某規(guī);i場豬流行性腹瀉病毒檢測及主要毒力基因克隆分析
[Abstract]:Porcine epidemic diarrhea (Porcine epidemic) is an acute contact infectious disease caused by porcine epidemic diarrhea virus (Porcine epidemic diarrhea virus), which is characterized by vomiting, diarrhea and dehydration. The disease occurs frequently all over the world, causing huge economic loss to pig industry. In this study, suspected PEDV infected piglets in Weinan Pig Farm in Weinan, Shaanxi Province, in November and December 2014, were selected as the research objects. After clinical symptom observation and pathological dissection, it was preliminarily diagnosed as epidemic diarrhea in pigs. By RT-PCR detection of PEDV M gene in 20 samples of small intestine disease, 9 porcine epidemic diarrhea virus nucleic acid (PEDV) positive rate was 45.0%. Referring to the whole genome sequence (AF353511.1) of the classical CV777 strain in Gen Bank, primers were designed to amplify the M gene and the S gene sequence of the PEDV ORF3 gene. The corresponding genes were cloned and sequenced. The results were compared with those of the CV777 strain. It was found that the M gene of the isolated strain was highly conserved and could be used as a target gene for the detection of PEDV. Compared with the classical strain CV777, there were 11 base mutations in the ORF3 gene. Whether these base mutations lead to the virulence of the virus remains to be studied. The core neutralizing epitope of the S protein (CEOO 499-638aa) has 9 amino acid loci mutated and 9 amino acid loci mutated. These mutations in the S gene may be one of the reasons for the decrease in the immune response of the PEDV vaccine.
【學位授予單位】:西北農(nóng)林科技大學
【學位級別】:碩士
【學位授予年份】:2015
【分類號】:S858.28
【參考文獻】
相關(guān)期刊論文 前10條
1 董世娟;石明明;朱于敏;于瑞嵩;張源淑;夏東;李震;;豬流行性腹瀉病毒熒光定量PCR檢測方法的建立及應(yīng)用[J];上海農(nóng)業(yè)學報;2015年01期
2 張月;王敏;胡莉萍;李玉杰;孔祥華;曹振山;姜秀云;;豬流行性腹瀉病毒分子結(jié)構(gòu)、診斷技術(shù)和疫苗的研究進展[J];山東畜牧獸醫(yī);2015年01期
3 滿坤;楊兵;薛靜;覃湘婕;周宏專;徐福洲;許承揚;楊鳳萍;張立全;李向龍;張曉東;王金洛;;利用玉米作為生物反應(yīng)器表達PEDV中和表位抗原蛋白[J];中國農(nóng)業(yè)科技導報;2014年06期
4 張志;董雅琴;劉爽;吳發(fā)興;邵衛(wèi)星;李曉成;;我國部分省份豬流行性腹瀉的流行病學監(jiān)測[J];中國動物檢疫;2014年10期
5 朱迪國;宋建德;袁麗萍;魏榮;;2013—2014年全球豬流行性腹瀉重大疫情分析[J];中國動物檢疫;2014年10期
6 杜曉莉;王一成;吳潤;徐麗華;袁秀芳;李軍星;周曉麗;;2010—2013年浙江省豬流行性腹瀉病毒臨床檢測及PEDV-S基因型分析[J];浙江農(nóng)業(yè)學報;2014年03期
7 翁善鋼;;豬流行性腹瀉肆虐全球[J];養(yǎng)豬;2014年04期
8 孫振釗;趙偉男;王靖飛;;豬腹瀉病例中PEDV、TGEV及PRV的感染調(diào)查[J];動物醫(yī)學進展;2014年05期
9 鄭芳園;陳攀;范寶超;李玉峰;;豬流行性腹瀉病毒M和S蛋白的原核表達及多克隆抗體的制備[J];畜牧與獸醫(yī);2014年05期
10 梁恩濤;廖曉丹;黃小波;文心田;曹三杰;陽酉萍;段素芬;張丹;張小會;;攜帶豬流行性腹瀉病毒S基因的減毒鼠傷寒沙門菌的構(gòu)建與鑒定[J];中國獸醫(yī)科學;2014年03期
相關(guān)會議論文 前1條
1 何子雙;;豬流行性腹瀉的診斷及防制措施[A];第十屆(2012)中國豬業(yè)發(fā)展大會會刊[C];2012年
相關(guān)碩士學位論文 前1條
1 楊群;兩種豬腸道冠狀病毒診斷方法的建立和國內(nèi)新分離毒株主要結(jié)構(gòu)蛋白基因克隆與序列分析[D];南京農(nóng)業(yè)大學;2005年
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