Diversity, Distribution, and Evolution of Tomato Viruses in China Uncovered by Small RNA Sequencing.

ABSTRACT: Tomato is a major vegetable crop that has tremendous popularity. However, viral disease is still a major factor limiting tomato production. Here, we report the tomato virome identified through sequencing small RNAs of 170 field-grown samples collected in China. A total of 22 viruses were identified, including both well-documented and newly detected viruses. The tomato viral community is dominated by a few species, and they exhibit polymorphisms and recombination in the genomes with cold spots and hot spots. Most samples were coinfected by multiple viruses, and the majority of identified viruses are positive-sense single-stranded RNA viruses. Evolutionary analysis of one of the most dominant tomato viruses, Tomato yellow leaf curl virus (TYLCV), predicts its origin and the time back

SUBMITTER: Xu C 

PROVIDER: S-EPMC5432854 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature