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Characterization of a triple-recombinant, reassortant rotavirus strain from the Dominican Republic.


ABSTRACT: We report the genome of a novel human triple-recombinant G4P[6-8_R] mono-reassortant strain identified in a stool sample from the Dominican Republic during routine facility-based rotavirus strain surveillance. The strain was designated as RVA/Human-wt/DOM/2013840364/2013/G4P[6-8_R], with a genomic constellation of G4-P[6-8_R]-I1-R1-C1-M1-(A1-A8_R)-N1-(T1-T7_R)-E1-H1. Recombinant gene segments NSP1 and NSP3 were generated as a result of recombination between genogroup 1 rotavirus A1 human strain and a genotype A8 porcine strain and between genogroup 1 rotavirus T1 human strain and a genotype T7 bovine strain, respectively. Analyses of the RNA secondary structures of gene segment VP4, NSP1 and NSP3 showed that all the recombinant regions appear to start in a loop (single-stranded) region and terminate in a stem (double-stranded) structure. Also, the VP7 gene occupied lineage VII within the G4 genotypes consisting of mostly porcine or porcine-like G4 strains, suggesting the occurrence of reassortment. The remaining gene segments clustered phylogenetically with genogroup 1 strains. This exchange of whole or partial genetic materials between rotaviruses by recombination and reassortment contributes directly to their diversification, adaptation and evolution.

SUBMITTER: Esona MD 

PROVIDER: S-EPMC5720362 | biostudies-literature | 2017 Feb

REPOSITORIES: biostudies-literature

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Characterization of a triple-recombinant, reassortant rotavirus strain from the Dominican Republic.

Esona Mathew D MD   Roy Sunando S   Rungsrisuriyachai Kunchala K   Sanchez Jacqueline J   Vasquez Lina L   Gomez Virgen V   Rios Lourdes Aviles LA   Bowen Michael D MD   Vazquez Marietta M  

The Journal of general virology 20170224 2


We report the genome of a novel human triple-recombinant G4P[6-8_R] mono-reassortant strain identified in a stool sample from the Dominican Republic during routine facility-based rotavirus strain surveillance. The strain was designated as RVA/Human-wt/DOM/2013840364/2013/G4P[6-8_R], with a genomic constellation of G4-P[6-8_R]-I1-R1-C1-M1-(A1-A8_R)-N1-(T1-T7_R)-E1-H1. Recombinant gene segments NSP1 and NSP3 were generated as a result of recombination between genogroup 1 rotavirus A1 human strain  ...[more]

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