Evidence map›Paper›PMID 33542454›Full record

ArticleScientific reports2021

Mating system evolution and genetic structure of diploid sexual populations of Cyrtomium falcatum in Japan.

Ryosuke Imai, Yoshiaki Tsuda, Atsushi Ebihara, Sadamu Matsumoto, Ayumi Tezuka, Atsushi J Nagano, Ryo Ootsuki, Yasuyuki Watano

Erratum issuedAbstract read
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In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing 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

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

8 authors.

Ryosuke Imai *Sugadaira Research Station, Mountain Science Center, University of Tsukuba, Sugadaira, Ueda, Nagano, 386-2204, Japan. h192955@lab.u-ryukyu.ac.jp.
Yoshiaki Tsuda *Sugadaira Research Station, Mountain Science Center, University of Tsukuba, Sugadaira, Ueda, Nagano, 386-2204, Japan.
Atsushi EbiharaDepartment of Botany, National Museum of Nature and Science, Tsukuba, Ibaraki, 305-0005, Japan.
Sadamu MatsumotoDepartment of Botany, National Museum of Nature and Science, Tsukuba, Ibaraki, 305-0005, Japan.
Ayumi TezukaFaculty of Agriculture, Ryukoku University, Otsu, Shiga, 520-2194, Japan.
Atsushi J NaganoFaculty of Agriculture, Ryukoku University, Otsu, Shiga, 520-2194, Japan.
Ryo OotsukiDepartment of Natural Sciences, Faculty of Arts and Sciences, Komazawa University, 1-23-1 Komazawa, Setagaya-ku, Tokyo, 154-8525, Japan.
Yasuyuki WatanoDepartment of Biology, Graduate School of Science, Chiba University, Inage, Chiba, Chiba, 263-8522, Japan. watano@faculty.chiba-u.jp.

Funding

Ministry of Education, Science and Culture of Japan 15K07180the Environment Research and Technology Development Fund from the Japanese Ministry of the Environment 4-1605
6 · The paper itself

Abstract

Evolution of mating systems has become one of the most important research areas in evolutionary biology. Cyrtomium falcatum is a homosporous fern species native to eastern Asia. Two subspecies belonging to a sexual diploid race of C. falcatum are recognized: subsp. littorale and subsp. australe. Subspecies littorale shows intermediate selfing rates, while subsp. australe is an obligate outcrosser. We aimed to evaluate the process of mating system evolution and divergence for the two subspecies using restriction site associated DNA sequencing (RAD-seq). The results showed that subsp. littorale had lower genetic diversity and stronger genetic drift than subsp. australe. Fluctuations in the effective population size over time were evaluated by extended Bayesian skyline plot and Stairway plot analyses, both of which revealed a severe population bottleneck about 20,000 years ago in subsp. littorale. This bottleneck and the subsequent range expansion after the LGM appear to have played an important role in the divergence of the two subspecies and the evolution of selfing in subsp. littorale. These results shed new light on the relationship between mating system evolution and past demographic change in fern species.

Indexed as

Biological EvolutionCrosses, GeneticPhylogenyBayes TheoremDiploidyFernsGenetic DriftGenetic VariationJapanPopulation DensityPrincipal Component AnalysisReproduction

Identifiers

PMID33542454
PMCPMC7862634

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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.