Evidence map›Paper›PMID 34386259›Full record

ArticleRoyal Society open science2021

Ancient DNA reveals multiple origins and migration waves of extinct Japanese brown bear lineages.

Takahiro Segawa, Takahiro Yonezawa, Hiroshi Mori, Ayumi Akiyoshi, Morten E Allentoft, Ayako Kohno, Fuyuki Tokanai, Eske Willerslev, Naoki Kohno, Hidenori Nishihara

Abstract read
In one paragraph

Article in Royal Society open science, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.

0numbers the graph read from it
0cells of the map it votes in
8citing papers in PubMed
–field-weighted citation impact
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

8 citing papers in PubMed.

  1. Article
  2. The Japanese Archipelago sheltered cave lions, not tigers, during the Late Pleistocene.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  3. Ancient DNA fromiScience · 2025
    Article
  4. Article
  5. Article
  6. Article
  7. Article
  8. 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

10 authors.

Takahiro SegawaCenter for Life Science Research, University of Yamanashi, 1110 Shimokato, Chuo, Yamanashi, Japan.ORCID 0000-0002-3111-708X
Takahiro YonezawaTokyo University of Agriculture, 1737 Funako, Atsugi City, Kanagawa, Japan.
Hiroshi MoriNational Institute of Genetics, Yata 1111, Mishima City, Shizuoka, Japan.
Ayumi AkiyoshiNational Institute of Polar Research, Midori-cho 10-3, Tachikawa City, Tokyo, Japan.
Morten E AllentoftTrace and Environmental DNA (TrEnD) Laboratory, School of Molecular and Life Sciences, Curtin University, Bentley, Western Australia 6102, Australia.
Ayako KohnoDepartment of Geology and Paleontology, National Museum of Nature and Science, Tokyo, Amakubo, Tsukuba, Ibaraki, Japan.
Fuyuki TokanaiFaculty of Science, Yamagata University, Jonan 4-3-16, Yonezawa City, Yamagata 990-3101, Japan.
Eske WillerslevLundbeck Foundation GeoGenetics Centre, Globe Institute, University of Copenhagen, Copenhagen, Denmark.
Naoki KohnoDepartment of Geology and Paleontology, National Museum of Nature and Science, Tokyo, Amakubo, Tsukuba, Ibaraki, Japan.ORCID 0000-0001-5329-4063
Hidenori NishiharaSchool of Life Science and Technology, Tokyo Institute of Technology, 4259-S2-17 Nagatsuta-cho, Midori-ku, Yokohama 226-8501, Japan.ORCID 0000-0002-5843-9994

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Little is known about how mammalian biogeography on islands was affected by sea-level fluctuations. In the Japanese Archipelago, brown bears (

Indexed as

ancient DNAbrown bearmitochondrial genomesPleistocene megafauna

Identifiers

PMID34386259
PMCPMC8334828

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.