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原文連結
論文資訊
- 類型：已發表論文
- 日期：2022-10-06
摘要
Recent experiments show that adaptive Darwinian 演化 in one environment can lead to the 湧現 of multiple new traits that provide no immediate benefit in this environment. Such latent non-adaptive traits, however, can become adaptive in future environments. We do not know whether 突變 or environment-driven selection is more important for the 湧現 of such traits. To find out, we evolve multiple wild-type and mutator E. coli 族群s under two 突變 rates in simple (single 抗生素) environments and in complex (multi-抗生素) environments. We then assay the viability of evolved 族群s in dozens of new environments and show that all 族群s become viable in multiple new environments different from those they had evolved in. The number of these new environments increases with environmental complexity but not with the 突變 rate.
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