辣椒轻斑驳病毒湖南分离物的全基因序列测定及结构分析
发布时间:2019-06-26 19:13
【摘要】:采自湖南地区的辣椒轻斑驳病毒Pepper mild mottle virus(PMMoV)样品经单斑分离后,根据已经报道的PMMoV序列基因保守区设计6对简并引物,采用片段重叠法和RACE方法扩增、克隆获得一个全长为6 356bp的湖南分离物(PMMoV-HN1,登录号:KP345899)全基因组序列,编码4个蛋白,分别为126kD蛋白(70~3 423nt)、183kD蛋白(70~4 908nt)、28kD蛋白(4 909~5 682nt)和17.5kD蛋白(5 685~6 158nt),5′-非编码区(5′-UTR)和3′-非编码区(3′-UTR)分别含有69和198个碱基,其中5′-UTR存在一个序列为m7G5′pppG的甲基化核苷酸帽子结构。一致性分析发现PMMoV-HN1与PMMoV其他分离物的核酸一致性为94%~99%,编码的氨基酸一致性为94%~99%。全基因组序列系统进化分析表明PMMoV-HN1分离物与中国首次报道的PMMoV-CN分离物亲缘关系最近。本研究是国内报道的第二例PMMoV全基因组序列。
[Abstract]:After single spot isolation of pepper light mottle virus Pepper mild mottle virus (PMMoV) samples collected from Hunan Province, six pairs of degenerate primers were designed according to the conserved region of PMMoV sequence gene. The fragment overlap method and RACE method were used to amplify the whole genome sequence of 6 356bp Hunan isolate (PMMoV-HN1, accession number: KP345899), encoding four proteins, 126kD protein (70 鈮,
本文编号:2506421
[Abstract]:After single spot isolation of pepper light mottle virus Pepper mild mottle virus (PMMoV) samples collected from Hunan Province, six pairs of degenerate primers were designed according to the conserved region of PMMoV sequence gene. The fragment overlap method and RACE method were used to amplify the whole genome sequence of 6 356bp Hunan isolate (PMMoV-HN1, accession number: KP345899), encoding four proteins, 126kD protein (70 鈮,
本文编号:2506421
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