Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1126/science.aam5979 |
Contingency and determinism in evolution: Replaying life's tape | |
Blount, Zachary D.1,2,3; Lenski, Richard E.1,2; Losos, Jonathan B.4 | |
2018-11-09 | |
发表期刊 | SCIENCE
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ISSN | 0036-8075 |
EISSN | 1095-9203 |
出版年 | 2018 |
卷号 | 362期号:6415 |
文章类型 | Review |
语种 | 英语 |
国家 | USA |
英文摘要 | Historical processes display some degree of "contingency," meaning their outcomes are sensitive to seemingly inconsequential events that can fundamentally change the future. Contingency is what makes historical outcomes unpredictable. Unlike many other natural phenomena, evolution is a historical process. Evolutionary change is often driven by the deterministic force of natural selection, but natural selection works upon variation that arises unpredictably through time by random mutation, and even beneficial mutations can be lost by chance through genetic drift. Moreover, evolution has taken place within a planetary environment with a particular history of its own. This tension between determinism and contingency makes evolutionary biology a kind of hybrid between science and history. While philosophers of science examine the nuances of contingency, biologists have performed many empirical studies of evolutionary repeatability and contingency. Here, we review the experimental and comparative evidence from these studies. Replicate populations in evolutionary "replay" experiments often show parallel changes, especially in overall performance, although idiosyncratic outcomes show that the particulars of a lineage's history can affect which of several evolutionary paths is taken. Comparative biologists have found many notable examples of convergent adaptation to similar conditions, but quantification of how frequently such convergence occurs is difficult. On balance, the evidence indicates that evolution tends to be surprisingly repeatable among closely related lineages, but disparate outcomes become more likely as the footprint of history grows deeper. Ongoing research on the structure of adaptive landscapes is providing additional insight into the interplay of fate and chance in the evolutionary process. |
领域 | 地球科学 ; 气候变化 ; 资源环境 |
收录类别 | SCI-E ; SSCI |
WOS记录号 | WOS:000450474500031 |
WOS关键词 | TERM EXPERIMENTAL EVOLUTION ; ESCHERICHIA-COLI ; HISTORICAL CONTINGENCY ; CONVERGENT EVOLUTION ; ADAPTIVE RADIATION ; KEY INNOVATION ; EVO-DEVO ; EVOLVING POPULATIONS ; GENETIC PARALLELISM ; CITRATE UTILIZATION |
WOS类目 | Multidisciplinary Sciences |
WOS研究方向 | Science & Technology - Other Topics |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/200041 |
专题 | 地球科学 资源环境科学 气候变化 |
作者单位 | 1.Michigan State Univ, Dept Microbiol & Mol Genet, E Lansing, MI 48824 USA; 2.Michigan State Univ, BEACON Ctr Study Evolut Act, E Lansing, MI 48824 USA; 3.Kenyon Coll, Dept Biol, Gambier, OH 43022 USA; 4.Washington Univ, Dept Biol, Campus Box 1137, St Louis, MO 63130 USA |
推荐引用方式 GB/T 7714 | Blount, Zachary D.,Lenski, Richard E.,Losos, Jonathan B.. Contingency and determinism in evolution: Replaying life's tape[J]. SCIENCE,2018,362(6415). |
APA | Blount, Zachary D.,Lenski, Richard E.,&Losos, Jonathan B..(2018).Contingency and determinism in evolution: Replaying life's tape.SCIENCE,362(6415). |
MLA | Blount, Zachary D.,et al."Contingency and determinism in evolution: Replaying life's tape".SCIENCE 362.6415(2018). |
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