Genomic analysis of bluetongue virus episystems in Australia and Indonesia.
| Title: | Genomic analysis of bluetongue virus episystems in Australia and Indonesia. |
|---|---|
| Authors: | Firth C; CSIRO Health & Biosecurity, 5 Portarlington Road, Geelong, VIC, 3220, Australia. cadhla.firth@unimelb.edu.au.; School of BioSciences, The University of Melbourne, Parkville, VIC, 3010, Australia. cadhla.firth@unimelb.edu.au.; Blasdell KR; CSIRO Health & Biosecurity, 5 Portarlington Road, Geelong, VIC, 3220, Australia.; Amos-Ritchie R; CSIRO Australian Animal Health Laboratory, 5 Portarlington Road, Geelong, VIC, 3220, Australia.; Sendow I; Virology Department, Indonesian Research Center for Veterinary Science, Bogor, West Java, 16114, Indonesia.; Agnihotri K; Biosecurity Sciences Laboratory, 39 Kessels Road, Coopers Plains, Brisbane, QLD, 4109, Australia.; Boyle DB; CSIRO Australian Animal Health Laboratory, 5 Portarlington Road, Geelong, VIC, 3220, Australia.; Daniels P; CSIRO Australian Animal Health Laboratory, 5 Portarlington Road, Geelong, VIC, 3220, Australia.; Kirkland PD; Virology Laboratory, Elizabeth Macarthur Agriculture Institute, Woodbridge Rd, Menangle, NSW, 2568, Australia.; Walker PJ; CSIRO Australian Animal Health Laboratory, 5 Portarlington Road, Geelong, VIC, 3220, Australia.; School of Biological Sciences, University of Queensland, St Lucia, QLD, 4067, Australia. |
| Source: | Veterinary research [Vet Res] 2017 Nov 23; Vol. 48 (1), pp. 82. Date of Electronic Publication: 2017 Nov 23. |
| Publication Type: | Journal Article |
| Language: | English |
| Journal Info: | Publisher: BioMed Central Country of Publication: England NLM ID: 9309551 Publication Model: Electronic Cited Medium: Internet ISSN: 1297-9716 (Electronic) Linking ISSN: 09284249 NLM ISO Abbreviation: Vet Res Subsets: MEDLINE |
| Imprint Name(s): | Publication: 2011- : London : BioMed Central; Original Publication: Paris : Editions Scientifiques Elsevier ; INRA, c1993- |
| MeSH Terms: | Genetic Variation* ; Genome, Viral*; Bluetongue virus/*genetics; Viral Nonstructural Proteins/genetics ; Viral Proteins/genetics ; Australia ; Genomics ; Indonesia ; Phylogeny ; Sequence Analysis, DNA |
| Abstract: | The distribution of bluetongue viruses (BTV) in Australia is represented by two distinct and interconnected epidemiological systems (episystems)-one distributed primarily in the north and one in the east. The northern episystem is characterised by substantially greater antigenic diversity than the eastern episystem; yet the forces that act to limit the diversity present in the east remain unclear. Previous work has indicated that the northern episystem is linked to that of island South East Asia and Melanesia, and that BTV present in Indonesia, Papua New Guinea and East Timor, may act as source populations for new serotypes and genotypes of BTV to enter Australia's north. In this study, the genomes of 49 bluetongue viruses from the eastern episystem and 13 from Indonesia were sequenced and analysed along with 27 previously published genome sequences from the northern Australian episystem. The results of this analysis confirm that the Australian BTV population has its origins in the South East Asian/Melanesian episystem, and that incursions into northern Australia occur with some regularity. In addition, the presence of limited genetic diversity in the eastern episystem relative to that found in the north supports the presence of substantial, but not complete, barriers to gene flow between the northern and eastern Australian episystems. Genetic bottlenecks between each successive episystem are evident, and appear to be responsible for the reduction in BTV genetic diversity observed in the north to south-east direction. |
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| Substance Nomenclature: | 0 (S10 protein, Bluetongue virus); 0 (Viral Nonstructural Proteins); 0 (Viral Proteins) |
| Entry Date(s): | Date Created: 20171125 Date Completed: 20180625 Latest Revision: 20260127 |
| Update Code: | 20260130 |
| PubMed Central ID: | PMC5701493 |
| DOI: | 10.1186/s13567-017-0488-4 |
| PMID: | 29169390 |
| Database: | MEDLINE |
Journal Article