Evidence map›Paper›PMID 21174128›Full record

ReviewSexual plant reproduction2011

Evolution of reproductive development in the volvocine algae.

Armin Hallmann

Open access · hybridAbstract readReview
In one paragraph

Review in Sexual plant reproduction, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
2.4field-weighted citation impact, top 11% of its field
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

34 citing papers in PubMed, 87 citations in OpenAlex.

  1. Review
  2. A population threshold for dedicated teaching.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Article
  4. Spatiotemporal distribution of the glycoprotein pherophorin II reveals stochastic geometry of the growing ECM ofProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  5. Mosaic of somatic mutations in one of Earth's largest organisms, Pando.bioRxiv : the preprint server for biology · 2025
    Article
  6. Sensing a rainbow of colors: algal photoreceptors.Frontiers in plant science · 2025
    Review
  7. Article
  8. Article
  9. Article
  10. Bacterial marginolactones trigger formation of algal gloeocapsoids, protective aggregates on the verge of multicellularity.Proceedings of the National Academy of Sciences of the United States of America · 2021
    Article
  11. Article
  12. Article
  13. Quiescence Through the Prism of Evolution.Frontiers in cell and developmental biology · 2021
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article
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

1 author at 1 institution in 1 country.

Armin HallmannDepartment of Cellular and Developmental Biology of Plants, University of Bielefeld, Universitätsstr. 25, 33615 Bielefeld, Germany. armin.hallmann@gmx.de
Bielefeld University · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The evolution of multicellularity, the separation of germline cells from sterile somatic cells, and the generation of a male-female dichotomy are certainly among the greatest innovations of eukaryotes. Remarkably, phylogenetic analysis suggests that the shift from simple to complex, differentiated multicellularity was not a unique progression in the evolution of life, but in fact a quite frequent event. The spheroidal green alga Volvox and its close relatives, the volvocine algae, span the full range of organizational complexity, from unicellular and colonial genera to multicellular genera with a full germ-soma division of labor and male-female dichotomy; thus, these algae are ideal model organisms for addressing fundamental issues related to the transition to multicellularity and for discovering universal rules that characterize this transition. Of all living species, Volvox carteri represents the simplest version of an immortal germline producing specialized somatic cells. This cellular specialization involved the emergence of mortality and the production of the first dead ancestors in the evolution of this lineage. Volvocine algae therefore exemplify the evolution of cellular cooperation from cellular autonomy. They also serve as a prime example of the evolution of complex traits by a few successive, small steps. Thus, we learn from volvocine algae that the evolutionary transition to complex, multicellular life is probably much easier to achieve than is commonly believed.

Indexed as

Biological EvolutionGerm CellsPhylogenyReproductionVolvox

Identifiers

PMID21174128
PMCPMC3098969
OpenAlexW2076138548

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.