基金supported by National Natural Science Fundation(31572657,31372563)Special Funds from the Administration of Ocean and Fisheries of Guangdong Province(A201512C003,2015-115)+2 种基金Special Fund for Science and Technology from Hubei Province(2015BBA228)Fund from Wuhan Science and Technology Bureau(2016020101010089)“Innovation and Strong Universities”Special Funds(KA170500G)from the Department of Education of Guangdong Province
文摘利用转录组技术对鰤诺卡氏菌(Nocardia seriolae)感染的乌鳢(Channa argus)进行分析与比较,以揭示可能的免疫机制,尤其在Toll样受体和Nod样受体的免疫反应.从乌鳢的头肾提取总RNA,采用Illumina Hi Seq TM2500进行测序和de novo转录组分析.乌鳢感染鰤诺卡氏菌后,对照组和试验组的clean reads分别是33 556 284(93.79%)和34 202 766(93.52%).利用Trinity软件对unigenes进行注释,从133 999条unigenes里,一共106319条unigenes得到注释,占79.34%;NR(NCBI non-redundant protein database)注释54 886(40.97%)条unigenes;39 795(29.69%)的Swiss-Prot注释;5 885(4.39%)条unigenes被KEGG(Kyoto encyclopedia of genes and genomes)注释到335条通路;5 753(4.29%)被注释到GO(Gene ontology)里.3 912条unigenes表达差异,其中1552条表达上调(39.67%)和2 360条表达下调(60.33%).Toll样受体和Nod样受体的免疫信号通路分别有28和13条差别表达基因发现有调制,12和3个上调,11和6个下调,5和4个unigenes没有显著的变化.经过转录组测序分析显示,乌鳢感染鰤诺卡氏菌后的转录复杂程度高,导致感染个体重诱导表达的基因产品的验证发现,尤其在非特异性免疫系统方面.