Evidence map›Paper›PMID 37993882›Full record

ArticleBMC biology2023

A pangenome graph reference of 30 chicken genomes allows genotyping of large and complex structural variants.

Edward S Rice, Antton Alberdi, James Alfieri, Giridhar Athrey, Jennifer R Balacco, Philippe Bardou, Heath Blackmon, Mathieu Charles, Hans H Cheng, Olivier Fedrigo and 12 more

Open access · goldAbstract read
In one paragraph

Article in BMC biology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
11.0field-weighted citation impact, top 1% 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

35 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Structural Variation and Its Roles in Plant Genomes.Plants (Basel, Switzerland) · 2026
    Review
  5. Article
  6. Article
  7. Review
  8. Article
  9. Article
  10. Review
  11. Review
  12. Article
  13. Review
  14. Article
  15. Review
  16. Evolution letters · 2025
    Article
  17. Article
  18. Article
  19. Article
  20. Application of Omics in Donkey Meat Research: A Review.Animals : an open access journal from MDPI · 2025
    Review
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

22 authors at 13 institutions in 7 countries.

Edward S RiceBond Life Sciences Center, University of Missouri, Columbia, MO, USA.ORCID 0000-0002-2961-217X
Antton AlberdiCenter for Evolutionary Hologenomics, Globe Institute, University of Copenhagen (UCPH), Copenhagen, Denmark.
James AlfieriDepartment of Ecology & Evolutionary Biology, Texas A&M University, College Station, TX, USA.
Giridhar AthreyDepartment of Poultry Science, Texas A&M University, College Station, TX, USA.
Jennifer R BalaccoVertebrate Genome Laboratory, The Rockefeller University, New York, NY, USA.
Philippe BardouSigenae, GenPhySE, Université de Toulouse, INRAE, ENVT, Castanet Tolosan, 31326, France.
Heath BlackmonDepartment of Biology, Texas A&M University, College Station, TX, USA.
Mathieu CharlesUniversity Paris-Saclay, INRAE, AgroParisTech, GABI, Sigenae, Jouy-en-Josas, France.
Hans H ChengAvian Disease and Oncology Laboratory, USDA, ARS, USNPRC, East Lansing, MI, USA.
Olivier FedrigoVertebrate Genome Laboratory, The Rockefeller University, New York, NY, USA.
Steven R FiddamanDepartment of Biology, University of Oxford, Oxford, OX1 3SZ, UK.
Giulio FormentiVertebrate Genome Laboratory, The Rockefeller University, New York, NY, USA.
Laurent A F FrantzFaculty of Veterinary Medicine, Ludwig-Maximilians-Universität, Munich, Germany.
M Thomas P GilbertCenter for Evolutionary Hologenomics, Globe Institute, University of Copenhagen (UCPH), Copenhagen, Denmark.
Cari J HearnAvian Disease and Oncology Laboratory, USDA, ARS, USNPRC, East Lansing, MI, USA.
Erich D JarvisVertebrate Genome Laboratory, The Rockefeller University, New York, NY, USA.
Christophe KloppSigenae, Genotoul Bioinfo, MIAT UR875, INRAE, Castanet Tolosan, France.
Sofia MarcosCenter for Evolutionary Hologenomics, Globe Institute, University of Copenhagen (UCPH), Copenhagen, Denmark.
Andrew S MasonDepartment of Biology, The University of York, York, UK.
Deborah Velez-IrizarryAvian Disease and Oncology Laboratory, USDA, ARS, USNPRC, East Lansing, MI, USA.
Luohao XuKey Laboratory of Freshwater Fish Reproduction and Development (Ministry of Education), Key Laboratory of Aquatic Science of Chongqing, School of Life Sciences, Southwest University, Chongqing, 400715, China.
Wesley C WarrenDepartment of Animal Sciences, University of Missouri, Columbia, MO, USA. warrenwc@missouri.edu.
Rockefeller University · USTexas A&M University · USUniversity of Copenhagen · DKU.S. National Poultry Research Center · USUniversity of Missouri · USAgroParisTech · FRÉcole Nationale Vétérinaire de Toulouse · FRHoward Hughes Medical Institute · USInstitut National de Recherche pour l'Agriculture, l'Alimentation et l'Environnement · FRQueen Mary University of London · GBSouthwest University · CNUniversity of Oxford · GBUniversity of York · GB

Funding

HORIZON EUROPE Research Infrastructures 817729National Institute of Food and Agriculture 2020-67015-31574National Institute of Food and Agriculture 2022-67015-36218
6 · The paper itself

Abstract

backgroundThe red junglefowl, the wild outgroup of domestic chickens, has historically served as a reference for genomic studies of domestic chickens. These studies have provided insight into the etiology of traits of commercial importance. However, the use of a single reference genome does not capture diversity present among modern breeds, many of which have accumulated molecular changes due to drift and selection. While reference-based resequencing is well-suited to cataloging simple variants such as single-nucleotide changes and short insertions and deletions, it is mostly inadequate to discover more complex structural variation in the genome.

methodsWe present a pangenome for the domestic chicken consisting of thirty assemblies of chickens from different breeds and research lines.

resultsWe demonstrate how this pangenome can be used to catalog structural variants present in modern breeds and untangle complex nested variation. We show that alignment of short reads from 100 diverse wild and domestic chickens to this pangenome reduces reference bias by 38%, which affects downstream genotyping results. This approach also allows for the accurate genotyping of a large and complex pair of structural variants at the K feathering locus using short reads, which would not be possible using a linear reference.

conclusionsWe expect that this new paradigm of genomic reference will allow better pinpointing of exact mutations responsible for specific phenotypes, which will in turn be necessary for breeding chickens that meet new sustainability criteria and are resilient to quickly evolving pathogen threats.

Indexed as

ChickensGenomeAnimalsGenomicsGenotypeSequence Analysis, DNAev21Gallus gallusIGLL1K locus

Identifiers

PMID37993882
PMCPMC10664547
OpenAlexW4388904731

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.