Rapid evolutionary dynamics of pepper mild mottle virus

被引：8
|
作者：
Guan, Xiayu [1 ]
Yang, Caixia [2 ]
Fu, Jingjing [2 ]
Du, Zhenguo [3 ]
Ho, Simon Y. W. [4 ]
Gao, Fangluan [1 ,3 ,4 ]
机构：
[1] Fujian Agr & Forestry Univ, Key Lab Biopesticide & Chem Biol, Minist Educ, Fuzhou 350002, Fujian, Peoples R China
[2] Shenyang Univ, Coll Life Sci & Engn, Liaoning Key Lab Urban Integrated Pest Management, Shenyang 110044, Liaoning, Peoples R China
[3] Fujian Agr & Forestry Univ, Inst Plant Virol, Fujian Key Lab Plant Virol, Fuzhou 350002, Fujian, Peoples R China
[4] Univ Sydney, Sch Life & Environm Sci, Sydney, NSW 2006, Australia
来源：
VIRUS RESEARCH | 2018年 / 256卷
基金：
澳大利亚研究理事会;
关键词：
Pepper mild mottle virus; Bayesian phylogenetics; Substitution rate; Viral phylodynamics; Structured coalescent; MOLECULAR EVOLUTION; MOSAIC-VIRUS; INFERENCE; CAPSICUM; RATES; TIME; RESISTANCE; ACCURACY; GENE;
D O I：
10.1016/j.virusres.2018.08.006
中图分类号：
Q93 [微生物学];
学科分类号：
071005 ; 100705 ;
摘要：
Pepper mild mottle virus (PMMoV) is one of the most destructive pathogens of pepper crops and has major impacts on global crop yields. Some aspects of the molecular biology of PMMoV have been studied intensively, but estimates of its evolutionary rate have shown considerable variation. We investigated the phylodynamics of PMMoV by analysing 171 nucleotide sequences of the coat protein gene, sampled between 1980 and 2016. Our Bayesian phylogenetic analyses, using the structured coalescent, dated the crown group to 1949 (95% credibility interval 1935-1962). We reveal that PMMoV has been evolving at a rate of 9.363 x 10(-4) substitutions/site/year (95% credibility interval 7.362 x 10(-4) -1.138 x 10(-3)). This is similar to evolutionary rates estimated for animal RNA viruses, indicating that PMMoV has been undergoing rapid evolutionary dynamics.
引用
收藏
页码：96 / 99
页数：4
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