Wang Rong, Liu Sai, Xu Changqing, Yu Jing, Wei Jianhe, Ding Wanlong, Li Yong
Institute of Medicinal Plant Development, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
Front Microbiol. 2024 Jan 4;14:1294616. doi: 10.3389/fmicb.2023.1294616. eCollection 2023.
Goji berry ( L.) is a traditional Chinese herbal medicinal plant that is extensively cultivated in the arid and semiarid regions of northwest China. In this study, a novel cytorhabdovirus, tentatively named "goji cytorhabdovirus A (GCVA)," was identified from the goji berry plant exhibiting leaf crinkle symptoms through high-throughput sequencing (HTS). GCVA contains a linear, negative sense single-stranded RNA genome of 14,812 nucleotides and encodes six open reading frames in the order of 3' leader-N-P-P4-M-G-L-5' trailer. The genome of GCVA shares the highest nucleotide (nt) identity of 65.80% (16% query coverage) with yerba mate virus A (YmVA) (NC_076472). The N and L proteins also share low amino acid (aa) identities (<35.42 and < 41.23%, respectively) with known cytorhabdoviruses. Typical features of the viruses in the genus include a highly conserved consensus sequence in the intergenic regions and extensive complementation of the 5' non-coding trailer and the 3' leader. These features were also found in GCVA. These data in combination with a phylogenetic analysis that was based on the aa sequences of the N and L proteins support the proposal that GCVA is a new species in the genus .
枸杞(Lycium barbarum L.)是一种传统的中国草药植物,在中国西北干旱和半干旱地区广泛种植。在本研究中,通过高通量测序(HTS)从表现出叶片皱缩症状的枸杞植株中鉴定出一种新型的细胞质弹状病毒,暂命名为“枸杞细胞质弹状病毒A(GCVA)”。GCVA含有一个14,812个核苷酸的线性负义单链RNA基因组,并按3'前导-N-P-P4-M-G-L-5'尾区的顺序编码六个开放阅读框。GCVA的基因组与马黛茶病毒A(YmVA)(NC_076472)的核苷酸(nt)同一性最高,为65.80%(查询覆盖率16%)。N蛋白和L蛋白与已知的细胞质弹状病毒的氨基酸(aa)同一性也较低(分别<35.42%和<41.23%)。该属病毒的典型特征包括基因间隔区高度保守的共有序列以及5'非编码尾区和3'前导区的广泛互补。这些特征在GCVA中也被发现。这些数据与基于N蛋白和L蛋白氨基酸序列的系统发育分析相结合,支持了GCVA是该属新物种的提议。