Evidence map›Paper›PMID 33468678›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

The Tiger Rattlesnake genome reveals a complex genotype underlying a simple venom phenotype.

Mark J Margres, Rhett M Rautsaw, Jason L Strickland, Andrew J Mason, Tristan D Schramer, Erich P Hofmann, Erin Stiers, Schyler A Ellsworth, Gunnar S Nystrom, Michael P Hogan and 5 more

Open access · greenAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 52 papers.

0numbers the graph read from it
0cells of the map it votes in
52citing papers in PubMed
10.7field-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

52 citing papers in PubMed, 78 citations in OpenAlex.

  1. Article
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  3. Evolution of genome-wide barriers to gene flow during complex speciation in rattlesnakes.Proceedings of the National Academy of Sciences of the United States of America · 2026
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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

15 authors at 3 institutions in 1 country.

Mark J MargresDepartment of Biological Sciences, Clemson University, Clemson, SC 29634; margres@usf.edu viper@clemson.edu.ORCID http://orcid.org/0000-0002-6153-6701
Rhett M RautsawDepartment of Biological Sciences, Clemson University, Clemson, SC 29634.ORCID http://orcid.org/0000-0002-8229-5951
Jason L StricklandDepartment of Biological Sciences, Clemson University, Clemson, SC 29634.ORCID http://orcid.org/0000-0002-1927-7259
Andrew J MasonDepartment of Biological Sciences, Clemson University, Clemson, SC 29634.
Tristan D SchramerDepartment of Biological Sciences, Clemson University, Clemson, SC 29634.ORCID http://orcid.org/0000-0002-4553-8002
Erich P HofmannDepartment of Biological Sciences, Clemson University, Clemson, SC 29634.ORCID http://orcid.org/0000-0001-6209-6800
Erin StiersDepartment of Biological Sciences, Clemson University, Clemson, SC 29634.
Schyler A EllsworthDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.ORCID http://orcid.org/0000-0002-8321-1158
Gunnar S NystromDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.
Michael P HoganDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.ORCID http://orcid.org/0000-0003-3702-5079
Daniel A BartlettDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.ORCID http://orcid.org/0000-0003-3197-2438
Timothy J ColstonDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.ORCID http://orcid.org/0000-0002-1127-1207
David M GilbertDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.ORCID http://orcid.org/0000-0001-8087-9737
Darin R RokytaDepartment of Biological Science, Florida State University, Tallahassee, FL 32306.ORCID http://orcid.org/0000-0002-0356-2178
Christopher L ParkinsonDepartment of Biological Sciences, Clemson University, Clemson, SC 29634; margres@usf.edu viper@clemson.edu.
Clemson University · USFlorida State University · USHarvard University · US

Funding

The role of acetate fermentation in Entamoeba histolytica growth and infectionP20GM109094 · NIGMS · CLEMSON UNIVERSITY · PI MORRIS, MEREDITH T · 2016 to 2020
$10.4M
Genome Plasticity during ES Cell Differentiation to Neural LineagesR01GM083337 · NIGMS · SAN DIEGO BIOMEDICAL RESEARCH INSTITUTE · PI David M Gilbert · 2007 to 2026
$6.1M
Comprehensive mapping of pre-replication complex protein binding sites in single human cellsR21HG010403 · NHGRI · FLORIDA STATE UNIVERSITY · PI GILBERT, DAVID M · 2018 to 2019
$411k
NHGRI NIH HHS R21 HG010403NIGMS NIH HHS P20 GM109094NIGMS NIH HHS R01 GM083337
6 · The paper itself

Abstract

Variation in gene regulation is ubiquitous, yet identifying the mechanisms producing such variation, especially for complex traits, is challenging. Snake venoms provide a model system for studying the phenotypic impacts of regulatory variation in complex traits because of their genetic tractability. Here, we sequence the genome of the Tiger Rattlesnake, which possesses the simplest and most toxic venom of any rattlesnake species, to determine whether the simple venom phenotype is the result of a simple genotype through gene loss or a complex genotype mediated through regulatory mechanisms. We generate the most contiguous snake-genome assembly to date and use this genome to show that gene loss, chromatin accessibility, and methylation levels all contribute to the production of the simplest, most toxic rattlesnake venom. We provide the most complete characterization of the venom gene-regulatory network to date and identify key mechanisms mediating phenotypic variation across a polygenic regulatory network.

Indexed as

Molecular Sequence AnnotationAnimalsCrotalid VenomsCrotalusGene Expression RegulationGenomeGenotypeTranscriptomeWhole Genome SequencingCrotalid Venomschromatingene regulationgenotype–phenotypemethylation

Identifiers

PMID33468678
PMCPMC7848695
OpenAlexW3121709350

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.