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Characteristics of the Complete Genome of Ageratum Yellow Vein China Virus Infecting Sonchus oleraceus

文献类型： 外文期刊

作者： Mo, Cuiping 1 ; Tang, Yafei 4 ; Chen, Jinqing 1 ; Cui, Lixian 1 ; Xie, Huiting 1 ; Qin, Bixia 1 ; Cai, Jianhe 1 ; Li, Zhanbiao 1 ;

作者机构： 1.Guangxi Acad Agr Sci, Plant Protect Res Inst, Nanning 530007, Guangxi, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Green Prevent & Control Fruits & Vegetable, Nanning 530007, Guangxi, Peoples R China

3.Guangxi Key Lab Biol Crop Dis & Insect Pests, Nanning 530007, Guangxi, Peoples R China

4.Guangdong Acad Agr Sci, Plant Protect Res Inst, Guangdong Prov Key Lab High Technol Plant Protect, Guangzhou 510640, Guangdong, Peoples R China

关键词： ageratum yellow vein China virus; begomoviruses; mutant strain; Sonchus oleraceus

期刊名称：PLANT DISEASE （ 影响因子：4.5； 五年影响因子：5.0 ）

ISSN： 0191-2917

年卷期： 2023 年

页码：

收录情况： SCI

摘要： Sonchus (Sonchus oleraceus) originated from Europe and is now cultivated worldwide. The wild resources of sonchus are very abundant, and it has rich nutritional and medicinal value. In this study, 15 sonchus samples with typical symptoms showing leaf curling, vein thickening, and enations were collected from Guigang and Baise City of Guangxi, China. Diseased sonchus were identified by PCR detection, whole genome sequence amplification, and phylogenetic and recombination analysis. The results showed that all the samples were confirmed infected by begomoviruses, and three full-length viral genomes were obtained from 15 sonchus, named GG7-13, GG8-6, and BS63-5. The full genome lengths were 2,584, 2,735, and 2,746 nt, respectively. The nucleotide identities among the three isolates ranged from 92.67 to 99.93%. All of them shared the highest identities (greater than 91.69%) with other isolates of ageratum yellow vein China virus (AYVCNV) (available on GenBank). According to the guidelines of classification of begomoviruses, the virus isolates obtained in this study are different isolates of AYVCNV; a phylogenetic tree analysis showed that these isolates formed a large branch with three other Guangxi isolates of AYVCNV, indicating their close evolution. The genome structures of GG8-6 and BS63-5 are consistent with the monopartite genome virus of the begomoviruses, and both have six open reading frames (ORFs), while GG7-13 has a 151-nt deletion between C2 and C3, resulting in a mutant strain of only five ORFs. This study is the first report on S. oleraceus infected by ageratum yellow vein China virus.

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