Evidence map›Paper›PMID 26804558›Full record

ArticleCurrent biology : CB2016

Divergence and Functional Degradation of a Sex Chromosome-like Supergene.

Elaina M Tuttle, Alan O Bergland, Marisa L Korody, Michael S Brewer, Daniel J Newhouse, Patrick Minx, Maria Stager, Adam Betuel, Zachary A Cheviron, Wesley C Warren and 2 more

Open access · bronzeAbstract read
In one paragraph

Article in Current biology : CB, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 149 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
149citing papers in PubMed, 1 pooled it
38.1field-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

149 citing papers in PubMed, 1 synthesis or guideline pooled it, 389 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Multiple Origins of a Sex Ratio Supergene in Formica Ants.Molecular biology and evolution · 2026
    Article
  6. Article
  7. Review
  8. Article
  9. A century of theories of balancing selection.Biological reviews of the Cambridge Philosophical Society · 2026
    Review
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Article
  17. Article
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89 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

12 authors at 5 institutions in 1 country.

Elaina M TuttleDepartment of Biology and The Center for Genomic Advocacy, Indiana State University, 600 Chestnut Street, Terre Haute, IN 47809, USA. Electronic address: elaina.tuttle@indstate.edu.
Alan O BerglandDepartment of Biology, Stanford University, 371 Serra Mall, Stanford, CA 94305-5020, USA.
Marisa L KorodyDepartment of Biology and The Center for Genomic Advocacy, Indiana State University, 600 Chestnut Street, Terre Haute, IN 47809, USA.
Michael S BrewerDepartment of Biology, East Carolina University, Howell Science Complex, Greenville, NC 27858, USA.
Daniel J NewhouseDepartment of Biology, East Carolina University, Howell Science Complex, Greenville, NC 27858, USA.
Patrick MinxMcDonnell Genome Institute, Washington University School of Medicine, 4444 Forest Park Avenue, Campus Box 8501, St. Louis, MO 63108, USA.
Maria StagerDepartment of Animal Biology, School of Integrative Biology, University of Illinois, Urbana-Champaign, IL 61801, USA.
Adam BetuelDepartment of Biology and The Center for Genomic Advocacy, Indiana State University, 600 Chestnut Street, Terre Haute, IN 47809, USA.
Zachary A ChevironDepartment of Animal Biology, School of Integrative Biology, University of Illinois, Urbana-Champaign, IL 61801, USA.
Wesley C WarrenMcDonnell Genome Institute, Washington University School of Medicine, 4444 Forest Park Avenue, Campus Box 8501, St. Louis, MO 63108, USA.
Rusty A GonserDepartment of Biology and The Center for Genomic Advocacy, Indiana State University, 600 Chestnut Street, Terre Haute, IN 47809, USA.
Christopher N BalakrishnanDepartment of Biology, East Carolina University, Howell Science Complex, Greenville, NC 27858, USA.
Indiana State University · USEast Carolina University · USJames S. McDonnell Foundation · USUniversity of Illinois Urbana-Champaign · USStanford University · US

Funding

Genomics of rapid adaptation on seasonal timescales in D. melanogasterR01GM100366 · NIGMS · UNIVERSITY OF PENNSYLVANIA · PI SCHMIDT, PAUL · 2012 to 2019
$3.3M
Behavioral Genomics of the White-throated SparrowR01GM084229 · NIGMS · INDIANA STATE UNIVERSITY · PI GONSER, RUSTY, TUTTLE, ELAINA M · 2009 to 2010
$630k
Genomics of natural populationsF32GM097837 · NIGMS · STANFORD UNIVERSITY · PI BERGLAND, ALAN OLAV · 2011 to 2013
$148k
NIGMS NIH HHS 1R01GM084229NIGMS NIH HHS F32 GM097837NIGMS NIH HHS R01 GM084229NIGMS NIH HHS R01 GM100366NIGMS NIH HHS R01GM100366
6 · The paper itself

Abstract

A major challenge in biology is to understand the genetic basis of adaptation. One compelling idea is that groups of tightly linked genes (i.e., "supergenes" [1, 2]) facilitate adaptation in suites of traits that determine fitness. Despite their likely importance, little is known about how alternate supergene alleles arise and become differentiated, nor their ultimate fate within species. Herein we address these questions by investigating the evolutionary history of a supergene in white-throated sparrows, Zonotrichia albicollis. This species comprises two morphs, tan and white, that differ in pigmentation and components of social behavior [3-5]. Morph is determined by alternative alleles at a balanced >100-Mb inversion-based supergene, providing a unique system for studying gene-behavior relationships. Using over two decades of field data, we document near-perfect disassortative mating among morphs, as well as the fitness consequences of rare assortative mating. We use de novo whole-genome sequencing coupled with population- and phylogenomic data to show that alternate supergene alleles are highly divergent at over 1,000 genes and that these alleles originated prior to the split of Z. albicollis from its sister species and may be polymorphic in Z. albicollis due to a past hybridization event. We provide evidence that the "white" allele may be degrading, similar to neo-Y/W sex chromosomes. We further show that the "tan" allele has surprisingly low levels of genetic diversity yet does not show several canonical signatures of recurrent positive selection. We discuss these results in the context of the origin, molecular evolution, and possible fate of this remarkable polymorphism.

Indexed as

Evolution, MolecularSex ChromosomesAnimalsFemaleGenetic FitnessGenomeMaleMating Preference, AnimalPolymorphism, GeneticSequence Analysis, DNASongbirdsSparrows

Identifiers

PMID26804558
PMCPMC4747794
OpenAlexW2259107463

What OpenQuestion holds

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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.