Evidence map›Paper›PMID 29061893›Full record

ArticlePhilosophical transactions of the Royal Society of London. Series B, Biological sciences2017

Nascent life cycles and the emergence of higher-level individuality.

William C Ratcliff, Matthew Herron, Peter L Conlin, Eric Libby

Abstract read
In one paragraph

Article in Philosophical transactions of the Royal Society of London. Series B, Biological sciences, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed.

  1. Article
  2. A New Classification Framework to Understand Evolutionary Transitions in Individuality.BioEssays : news and reviews in molecular, cellular and developmental biology · 2026
    Review
  3. Evolutionary dynamics of nascent multicellular lineages.Proceedings. Biological sciences · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Review
  12. Networks of reliable reputations and cooperation: a review.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2021
    Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Evolution of altruistic cooperation among nascent multicellular organisms.Evolution; international journal of organic evolution · 2019
    Article
  18. Article
  19. The origin of heredity in protocells.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Article
  20. Cooperation and cheating as innovation: insights from cellular societies.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2017
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

4 authors.

William C RatcliffSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA william.ratcliff@biology.gatech.edu.ORCID http://orcid.org/0000-0002-6837-8355
Matthew HerronSchool of Biological Sciences, Georgia Institute of Technology, Atlanta, GA 30332, USA.
Peter L ConlinDepartment of Biology and BEACON Center for the Study of Evolution in Action, University of Washington, Seattle, WA 98195, USA.
Eric LibbySanta Fe Institute, Santa Fe, NM 87501, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Evolutionary transitions in individuality (ETIs) occur when formerly autonomous organisms evolve to become parts of a new, 'higher-level' organism. One of the first major hurdles that must be overcome during an ETI is the emergence of Darwinian evolvability in the higher-level entity (e.g. a multicellular group), and the loss of Darwinian autonomy in the lower-level units (e.g. individual cells). Here, we examine how simple higher-level life cycles are a key innovation during an ETI, allowing this transfer of fitness to occur 'for free'. Specifically, we show how novel life cycles can arise and lead to the origin of higher-level individuals by (i) mitigating conflicts between levels of selection, (ii) engendering the expression of heritable higher-level traits and (iii) allowing selection to efficiently act on these emergent higher-level traits. Further, we compute how canonical early life cycles vary in their ability to fix beneficial mutations via mathematical modelling. Life cycles that lack a persistent lower-level stage and develop clonally are far more likely to fix 'ratcheting' mutations that limit evolutionary reversion to the pre-ETI state. By stabilizing the fragile first steps of an evolutionary transition in individuality, nascent higher-level life cycles may play a crucial role in the origin of complex life.This article is part of the themed issue 'Process and pattern in innovations from cells to societies'.

Indexed as

Biological EvolutionLife Cycle StagesLife History TraitsAnimalsIndividualityModels, GeneticMutationcomplexitycooperationdivision of labourinnovationmajor transitions

Identifiers

PMID29061893
PMCPMC5665808

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.