Evidence map›Paper›PMID 26374236›Full record

ArticleHeredity2016

Is there more than one way to skin a newt? Convergent toxin resistance in snakes is not due to a common genetic mechanism.

C R Feldman, A M Durso, C T Hanifin, M E Pfrender, P K Ducey, A N Stokes, K E Barnett, E D Brodie, E D Brodie

Erratum issuedOpen access · bronzeAbstract read
In one paragraph

Article in Heredity, 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 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
4.1field-weighted citation impact, top 7% 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

14 citing papers in PubMed, 33 citations in OpenAlex.

  1. Article
  2. Article
  3. Identification of the NAJournal of chemical ecology · 2023
    Article
  4. Article
  5. Convergent evolution of toxin resistance in animals.Biological reviews of the Cambridge Philosophical Society · 2022
    Review
  6. Article
  7. Article
  8. Local ancestry analysis reveals genomic convergence in extremophile fishes.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2019
    Article
  9. Article
  10. Article
  11. Review
  12. Article
  13. Review
  14. Article
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

9 authors at 8 institutions in 1 country.

C R FeldmanDepartment of Biology, University of Nevada Reno, Reno, NV, USA.
A M DursoDepartment of Biology, Utah State University, Logan, UT, USA.
C T HanifinDepartment of Biology, Utah State University, Logan, UT, USA.
M E PfrenderDepartment of Biological Sciences, University of Notre Dame, Notre Dame, IN, USA.
P K DuceyDepartment of Biological Sciences, State University of New York-Cortland, Cortland, NY, USA.
A N StokesDepartment of Biology, California State University Bakersfield, Bakersfield, CA, USA.
K E BarnettNew York State Department of Environmental Conservation, Albany, NY, USA.
E D BrodieMountain Lake Biological Station and Department of Biology, University of Virginia, Charlottesville, VA, USA.
E D BrodieDepartment of Biology, Utah State University, Logan, UT, USA.
University of Virginia · USCalifornia State University, Bakersfield · USNew York State Department of Environmental Conservation · USSUNY Cortland · USUintah Basin Applied Technology College · USUniversity of Nevada, Reno · USUniversity of Notre Dame · USUtah State University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Convergent evolution of tetrodotoxin (TTX) resistance, at both the phenotypic and genetic levels, characterizes coevolutionary arms races between amphibians and their snake predators around the world, and reveals remarkable predictability in the process of adaptation. Here we examine the repeatability of the evolution of TTX resistance in an undescribed predator-prey relationship between TTX-bearing Eastern Newts (Notophthalmus viridescens) and Eastern Hog-nosed Snakes (Heterodon platirhinos). We found that that local newts contain levels of TTX dangerous enough to dissuade most predators, and that Eastern Hog-nosed Snakes within newt range are highly resistant to TTX. In fact, these populations of Eastern Hog-nosed Snakes are so resistant to TTX that the potential for current reciprocal selection might be limited. Unlike all other cases of TTX resistance in vertebrates, H. platirhinos lacks the adaptive amino acid substitutions in the skeletal muscle sodium channel that reduce TTX binding, suggesting that physiological resistance in Eastern Hog-nosed Snakes is conferred by an alternate genetic mechanism. Thus, phenotypic convergence in this case is not due to parallel molecular evolution, indicating that there may be more than one way for this adaptation to arise, even among closely related species.

Indexed as

Biological EvolutionSalamandridaeTetrodotoxinAdaptation, BiologicalAmino Acid SequenceAmino Acid SubstitutionAnimalsColubridaeGenotypeMolecular Sequence DataNAV1.4 Voltage-Gated Sodium ChannelNew YorkPhenotypePredatory BehaviorVirginiaNAV1.4 Voltage-Gated Sodium ChannelTetrodotoxin

Identifiers

PMID26374236
PMCPMC4675877
OpenAlexW2406452976

What OpenQuestion holds

Textmetadata
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.