Evidence map›Paper›PMID 33026116›Full record

ArticleAmerican journal of botany2020

Phylogenetic analysis of fossil flowers using an angiosperm-wide data set: proof-of-concept and challenges ahead.

Jürg Schönenberger, Maria von Balthazar, Andrea López Martínez, Béatrice Albert, Charlotte Prieu, Susana Magallón, Hervé Sauquet

Abstract read
In one paragraph

Article in American journal of botany, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers.

0numbers the graph read from it
0cells of the map it votes in
11citing 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

11 citing papers in PubMed.

  1. Article
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  8. Review
  9. Refined Interpretation of the Pistillate Flower inFrontiers in cell and developmental biology · 2022
    Article
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  11. 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

7 authors.

Jürg SchönenbergerDepartment of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, A-1030, Austria.ORCID 0000-0001-6791-2731
Maria von BalthazarDepartment of Botany and Biodiversity Research, University of Vienna, Rennweg 14, Vienna, A-1030, Austria.
Andrea López MartínezInstituto de Biología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México City, 04510, Mexico.
Béatrice AlbertEcologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, 91400, France.
Charlotte PrieuEcologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, 91400, France.
Susana MagallónInstituto de Biología, Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria, Coyoacán, México City, 04510, Mexico.ORCID 0000-0002-6838-7497
Hervé SauquetEcologie Systématique Evolution, Univ. Paris-Sud, CNRS, AgroParisTech, Université Paris-Saclay, Orsay, 91400, France.ORCID 0000-0001-8305-3236

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

premiseSignificant paleobotanical discoveries in recent decades have considerably improved our understanding of the early evolution of angiosperms and their flowers. However, our ability to test the systematic placement of fossil flowers on the basis of phylogenetic analyses has remained limited, mainly due to the lack of an adequate, angiosperm-wide morphological data set for extant taxa. Earlier attempts to place fossil flowers phylogenetically were, therefore, forced to make prior qualitative assessments of the potential systematic position of fossils and to restrict phylogenetic analyses to selected angiosperm subgroups.

methodsWe conduct angiosperm-wide molecular backbone analyses of 10 fossil flower taxa selected from the Cretaceous record. Our analyses make use of a floral trait data set built within the framework of the eFLOWER initiative. We provide an updated version of this data set containing data for 28 floral and two pollen traits for 792 extant species representing 372 angiosperm families.

resultsWe find that some fossils are placed congruently with earlier hypotheses while others are found in positions that had not been suggested previously. A few take up equivocal positions, including the stem branches of large clades.

conclusionsOur study provides an objective approach to test for the phylogenetic position of fossil flowers across angiosperms. Such analyses may provide a complementary tool for paleobotanical studies, allowing for a more comprehensive understanding of fossil phylogenetic relationships in angiosperms. Ongoing work focused on extending the sampling of extant taxa and the number of floral traits will further improve the applicability and accuracy of our approach.

Indexed as

FossilsMagnoliopsidaBiological EvolutionFlowersPhylogenyPollenangiospermseFLOWERfloral evolutionfloral structurefossil flowersmesofossilsmolecular backbonephylogenetic analysis

Identifiers

PMID33026116
PMCPMC7702048

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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.