First Report of Distinct Bamboo mosaic virus (BaMV) Isolates Infecting Bambusa funghomii in Vietnam and the Identification of a Highly Variable Region in the BaMV Genome |
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Authors: | Ying-Wen Huang Chin-Wei Lee Na-Sheng Lin Ha Viet Cuong Chung-Chi Hu Yau-Heiu Hsu |
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Affiliation: | 1.Graduate Institute of Biotechnology, National Chung Hsing University, 250 Kuo-Kuang Rd, Taichung 40227, Taiwan; (Y.-W.H.); (C.-W.L.);2.Advanced Plant Biotechnology Center, National Chung Hsing University, Taichung 40227, Taiwan;3.Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan;4.Department of Plant Pathology, Research Center for Tropic Plant Diseases, Vietnam National University of Agriculture, Hanoi 100915, Vietnam; |
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Abstract: | New isolates of the Bamboo mosaic virus (BaMV) were identified in Bambusa funghomii bamboo in Vietnam. Sequence analyses revealed that the Vietnam isolates are distinct from all known BaMV strains, sharing the highest sequence identities (about 77%) with the Yoshi isolates reported in California, USA. Unique satellite RNAs were also found to be associated with the BaMV Vietnam isolates. A possible recombination event was detected in the genome of BaMV-VN2. A highly variable region was identified in the ORF1 gene, in between the methyl transferase domain and helicase domain. These results revealed the presence of unique BaMV isolates in an additional bamboo species in one more country, Vietnam, and provided evidence in support of the possible involvement of environmental or host factors in the diversification and evolution of BaMV. |
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Keywords: | Bamboo mosaic virus Potexvirus satellite RNA phylogenetic analysis genetic marker diversity classification |
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