About the Authors

Katsueki Ogiwara

Affiliation Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, Japan

Chika Fujimori

Affiliation Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, Japan

Sanath Rajapakse

Affiliation Department of Molecular Biology and Biotechnology, Faculty of Science, University of Peradeniya, Peradeniya, Sri Lanka

Takayuki Takahashi

ttakaha@sci.hokudai.ac.jp

Affiliation Laboratory of Reproductive and Developmental Biology, Faculty of Science, Hokkaido University, Sapporo, Japan

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: KO TT. Performed the experiments: KO CF SR. Analyzed the data: KO TT. Contributed reagents/materials/analysis tools: KO CF SR. Wrote the paper: KO TT.