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摘要:
Potyviruses are major constraints to grain legume production by causing significant yield losses. Potyviruses infecting Bambara groundnut (Vigna subterranea) were investigated in Burkina Faso. Leaf samples collected from three agroclimatic zones were subjected to RT-PCR and sequence analyses. Of a total of 135 samples, 36 (26.67%) were detected positive in RT-PCR tests using potyvirus universal primers. Analysis of full coat protein (cp) sequences from 24 isolates revealed the occurrence of three groups of Bambara groundnut-infecting potyviruses. Virus isolates in group 1 shared 94.5% - 100% nucleotide (nt) identity with CABMV whereas those in group 2 and group 3 were distantly related Bean common necrosis virus (BCMNV) and Passiflora virus Ugandan which were their respective closest potyviruses. Group 2 shared 77.1% nt and 78.8% - 79.9% aa identity with BCMNV and group 3 shared 77.3% - 78.3% nt and 80.7% - 81.5% aa identity with Passiflora virus Ugandan. All three groups were confirmed by phylogenetic analyses. Taking into account potyvirus demarcation criteria, group 1 isolates belonged to CABMV species. Group 2 and group 3 were assigned to a potentially new potyviruses species and designated Bambara groundnut potyvirus 1 (BGPV1) and Bambara groundnut potyvirus 2 (BGPV2).
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篇名 Molecular Characterization of a Large Diversity of Bambara Groundnut Potyviruses (<i>Vigna subterranea</i>(L.) Verdc.) in Burkina Faso
来源期刊 生命科学与技术进展(英文) 学科 农学
关键词 Bambara GROUNDNUT POTYVIRUS Characterization Coat Protein Sequence DIVERSITY
年,卷(期) 2019,(9) 所属期刊栏目
研究方向 页码范围 270-281
页数 12页 分类号 S43
字数 语种
DOI
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Bambara
GROUNDNUT
POTYVIRUS
Characterization
Coat
Protein
Sequence
DIVERSITY
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期刊影响力
生命科学与技术进展(英文)
月刊
2156-8456
武汉市江夏区汤逊湖北路38号光谷总部空间
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314
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