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Article

Stem cells are units of natural selection for tissue formation, for germline development, and in cancer development.

Proceedings of the National Academy of Sciences of the United States of America - 21 Jul 2015

Weissman Irving L

Abstract excerpt

It is obvious that natural selection operates at the level of individuals and collections of individuals. Nearly two decades ago we showed that in multi-individual colonies of protochordate colonial tunicates sharing a blood circulation, there exists an exchange of somatic stem cells and germline stem cells, resulting in somatic chimeras and stem cell competitions for gonadal niches. Stem cells are unlike other...

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Identifiers

PMID: 26195745
DOI: 10.1073/pnas.1505464112
PMCID: PMC4517284

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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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