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Supplemental Information

Video image of Figure 4 (Low power view)

DOI: 10.7287/peerj.preprints.3297v1/supp-2

Video image of Figure 4 (high power view)

DOI: 10.7287/peerj.preprints.3297v1/supp-3

Additional Information

Competing Interests

The author declares that they have no competing interests.

Author Contributions

Kazuo Katoh conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables.

Data Deposition

The following information was supplied regarding data availability:

The raw data/code is included in the manuscript (please state where).


The work reported here was supported by Grants-in-Aid for Promotional Projects for Advanced Education and Research, National University Cooperation Tsukuba University of Technology. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.

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