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原文連結
論文資訊
- 類型：已發表論文
- 日期：2021-11-29
摘要
How new traits originate in 演化 is a fundamental question of 演化ary biology. When such traits arise, they can either be immediately beneficial in their environment of origin, or they may become beneficial only in a future environment. Compared to immediately beneficial novel traits, novel traits without immediate benefits remain poorly studied. Here we use experimental 演化 to study novel traits that are not immediately beneficial but that allow 細菌 to survive in new environments. Specifically, we evolved multiple E. coli 族群s in five 抗生素s with different mechanisms of action, and then determined their ability to grow in more than 200 environments that are different from the environment in which they evolved. Our 族群s evolved viability in multiple environments that contain not just clinically rele
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