Dataset Information

Beatrice Hill Virus Represents a Novel Species in the Genus Tibrovirus (Mononegavirales: Rhabdoviridae).

ABSTRACT: The rhabdoviral genus Tibrovirus currently has three official members assigned to two species: Bivens Arm virus and Tibrogargan virus (species Tibrogargan tibrovirus) and Coastal Plains virus (species Coastal Plains tibrovirus). Here, we report the complete genome sequence of a new putative member of this genus, Beatrice Hill virus. Although relatively closely related to the three classified viruses, Beatrice Hill virus represents a novel Tibrovirus species.

SUBMITTER: Wiley MR

PROVIDER: S-EPMC5270694 | biostudies-literature | 2017 Jan

REPOSITORIES: biostudies-literature

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Beatrice Hill Virus Represents a Novel Species in the Genus Tibrovirus (Mononegavirales: Rhabdoviridae).

Wiley Michael R MR Prieto Karla K Blasdell Kim R KR Caì Yíngyún Y Campos Lawson Cristine C Walker Peter J PJ Chiu Charles Y CY Palacios Gustavo G Kuhn Jens H JH

Genome announcements 20170126 4

The rhabdoviral genus Tibrovirus currently has three official members assigned to two species: Bivens Arm virus and Tibrogargan virus (species Tibrogargan tibrovirus) and Coastal Plains virus (species Coastal Plains tibrovirus). Here, we report the complete genome sequence of a new putative member of this genus, Beatrice Hill virus. Although relatively closely related to the three classified viruses, Beatrice Hill virus represents a novel Tibrovirus species. ...[more]

PMID: 28126935

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Project description:BACKGROUND: Lutzomyia umbratilis is an important Leishmania guyanensis vector in South America. Previous studies have suggested differences in the vector competence between L. umbratilis populations situated on opposite banks of the Amazonas and Negro Rivers in the central Amazonian Brazil region, likely indicating a species complex. However, few studies have been performed on these populations and the taxonomic status of L. umbratilis remains unclear. METHODOLOGY/PRINCIPAL FINDINGS: Phylogeographic structure was estimated for six L. umbratilis samples from the central Amazonian region in Brazil by analyzing mtDNA using 1181 bp of the COI gene to assess whether the populations on opposite banks of these rivers consist of incipient or distinct species. The genetic diversity was fairly high and the results revealed two distinct clades (?=?lineages) with 1% sequence divergence. Clade I consisted of four samples from the left bank of the Amazonas and Negro Rivers, whereas clade II comprised two samples from the right bank of Negro River. No haplotypes were shared between samples of two clades. Samples within clades exhibited low to moderate genetic differentiation (F(ST)?=?-0.0390-0.1841), whereas samples between clades exhibited very high differentiation (F(ST)?=?0.7100-0.8497) and fixed differences. These lineages have diverged approximately 0.22 Mya in the middle Pleistocene. Demographic expansion was detected for the lineages I and II approximately 30,448 and 15,859 years ago, respectively, in the late Pleistocene. CONCLUSIONS/SIGNIFICANCE: The two genetic lineages may represent an advanced speciation stage suggestive of incipient or distinct species within L. umbratilis. These findings suggest that the Amazonas and Negro Rivers may be acting as effective barriers, thus preventing gene flow between populations on opposite sides. Such findings have important implications for epidemiological studies, especially those related to vector competence and anthropophily, and for vector control strategies. In addition, L. umbratilis represents an interesting example in speciation studies.

Dataset Information

Beatrice Hill Virus Represents a Novel Species in the Genus Tibrovirus (Mononegavirales: Rhabdoviridae).

Publications

Beatrice Hill Virus Represents a Novel Species in the Genus Tibrovirus (Mononegavirales: Rhabdoviridae).

Similar Datasets

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