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Article

Punctuated evolution caused by selection of rare beneficial mutations.

Science (New York, N.Y.) - 21 Jun 1996

Elena S F, Cooper V S, Lenski R E

Abstract excerpt

For more than two decades there has been intense debate over the hypothesis that most morphological evolution occurs during relatively brief episodes of rapid change that punctuate much longer periods of stasis. A clear and unambiguous case of punctuated evolution is presented for cell size in a population of Escherichia coli evolving for 3000 generations in a constant environment. The punctuation is caused by...

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PMID: 8650581
DOI: 10.1126/science.272.5269.1802

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

Source receipt: pubmed, retrieved 7 Sept 2026.

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