Genetic diversity of the nucleocapsid protein gene of hippeastrum chlorotic ringspot virus from Hymenocallis littoralis in southern China
Genetic diversity of the nucleocapsid protein gene of hippeastrum chlorotic ringspot virus from Hymenocallis littoralis in southern China
复制标题
华南朱顶红退绿环斑病毒核衣壳蛋白基因的遗传多样性
DOI：
10.4149/av_2017_01_116
复制
发表时间：
2017-01-01
期刊：
影响因子：
1.7
通讯作者：
Liu, Y.
中科院分区：
文献类型：
--
作者：
Li, Q.;Xu, Y.;Liu, Y.
最近，生长在中国南部的斜纹夜蛾广泛受到坏死、黄化和环斑等病毒样症状的危害。从中国南部的云南、广西、广东、福建等省采集的44份植物样品中，有32份感染了苹果黄化环斑病毒。基于N基因的系统发育分析将病毒样本分为两个分支，表明其地理分布归因于创始人效应的初始阶段。N基因处于净化选择压力下，大部分有害突变体已被去除。种群动态和遗传分析均表明，中国南部地区猪瘟病毒种群呈扩散趋势。
Hymenocallis littoralis growing in southern China has been recently extensively damaged by virus-like symptoms of necrosis, chlorosis, and ringspot. Of 44 plant samples collected from Yunnan, Guangxi, Guangdong, and Fujian provinces in southern China, 32 were infected with hippeastrum chlorotic ringspot virus (HCRV). Phylogenetic analysis based on the N gene divided the virus samples into two branches suggesting a geographic distribution attributed to the initial stage of a founder effect. The N gene was under purifying selection pressure and most of the deleterious mutants had been removed. Both the population dynamics and genetic analyses suggested that populations of HCRV in southern China are spreading.