Evidence map›Paper›PMID 33622130›Full record

ArticleProceedings. Biological sciences2021

An early dog from southeast Alaska supports a coastal route for the first dog migration into the Americas.

Flavio Augusto da Silva Coelho, Stephanie Gill, Crystal M Tomlin, Timothy H Heaton, Charlotte Lindqvist

Open access · hybridAbstract read
In one paragraph

Article in Proceedings. Biological sciences, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
5.9field-weighted citation impact, top 3% 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

9 citing papers in PubMed, 34 citations in OpenAlex.

  1. Imputation of ancient canid genomes reveals inbreeding history over the past 10,000 years.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  6. Review
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  8. In situ evidence for Paleoindian hematite quarrying at the Powars II site (48PL330), Wyoming.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  9. Article
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

5 authors at 3 institutions in 2 countries.

Flavio Augusto da Silva CoelhoDepartment of Biological Sciences, University at Buffalo, Buffalo, NY 14260, USA.
Stephanie GillDepartment of Biological Sciences, University at Buffalo, Buffalo, NY 14260, USA.
Crystal M TomlinDepartment of Biological Sciences, University at Buffalo, Buffalo, NY 14260, USA.
Timothy H HeatonDepartment of Earth Sciences, University of South Dakota, Vermillion, SD 57069, USA.
Charlotte LindqvistDepartment of Biological Sciences, University at Buffalo, Buffalo, NY 14260, USA.
University at Buffalo, State University of New York · USNanyang Technological University · SGUniversity of South Dakota · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The oldest confirmed remains of domestic dogs in North America are from mid-continent archaeological sites dated approximately 9900 calibrated years before present (cal BP). Although this date suggests that dogs may not have arrived alongside the first Native Americans, the timing and routes for the entrance of New World dogs remain uncertain. Here, we present a complete mitochondrial genome of a dog from southeast Alaska, dated to 10 150 ± 260 cal BP. We compared this high-coverage genome with data from modern dog breeds, historical Arctic dogs and American precontact dogs (PCDs) from before European arrival. Our analyses demonstrate that the ancient dog belongs to the PCD lineage, which diverged from Siberian dogs around 16 700 years ago. This timing roughly coincides with the minimum suggested date for the opening of the North Pacific coastal (NPC) route along the Cordilleran Ice Sheet and genetic evidence for the initial peopling of the Americas. This ancient southeast Alaskan dog occupies an early branching position within the PCD clade, indicating it represents a close relative of the earliest PCDs that were brought alongside people migrating from eastern Beringia southward along the NPC to the rest of the Americas. The stable isotope

Indexed as

Genome, MitochondrialAlaskaAmericasAnimalsArctic RegionsDNA, MitochondrialDogsNorth AmericaPhylogenyUnited StatesDNA, MitochondrialCanis lupus familiarisNorth Pacific Coastpalaeodietpalaeogeneticsprecontact dogssoutheast Alaska

Identifiers

PMID33622130
PMCPMC7934960
OpenAlexW3132236176

What OpenQuestion holds

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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.