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原文連結
論文資訊
- 類型：已發表論文
- 日期：2011
摘要
Barley yellow dwarf 病毒 (BYDV) 物種 PAV occurs frequently in irrigated wheat fields worldwide and can be efficiently transmitted by aphids. Isolates of BYDV-PAV from different countries show great divergence both in genomic sequences and pathogenicity. Despite its 經濟al importance, the 遺傳 structure of natural BYDV-PAV 族群s, as well as of the mechanisms maintaining its high 多樣性, remain poorly explored. In this study, we investigate the dynamics of BYDV-PAV 基因組 演化 utilizing time-structured data sets of complete genomic sequences from 58 isolates from different hosts obtained worldwide. First, we observed that BYDV-PAV exhibits a high frequency of homologous recombination. Second, our analysis revealed that BYDV-PAV 基因組 evolves under purifying selection and at a substitution rate similar to other
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