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原文連結
論文資訊
- 類型：已發表論文
- 日期：2012-07-27
摘要
Potato 病毒 Y (PVY) is an important plant pathogen with a wide host range that includes, among others, potato, tobacco, tomato and pepper. The coat 蛋白質 (CP) of PVY has been commonly used in 系統發育 studies for strain classification. In this study, we used a pool of 292 CP sequences from isolates collected worldwide. After detecting and removing recombinant sequences, we applied 貝氏 techniques to study the influence of geography and host 物種 in CP 族群 structure and dynamics. Finally, we performed selection and covariation analyses to identify specific amino acids involved in 適應. Our results show that PVY CP diversification is significantly accounted for by both geographical and host-driven 適應s. Amino acid positions detected as positively selected concentrate in the N-terminal region of the 蛋白質. Som
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