About the Authors

Koyuki Kondo

Affiliation Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113–0033, Japan

Takeo Kubo

Affiliation Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113–0033, Japan

Takekazu Kunieda

kunieda@bs.s.u-tokyo.ac.jp

Affiliation Department of Biological Sciences, Graduate School of Science, The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113–0033, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KK T. Kubo T. Kunieda. Performed the experiments: KK. Analyzed the data: KK T. Kunieda. Contributed reagents/materials/analysis tools: KK. Wrote the paper: KK T. Kunieda.