High genetic diversity at the inter-/intra-host level of Cherry leaf roll virus population associated with the birch leaf-roll disease in Fennoscandia
High genetic diversity at the inter-/intra-host level of Cherry leaf roll virus population associated with the birch leaf-roll disease in Fennoscandia
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DOI：
10.1080/02827581.2016.1165283
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发表时间：
2016-01-01
影响因子：
1.8
通讯作者：
Buettner, Carmen
中科院分区：
文献类型：
--
作者：
Rumbou, Artemis;von Bargen, Susanne;Buettner, Carmen
与樱桃卷叶病毒（CLRV）相关的病毒流行病已出现在芬诺斯堪的纳维亚的桦属物种中，在过去15年中表现出快速有效的传播。选择群体遗传学的方法来研究病毒的多样性和遗传变异的来源，以调查病原体的流行病学。在罗瓦涅米城市公园的CLRV人口和人口感染年轻的白桦幼苗与接穗从原来的芬兰树木后发生的，遗传多样性被发现是非常高的，混合感染CLRV变种从不同的系统发育组中检测到在单一的树木，而重组被证明发生。估计的遗传变异性高，CLRV单倍型检测表现出明确的聚类，属于不同的系统发育组。病毒种群的结构揭示了一种具有高进化潜力的病原体，该病原体被认为能够进行有效的传播。
A viral epidemic associated with the Cherry leaf roll virus (CLRV) has emerged in Betula species in Fennoscandia, exhibiting quick and effective spread during the last 15 years. A population genetics approach is chosen in order to characterise the virus diversity and the sources of genetic variation aiming to investigate the epidemiology of the pathogen. In a CLRV population from Rovaniemi urban parks and a population that occurred after infecting young Betula seedlings with scions from the original Finnish trees, the genetic diversity is found to be remarkably high, mixed infections by CLRV variants from different phylogenetic groups are detected in single trees, while recombination is evidenced to occur. The estimated genetic variability is high and the CLRV haplotypes detected exhibit clear clustering and belong to different phylogenetic groups. The structure of the viral population reveals a pathogen with high evolutionary potential assumed to carry on its effective spread.