Evidence map›Paper›PMID 33871652›Full record

ArticleThe Plant cell2021

Complex evolution of novel red floral color in Petunia.

Andrea E Berardi, Korinna Esfeld, Lea Jäggi, Therese Mandel, Gina M Cannarozzi, Cris Kuhlemeier

Open access · bronzeAbstract read
In one paragraph

Article in The Plant cell, 2021. 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
4.9field-weighted citation impact, top 4% 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, 80 citations in OpenAlex.

  1. Article
  2. Review
  3. Article
  4. CanGenes · 2025
    Article
  5. The GenusPlants (Basel, Switzerland) · 2025
    Article
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Article
  12. Review
  13. Article
  14. A persistent major mutation in canonical jasmonate signaling is embedded in an herbivory-elicited gene network.Proceedings of the National Academy of Sciences of the United States of America · 2023
    Article
  15. Article
  16. Article
  17. Review
  18. Article
  19. Serving Two Masters: Effect ofAntibiotics (Basel, Switzerland) · 2023
    Article
  20. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Andrea E BerardiInstitute of Plant Sciences, University of Bern, Bern 3013, Switzerland.ORCID 0000-0002-6827-0774
Korinna EsfeldInstitute of Plant Sciences, University of Bern, Bern 3013, Switzerland.ORCID 0000-0002-7674-663X
Lea JäggiInstitute of Plant Sciences, University of Bern, Bern 3013, Switzerland.
Therese MandelInstitute of Plant Sciences, University of Bern, Bern 3013, Switzerland.ORCID 0000-0002-6507-1470
Gina M CannarozziInstitute of Plant Sciences, University of Bern, Bern 3013, Switzerland.ORCID 0000-0002-0704-663X
Cris KuhlemeierInstitute of Plant Sciences, University of Bern, Bern 3013, Switzerland.ORCID 0000-0003-2440-5937
University of Bern · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Red flower color has arisen multiple times and is generally associated with hummingbird pollination. The majority of evolutionary transitions to red color proceeded from purple lineages and tend to be genetically simple, almost always involving a few loss-of-function mutations of major phenotypic effect. Here we report on the complex evolution of a novel red floral color in the hummingbird-pollinated Petunia exserta (Solanaceae) from a colorless ancestor. The presence of a red color is remarkable because the genus cannot synthesize red anthocyanins and P. exserta retains a nonfunctional copy of the key MYB transcription factor AN2. We show that moderate upregulation and a shift in tissue specificity of an AN2 paralog, DEEP PURPLE, restores anthocyanin biosynthesis in P. exserta. An essential shift in anthocyanin hydroxylation occurred through rebalancing the expression of three hydroxylating genes. Furthermore, the downregulation of an acyltransferase promotes reddish hues in typically purple pigments by preventing acyl group decoration of anthocyanins. This study presents a rare case of a genetically complex evolutionary transition toward the gain of a novel red color.

Indexed as

FlowersPetuniaPlant ProteinsSolanaceaeTranscription FactorsPlant ProteinsTranscription Factors

Identifiers

PMID33871652
PMCPMC8364234
OpenAlexW3155227036

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.