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原文連結
論文資訊
- 類型：已發表論文
- 日期：2012
摘要
For multihost pathogens, 適應 to multiple hosts has important implications for both applied and basic research. At the applied level, it is one of the main factors determining the probability and the severity of emerging 疾病 outbreaks. At the basic level, it is thought to be a key mechanism for the maintenance of 遺傳 多樣性 both in host and pathogen 物種. Using Tobacco etch poty病毒 (TEV) and four natural hosts, we have designed an 演化 experiment whose strength and novelty are the use of complex multicellular host organism as hosts and a high level of replication of different 演化ary histories and lineages. A pattern of local 適應, characterized by a higher infectivity and virulence on host(s) encountered during the experimental 演化 was found. Local 適應 only had a cost in terms of performance on other hosts
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