一种感染山茱萸（Coll. et Hemsl.）的新型未分类分病毒的基因组特征及种子传播
Genomic characterization and seed transmission of a novel unclassified partitivirus infecting Coll. et Hemsl.
作者信息
Zhang Fan, Su Xiaoxia, Zhang Shaozhi, Wang Maosen, Wang Tiantian, Zheng Xue, Wu Kuo, Zheng Kuanyu, Zhang Zhongkai
机构信息
Biotechnology and Germplasm Resources Research Institute, Yunnan Academy of Agricultural Sciences, 2238# Beijing Rd, Panlong District, Kunming 650205, Yunnan, PR China.
Yunnan Provincial Key Lab of Agricultural Biotechnology, 2238# Beijing Rd, Panlong District, Kunming 650205, Yunnan, PR China.
出版信息
Heliyon. 2023 May 26;9(6):e16719. doi: 10.1016/j.heliyon.2023.e16719. eCollection 2023 Jun.
This study identified a novel virus in the family infecting Coll. et Hemsl, which is tentatively named polygonatum kingianum cryptic virus 1 (PKCV1). PKCV1 genome has two RNA segments: dsRNA1 (1926 bp) has an open reading frame (ORF) encoding an RNA-dependent RNA polymerase (RdRp) of 581 amino acids (aa), and dsRNA2 (1721 bp) has an ORF encoding a capsid protein (CP) of 495 aa. The RdRp of PKCV1 shares 20.70-82.50% aa identity with known partitiviruses, and the CP of PKCV1 shares 10.70-70.80% aa identity with known partitiviruses. Moreover, PKCV1 phylogenetically clustered with unclassified members of the family. Additionally, PKCV1 is common in planting regions and has a high infection rate in seeds.
本研究在感染玉竹（Coll. et Hemsl）的病毒中鉴定出一种新型病毒，暂命名为滇黄精隐匿病毒1（PKCV1）。PKCV1基因组有两个RNA片段：双链RNA1（1926 bp）有一个开放阅读框（ORF），编码一个由581个氨基酸（aa）组成的RNA依赖RNA聚合酶（RdRp），双链RNA2（1721 bp）有一个ORF，编码一个由495个aa组成的衣壳蛋白（CP）。PKCV1的RdRp与已知的双分病毒的氨基酸同一性为20.70 - 82.50%，PKCV1的CP与已知双分病毒的氨基酸同一性为10.70 - 70.80%。此外，PKCV1在系统发育上与该病毒科未分类的成员聚类。此外，PKCV1在种植区域普遍存在，在种子中的感染率很高。
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