Evidence map›Paper›PMID 34453100›Full record

ArticleScientific reports2021

2000 years of agriculture in the Atacama desert lead to changes in the distribution and concentration of iron in maize.

Ale Vidal Elgueta, Nathalia Navarro, Mauricio Uribe, Kevin Robe, Frédéric Gaymard, Christian Dubos, María Fernanda Pérez, Hannetz Roschzttardtz

Erratum issuedOpen access · goldAbstract read
PubMed Full text at PMC Publisher
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
2.0field-weighted citation impact, top 13% 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

2 citing papers in PubMed, 11 citations in OpenAlex.

  1. Review
  2. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors at 3 institutions in 2 countries.

Ale Vidal ElguetaDepartamento de Ecología, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile. aevidal@uc.cl.
Nathalia NavarroDepartamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile.
Mauricio UribeDepartamento de Antropología, Universidad de Chile, 7800284, Santiago, Chile.
Kevin RobeBPMP, Univ Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France.
Frédéric GaymardBPMP, Univ Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France.
Christian DubosBPMP, Univ Montpellier, CNRS, INRAE, Institut Agro, Montpellier, France.
María Fernanda PérezDepartamento de Ecología, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile.
Hannetz RoschzttardtzDepartamento de Genética Molecular y Microbiología, Pontificia Universidad Católica de Chile, 8331150, Santiago, Chile. hroschzttardtz@bio.puc.cl.
Pontificia Universidad Católica de Chile · CLCentre National de la Recherche Scientifique · FRUniversity of Chile · CL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

We performed a histological and quantitative study of iron in archaeological maize seeds from prehispanic times recovered from Tarapacá, Atacama Desert. Also, we examined iron distribution changes at the cell level in embryos from ancient versus new varieties of maize. Our results show a progressive decrease in iron concentration from the oldest maize to modern specimens. We interpret the results as an effect of prehispanic agriculture over the micronutrient composition of maize.

Identifiers

PMID34453100
PMCPMC8397760
OpenAlexW3195468432

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.