Evidence map›Paper›PMID 27138342›Full record

ArticleScientific reports2016

Global diversity in the TAS2R38 bitter taste receptor: revisiting a classic evolutionary PROPosal.

Davide S Risso, Massimo Mezzavilla, Luca Pagani, Antonietta Robino, Gabriella Morini, Sergio Tofanelli, Maura Carrai, Daniele Campa, Roberto Barale, Fabio Caradonna and 4 more

Erratum issuedOpen access · goldAbstract read
In one paragraph

Article in Scientific reports, 2016. 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 53 papers.

0numbers the graph read from it
0cells of the map it votes in
53citing papers in PubMed
8.9field-weighted citation impact, top 2% 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

53 citing papers in PubMed, 119 citations in OpenAlex.

  1. Article
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  6. Chemosensory tobacco product toxicology part 2: toxicological testing, assays, and state of the science.Toxicological sciences : an official journal of the Society of Toxicology · 2025
    Review
  7. Article
  8. Article
  9. Bitter taste receptors as sensors of gut luminal contents.Nature reviews. Gastroenterology & hepatology · 2025
    Review
  10. Review
  11. Article
  12. Worldwide study of the taste of bitter medicines and their modifiers.bioRxiv : the preprint server for biology · 2024
    Article
  13. Article
  14. Article
  15. Biomedicines · 2024
    Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

14 authors at 10 institutions in 4 countries.

Davide S RissoNational Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD 20892, USA.
Massimo MezzavillaInstitute for Maternal and Child Health, IRCCS "Burlo Garofolo", University of Trieste, 34137 Trieste, Italy.
Luca PaganiDepartment of Biological, Geological and Environmental Sciences BiGeA, Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, via Selmi 3, 40126 Bologna, Italy.
Antonietta RobinoInstitute for Maternal and Child Health, IRCCS "Burlo Garofolo", University of Trieste, 34137 Trieste, Italy.
Gabriella MoriniUniversity of Gastronomic Sciences, Piazza Vittorio Emanuele 9, Bra, Pollenzo 12042, CN, Italy.
Sergio TofanelliDepartment of Biology, University of Pisa, Via Ghini 13, 56126 Pisa, Italy.
Maura CarraiDepartment of Biology, University of Pisa, Via Ghini 13, 56126 Pisa, Italy.
Daniele CampaDepartment of Biology, University of Pisa, Via Ghini 13, 56126 Pisa, Italy.
Roberto BaraleDepartment of Biology, University of Pisa, Via Ghini 13, 56126 Pisa, Italy.
Fabio CaradonnaBiological, Chemical and Pharmaceutical Sciences and Technologies Department, STEBICEF, Università degli Studi di Palermo, V.le delle Scienze, Edificio 16, 90128 Palermo, Italy.
Paolo GaspariniInstitute for Maternal and Child Health, IRCCS "Burlo Garofolo", University of Trieste, 34137 Trieste, Italy.
Donata LuiselliDepartment of Biological, Geological and Environmental Sciences BiGeA, Laboratory of Molecular Anthropology and Centre for Genome Biology, University of Bologna, via Selmi 3, 40126 Bologna, Italy.
Stephen WoodingHealth Sciences Research Institute, University of California at Merced, 5200 North Lake Road, Merced, CA 95343, USA.
Dennis DraynaNational Institute on Deafness and Other Communication Disorders, NIH, Bethesda, MD 20892, USA.
University of Pisa · ITNational Institute on Deafness and Other Communication Disorders · USIRCCS Materno Infantile Burlo Garofolo · ITSidra Medical and Research Center · QAUniversity of Bologna · ITUniversity of California, Merced · USUniversity of Cambridge · GBUniversity of Gastronomic Sciences · ITUniversity of Palermo · ITUniversity of Trieste · IT

Funding

Genetic Studies of Human Communications DisordersZIADC000046 · NIDCD · NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS · PI DRAYNA, DENNIS · 2009 to 2019
$21.1M
European Research Council 261213European Research Council 295733
6 · The paper itself

Abstract

The ability to taste phenylthiocarbamide (PTC) and 6-n-propylthiouracil (PROP) is a polymorphic trait mediated by the TAS2R38 bitter taste receptor gene. It has long been hypothesized that global genetic diversity at this locus evolved under pervasive pressures from balancing natural selection. However, recent high-resolution population genetic studies of TAS2Rs suggest that demographic events have played a critical role in the evolution of these genes. We here utilized the largest TAS2R38 database yet analyzed, consisting of 5,589 individuals from 105 populations, to examine natural selection, haplotype frequencies and linkage disequilibrium to estimate the effects of both selection and demography on contemporary patterns of variation at this locus. We found signs of an ancient balancing selection acting on this gene but no post Out-Of-Africa departures from neutrality, implying that the current observed patterns of variation can be predominantly explained by demographic, rather than selective events. In addition, we found signatures of ancient selective forces acting on different African TAS2R38 haplotypes. Collectively our results provide evidence for a relaxation of recent selective forces acting on this gene and a revised hypothesis for the origins of the present-day worldwide distribution of TAS2R38 haplotypes.

Indexed as

Evolution, MolecularDatabases, GeneticGenetic VariationHaplotypesHumansLinkage DisequilibriumPhenylthioureaPropylthiouracilReceptors, G-Protein-CoupledSelection, GeneticTasteTaste Receptors, Type 2PhenylthioureaPropylthiouracilReceptors, G-Protein-CoupledTaste Receptors, Type 2

Identifiers

PMID27138342
PMCPMC4853779
OpenAlexW2347031058

What OpenQuestion holds

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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.