本頁只刊出中文翻譯與中文說明；英文原文請見下方原文連結。
原文連結
論文資訊
- 類型：已發表論文
- 日期：2008
摘要
Host-range expansion is thought to allow 病毒es to broaden their ecological niches by allowing access to new resources. However, traits governing the infection of multiple hosts may decrease fitness in the original one due to the pleiotropic effect of adaptive 突變s that may give rise to fitness tradeoffs across hosts. Here, we have experimentally examined the consequences of host-specialization in the plant pathogen Tobacco etch poty病毒 (TEV). Replicate 族群s of TEV were allowed to evolve for 15 serial undiluted passages on the original tobacco host or on pepper, a novel host. Virulence and 生物ly active viral load were evaluated during the course of the experiment for each lineage on both potential hosts. In agreement with the tradeoff hypothesis, lineages evolved in the novel host experienced su
※ 此為已發表論文，全文需透過期刊付費取得