Related Experiment Video
Updated: Jan 13, 2026

Combining Analysis of DNA in a Crude Virion Extraction with the Analysis of RNA from Infected Leaves to Discover New Virus Genomes
Published on: July 27, 2018
Molecular characterization of a novel partitivirus from quinoa (Chenopodium quinoa) in China
Wenqi Mao1, Jiajia Lin1, Zhongtian Xu1
1State Key Laboratory for Quality and Safety of Agro-products, Key Laboratory of Biotechnology in Plant Protection of MARA, Key Laboratory of Green Plant Protection of Zhejiang Province, Institute of Plant Virology, Ningbo University, Ningbo, China.
Abstract:
A novel partitivirus was detected in quinoa (Chenopodium quinoa) plants growing in China. The complete genome sequence of quinoa cryptic virus (QCV) was determined using a combination of next-generation sequencing, RT-PCR, and RACE. Phylogenetic analysis based on amino acid (aa) sequences of the RdRP revealed that QCV belongs to the genus Deltapartitivirus within the family Partitiviridae. The aa sequence identity values obtained when comparing RdRP and CP of QCV with those of the most closely related virus, pistacia cryptic virus, were significantly below the threshold for species demarcation within the genus (≤ 90% aa sequence identity for RdRP and ≤ 80% for CP), suggesting that QCV represents a new species.
Related Concept Videos
Subviral Agents
Viruses with RNA Genomes
Single Nucleotide Polymorphisms-SNPs

