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Supplemental Information

Figure S1

A coronal section of the OB of bowhead whale 09B11 (section 32). Glomeruli are labeled with anti-OMP antibody, and are indicated with arrows. Scale bar, 1000um.

DOI: 10.7287/peerj.preprints.740v1/supp-1

Figure S2

A coronal section of the OB of bowhead whale 09B11 (section 143). Glomeruli are labeled with anti-OMP antibody, and are indicated with arrows. Scale bar, 1000um.

DOI: 10.7287/peerj.preprints.740v1/supp-2

Figure S3

A coronal section of the OB of bowhead whale 09B11 (section 195). Glomeruli are labeled with anti-OMP antibody, and are indicated with arrows. Scale bar, 1000um.

DOI: 10.7287/peerj.preprints.740v1/supp-3

Figure S4

A coronal section of the OB of bowhead whale 09B11 (section 391). Glomeruli are labeled with anti-OMP antibody, and are indicated with arrows. Scale bar, 1000um.

DOI: 10.7287/peerj.preprints.740v1/supp-4

Figure S5

A coronal section of the OB of bowhead whale 09B11 (section 518). Glomeruli are labeled with anti-OMP antibody, and are indicated with arrows. Scale bar, 1000um.

DOI: 10.7287/peerj.preprints.740v1/supp-5

Figure S6

A horizontal section of the OB of bowhead whale 09B14 (section 134). Glomeruli are labeled with anti-OMP antibody. Scale bar, 1000um. Left, anterior; right, posterior.

DOI: 10.7287/peerj.preprints.740v1/supp-6

Table S1

Number of glomeruli on approx. every 10th slide. Nos. of glomeruli with slide nos. in parentheses are estimated by taking an average between the glomeruli-counted sections in front and in the rear.

DOI: 10.7287/peerj.preprints.740v1/supp-7

Additional Information

Competing Interests

J. G. M. Thewissen is an Academic Editor for PeerJ.

Author Contributions

Takushi Kishida conceived and designed the experiments, performed the experiments, analyzed the data, contributed reagents/materials/analysis tools, wrote the paper, prepared figures and/or tables, reviewed drafts of the paper.

J. G. M. Thewissen performed the experiments, contributed reagents/materials/analysis tools, wrote the paper, reviewed drafts of the paper.

Sharon Usip performed the experiments, prepared figures and/or tables, reviewed drafts of the paper.

John C George performed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Robert S Suydam performed the experiments, contributed reagents/materials/analysis tools, reviewed drafts of the paper.

Animal Ethics

The following information was supplied relating to ethical approvals (i.e., approving body and any reference numbers):

Tissues of bowhead whales were sampled under NOAA/NMFS permit 814-1899.

Funding

This study was financially supported by MEXT KAKENHI (grant no. 24770075) to TK. Support for JGMT was provided by the National Science Foundation (EAR) and the North Slope Borough, Barrow, Alaska. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.


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