Evidence map›Paper›PMID 30388206›Full record

ArticleGenome biology and evolution2019

Insights into the Evolution of Shells and Love Darts of Land Snails Revealed from Their Matrix Proteins.

Keisuke Shimizu, Kazuki Kimura, Yukinobu Isowa, Kenshiro Oshima, Makiko Ishikawa, Hiroyuki Kagi, Keiji Kito, Masahira Hattori, Satoshi Chiba, Kazuyoshi Endo

Open access · goldAbstract read
In one paragraph

Article in Genome biology and evolution, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.7field-weighted citation impact, top 10% 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

10 citing papers in PubMed, 26 citations in OpenAlex.

  1. Ancient DNA from shells reveals delayed genomic erosion and rapid immune adaptation in the critically endangered black abalone.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
  3. Article
  4. Article
  5. Article
  6. Optimized Sensory Units Integrated in the Chiton Shell.Marine biotechnology (New York, N.Y.) · 2022
    Article
  7. Article
  8. Article
  9. Article
  10. 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 at 5 institutions in 3 countries.

Keisuke ShimizuDepartment of Earth and Planetary Science, The University of Tokyo, Hongo, Japan.
Kazuki KimuraDepartment of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan.
Yukinobu IsowaOrganization for the Strategic Coordination of Research and Intellectual Properties, Meiji University, Kawasaki, Kanagawa, Japan.
Kenshiro OshimaCenter for Omics and Bioinformatics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan.
Makiko IshikawaDepartment of Earth and Planetary Science, The University of Tokyo, Hongo, Japan.
Hiroyuki KagiGeochemical Research Center, Graduate School of Science, The University of Tokyo, Hongo, Japan.
Keiji KitoDepartment of Life Sciences, School of Agriculture, Meiji University, Kawasaki, Kanagawa, Japan.
Masahira HattoriCenter for Omics and Bioinformatics, Department of Computational Biology and Medical Sciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba, Japan.
Satoshi ChibaDepartment of Environmental Life Sciences, Graduate School of Life Sciences, Tohoku University, Sendai, Miyagi, Japan.
Kazuyoshi EndoDepartment of Earth and Planetary Science, The University of Tokyo, Hongo, Japan.
The University of Tokyo · JPMeiji University · JPKyungpook National University · KRTohoku University · JPUniversity of Exeter · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Over the past decade, many skeletal matrix proteins that are possibly related to calcification have been reported in various calcifying animals. Molluscs are among the most diverse calcifying animals and some gastropods have adapted to terrestrial ecological niches. Although many shell matrix proteins (SMPs) have already been reported in molluscs, most reports have focused on marine molluscs, and the SMPs of terrestrial snails remain unclear. In addition, some terrestrial stylommatophoran snails have evolved an additional unique calcified character, called a "love dart," used for mating behavior. We identified 54 SMPs in the terrestrial snail Euhadra quaesita, and found that they contain specific domains that are widely conserved in molluscan SMPs. However, our results also suggest that some of them possibly have evolved independently by domain shuffling, domain recruitment, or gene co-option. We then identified four dart matrix proteins, and found that two of them are the same proteins as those identified as SMPs. Our results suggest that some dart matrix proteins possibly have evolved by independent gene co-option from SMPs during dart evolution events. These results provide a new perspective on the evolution of SMPs and "love darts" in land snails.

Indexed as

Animal ShellsBiological EvolutionAnimalsExtracellular Matrix ProteinsGenitaliaSnailsSpectrum Analysis, RamanTranscriptomeExtracellular Matrix Proteins

Identifiers

PMID30388206
PMCPMC6368272
OpenAlexW2899444654

What OpenQuestion holds

Textmetadata
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.