| Autor: |
Stainton D; School of Biological Sciences and Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand., Martin DP; Department of Clinical Laboratory Sciences, University of Cape Town, Cape Town, South Africa., Muhire BM; Department of Clinical Laboratory Sciences, University of Cape Town, Cape Town, South Africa., Lolohea S; Tonga College, Tongatapu, Kingdom of Tonga., Halafihi M; Ministry of Agriculture and Food, Forests and Fisheries, Kingdom of Tonga., Lepoint P; Bioversity International, PO Box 18937, Bujumbura, Burundi., Blomme G; Bioversity International Uganda Office, Naguru, Kampala, Uganda., Crew KS; Queensland Department of Agriculture, Fisheries and Forestry, Ecosciences Precinct, GPO Box 267, Brisbane, QLD 4001, Australia., Sharman M; Queensland Department of Agriculture, Fisheries and Forestry, Ecosciences Precinct, GPO Box 267, Brisbane, QLD 4001, Australia., Kraberger S; School of Biological Sciences and Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand., Dayaram A; School of Biological Sciences and Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand., Walters M; School of Biological Sciences and Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand., Collings DA; School of Biological Sciences and Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand., Mabvakure B; South African National Bioinformatics Institute, MRC Unit for Bioinformatics Capacity Development, University of the Western Cape, Bellville, 7535, South Africa., Lemey P; KU Leuven, University of Leuven, Department of Microbiology and Immunology, Rega Institute for Medical Research, Clinical and Epidemiological Virology, Minderbroedersstraat 10, B-3000 Leuven, Belgium., Harkins GW; South African National Bioinformatics Institute, MRC Unit for Bioinformatics Capacity Development, University of the Western Cape, Bellville, 7535, South Africa., Thomas JE; The University of Queensland, Centre for Plant Science, Queensland Alliance for Agriculture and Food Innovation, Ecosciences Precinct, PO Box 46, Brisbane, QLD, 4001, Australia., Varsani A; School of Biological Sciences and Biomolecular Interaction Centre, University of Canterbury, Private Bag 4800, Christchurch, 8140, New Zealand; Department of Clinical Laboratory Sciences, University of Cape Town, Cape Town, South Africa; Department of Plant Pathology and Emerging Pathogens Institute, University of Florida, Gainesville, FL 32611, USA. |
| Abstrakt: |
Banana bunchy top virus (BBTV; family Nanoviridae, genus Babuvirus ) is a multi-component single-stranded DNA virus, which infects banana plants in many regions of the world, often resulting in large-scale crop losses. We analyzed 171 banana leaf samples from fourteen countries and recovered, cloned, and sequenced 855 complete BBTV components including ninety-four full genomes. Importantly, full genomes were determined from eight countries, where previously no full genomes were available (Samoa, Burundi, Republic of Congo, Democratic Republic of Congo, Egypt, Indonesia, the Philippines, and the USA [HI]). Accounting for recombination and genome component reassortment, we examined the geographic structuring of global BBTV populations to reveal that BBTV likely originated in Southeast Asia, that the current global hotspots of BBTV diversity are Southeast Asia/Far East and India, and that BBTV populations circulating elsewhere in the world have all potentially originated from infrequent introductions. Most importantly, we find that rather than the current global BBTV distribution being due to increases in human-mediated movements of bananas over the past few decades, it is more consistent with a pattern of infrequent introductions of the virus to different parts of the world over the past 1,000 years. |
