Complete genome analysis of a novel hypovirus in the phytopathogenic fungus Monilinia fructicola
文献类型： 外文期刊
作者： Zhou, Kang 1 ; Zhou, Hui 3 ; Tang, Zhimin 5 ;
作者机构： 1.Fuyang Normal Univ, Anhui Prov Key Lab Environm Hormone & Reprod, Fuyang 236037, Peoples R China
2.Fuyang Normal Univ, Anhui Prov Key Lab Embryo Dev & Reprod Regulat, Fuyang 236037, Peoples R China
3.Huazhong Agr Univ, State Key Lab Agr Microbiol, Wuhan 430070, Peoples R China
4.Huazhong Agr Univ, Hubei Key Lab Plant Pathol, Wuhan 430070, Peoples R China
5.Chenzhou Inst Agr Sci, Chenzhou 423000, Peoples R China
6.Hunan Acad Agr Sci, Chenzhou Branch, Chenzhou 423000, Peoples R China
关键词： Mycovirus; Betahypovirus; Monilinia fructicola
期刊名称：ARCHIVES OF VIROLOGY （ 影响因子：2.5； 五年影响因子：2.2 ）
ISSN： 0304-8608
年卷期： 2024 年 169 卷 8 期
页码：
收录情况： SCI
摘要： Monilinia fructicola is one of the most devastating fungal diseases of rosaceous fruit crops, both in the field and postharvest, causing significant yield losses. Here, we report the discovery of a novel positive single-stranded RNA virus, Monilinia fructicola hypovirus 3 (MfHV3), in a strain (hf-1) of the phytopathogenic fungus Monilinia fructicola. The complete genome of MfHV3 is 9259 nucleotides (nt) in length and contains a single large open reading frame (ORF) from nt position 462 to 8411. This ORF encodes a polyprotein with three conserved domains, namely UDP-glycosyltransferase, RNA-dependent RNA polymerase (RdRp), and DEAD-like helicase. The MfHV3 polyprotein shares the highest similarity with Colletotrichum camelliae hypovirus 1. Phylogenetic analysis indicated that MfHV3 clustered with members of the genus Betahypovirus within the family Hypoviridae. Taken together, the results of genomic organization comparisons, amino acid sequence alignments, and phylogenetic analysis convincingly show that MfHV3 is a new member of the genus Betahypovirus, family Hypoviridae.
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