Evidence map›Paper›PMID 17470535›Full record

ArticleGenes & development2007

A complex system of small RNAs in the unicellular green alga Chlamydomonas reinhardtii.

Tao Zhao, Guanglin Li, Shijun Mi, Shan Li, Gregory J Hannon, Xiu-Jie Wang, Yijun Qi

Open access · diamondAbstract read
In one paragraph

Article in Genes & development, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 184 papers.

0numbers the graph read from it
0cells of the map it votes in
184citing 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

184 citing papers in PubMed, 401 citations in OpenAlex.

  1. Article
  2. Review
  3. Identification ofFrontiers in microbiology · 2025
    Article
  4. Article
  5. Article
  6. Small RNA-mediated silencing of phototropin suppresses the induction of photoprotection in the green algaProceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  7. Article
  8. A comparative study of microRNAs in different stages ofFrontiers in veterinary science · 2022
    Article
  9. Article
  10. Article
  11. MicroRNA Expression Profile Analysis ofBioengineering (Basel, Switzerland) · 2021
    Article
  12. Article
  13. Review
  14. Review
  15. The roles of microRNAs in mouse development.Nature reviews. Genetics · 2021
    Review
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review

124 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 3 institutions in 2 countries.

Tao ZhaoNational Institute of Biological Sciences, Zhongguancun Life Science Park, Beijing 102206, China.
Guanglin Li
Shijun Mi
Shan Li
Gregory J Hannon
Xiu-Jie Wang
Yijun Qi
National Institute of Biological Sciences, Beijing · CNState Key Laboratory of Plant Genomics · CNHoward Hughes Medical Institute · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Endogenous small RNAs function in RNA interference (RNAi) pathways to control gene expression through mRNA cleavage, translational repression, or chromatin modification. Plants and animals contain many microRNAs (miRNAs) that play vital roles in development, including helping to specify cell type and tissue identity. To date, no miRNAs have been reported in unicellular organisms. Here we show that Chlamydomonas reinhardtii, a unicellular green alga, encodes many miRNAs. We also show that a Chlamydomonas miRNA can direct the cleavage of its target mRNA in vivo and in vitro. We further show that the expression of some miRNAs/Candidates increases or decreases during Chlamydomonas gametogenesis. In addition to miRNAs, Chlamydomonas harbors other types of small RNAs including phased small interfering RNAs (siRNAs) that are reminiscent of plant trans-acting siRNAs, as well as siRNAs originating from protein-coding genes and transposons. Our findings suggest that the miRNA pathway and some siRNA pathways are ancient mechanisms of gene regulation that evolved prior to the emergence of multicellularity.

Indexed as

Biological EvolutionAnimalsBase PairingBase SequenceBlotting, NorthernChlamydomonas reinhardtiiComputational BiologyGene Expression ProfilingGene Expression RegulationGenomicsMicroRNAsMolecular Sequence DataRNA InterferenceRNA, Small InterferingSequence Analysis, DNAMicroRNAsRNA, Small Interfering

Identifiers

PMID17470535
PMCPMC1865491
OpenAlexW2142349465

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.