Evidence map›Paper›PMID 33930151›Full record

ArticleMolecular biology and evolution2021

Brassica rapa Domestication: Untangling Wild and Feral Forms and Convergence of Crop Morphotypes.

Alex C McAlvay, Aaron P Ragsdale, Makenzie E Mabry, Xinshuai Qi, Kevin A Bird, Pablo Velasco, Hong An, J Chris Pires, Eve Emshwiller

Abstract readComparative Study
In one paragraph

Article in Molecular biology and evolution, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers.

0numbers the graph read from it
0cells of the map it votes in
33citing 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

33 citing papers in PubMed.

  1. Article
  2. Pan-Genomic Dissection of GH1 β-Glucosidases inPlants (Basel, Switzerland) · 2026
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  4. On the Use of the Neglected Edible PlantsPlants (Basel, Switzerland) · 2026
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  6. Article
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  8. Article
  9. Article
  10. Review
  11. The genomics of t'ef and finger millet domestication and spread.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2025
    Article
  12. Article
  13. Natural variations inProceedings of the National Academy of Sciences of the United States of America · 2025
    Article
  14. Article
  15. Article
  16. Article
  17. Chemical Profile and Biological Activities ofFoods (Basel, Switzerland) · 2024
    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

9 authors.

Alex C McAlvayInstitute of Economic Botany, New York Botanical Garden, The Bronx, New York, NY, USA.ORCID 0000-0001-7051-2018
Aaron P RagsdaleMcGill Genome Center and Department of Human Genetics, McGill University, Montreal, Canada; Unit of Advanced Genomics, LANGEBIO, Irapuato, Mexico.ORCID 0000-0003-0715-3432
Makenzie E MabryDivision of Biological Sciences, University of Missouri, Columbia, MO, USA.
Xinshuai QiDepartment of Ecology and Evolutionary Biology, University of Arizona, Tucson, AZ, USA.
Kevin A BirdEcology, Evolutionary Biology, and Behavior and Department of Horticulture, Michigan State University, East Lansing, MI, USA.
Pablo VelascoMisión Biológica de Galicia, Pontevedra, Spain.
Hong AnDivision of Biological Sciences, University of Missouri, Columbia, MO, USA.
J Chris PiresDivision of Biological Sciences, University of Missouri, Columbia, MO, USA.
Eve EmshwillerDepartment of Botany, University of Wisconsin-Madison, Madison, WI, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The study of domestication contributes to our knowledge of evolution and crop genetic resources. Human selection has shaped wild Brassica rapa into diverse turnip, leafy, and oilseed crops. Despite its worldwide economic importance and potential as a model for understanding diversification under domestication, insights into the number of domestication events and initial crop(s) domesticated in B. rapa have been limited due to a lack of clarity about the wild or feral status of conspecific noncrop relatives. To address this gap and reconstruct the domestication history of B. rapa, we analyzed 68,468 genotyping-by-sequencing-derived single nucleotide polymorphisms for 416 samples in the largest diversity panel of domesticated and weedy B. rapa to date. To further understand the center of origin, we modeled the potential range of wild B. rapa during the mid-Holocene. Our analyses of genetic diversity across B. rapa morphotypes suggest that noncrop samples from the Caucasus, Siberia, and Italy may be truly wild, whereas those occurring in the Americas and much of Europe are feral. Clustering, tree-based analyses, and parameterized demographic inference further indicate that turnips were likely the first crop type domesticated, from which leafy types in East Asia and Europe were selected from distinct lineages. These findings clarify the domestication history and nature of wild crop genetic resources for B. rapa, which provides the first step toward investigating cases of possible parallel selection, the domestication and feralization syndrome, and novel germplasm for Brassica crop improvement.

Indexed as

DomesticationModels, GeneticBrassica rapaCrops, AgriculturalGenetic IntrogressionGenetic VariationGenotyping TechniquesPhylogeographyPlant WeedsSelection, Geneticartificial selectiondedomesticationgenotyping-by-sequencingnapa cabbageoilseedsturnip

Identifiers

PMID33930151
PMCPMC8321528

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Registered trials

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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.