因的SNP位点以及单倍型可以作为抗哈维氏弧菌病大黄鱼选育的候选分子标记。
关键词:  大黄鱼(Larimichthys crocea)  干扰素刺激基因ISG15  单核苷酸多态性  哈维氏弧菌
DOI:
分类号:
基金项目:浙江省自然科学基金项目, LY19D060004号。
SINGLE NUCLEOTIDE POLYMORPHISMS AND ITS ASSOCIATION WITH DISEASE RESISTANT TRAIT OF ISG15 GENES IN LARIMICHTHYS CROCEA
LI Feng-Xin1, YIN Xiao-Long2, LU De-Zheng1, LIU Chen1, ZHANG Jian-She1, SHEN Bin1
1.National Engineering Research Center of Marine Facilities Aquaculture,Zhejiang Ocean University;2.Zhoushan Fisheries Research Institute of Zhejiang Province
Abstract:
Individuals of large yellow croaker (Larimichthys crocea) were infected by bacterial Vibrio harveyi to establish susceptible and resistant groups. The single nucleotide polymorphisms (SNPs) of interferon-stimulated gene ISG15 copies (ISG15-1 and ISG15-2) in large yellow croaker were screened and genotyped by PCR amplification and direct DNA sequencing, and the association of SNPs with the resistance of large yellow croaker to V. harveyi was analyzed. The results showed that, a total of 10 and 4 SNPs were screed and successfully genotyped from the ISG15-1 and ISG15-2 gene, respectively. The results of statistical analyses showed that the differences of genotype and allele frequencies of 186 G/C and 318 C/T in ISG15-1 gene and 297 G/T in ISG15-2 gene were extremely significant between susceptible and resistant groups, indicating these three SNPs were significantly associated with the resistance of large yellow croaker to V. harveyi infection. The results of linkage disequilibrium analyses showed that the 10 SNPs of ISG15-1 gene formed 1 haplotype block and 11 haplotypes and the 4 SNPs of ISG15-2 gene formed 1 haplotype and 5 haplotypes. Thereinto, haplotypes of H2 (CCCCGGTACC), H6 (TCCCACTGTC) and H9 (TCCCAGTGCC) of ISG15-1 gene and haplotypes of H1 (CCCG) and H4 (TCCG) of ISG15-2 gene were all significantly associated with the resistance of large yellow croaker to V. harveyi infection. These SNPs and haplotypes of ISG15-1 and ISG15-2 genes could be used as candidate molecular markers for selective breeding of disease resistant varieties of large yellow croaker.
Key words:  Larimichthys crocea  interferon-stimulated gene ISG15  single nucleotide polymorphism  Vibrio harveyi
版权所有 海洋与湖沼 Oceanologia et Limnlolgia Sinica Copyright©2008 All Rights Reserved
主管单位:中国科协技术协会 主办单位:中国海洋湖沼学会
地址:青岛市福山路32号  邮编:266071  电话:0532-82898753  E-mail:ols@qdio.ac.cn
技术支持:北京勤云科技发展有限公司