How do chromosomes divide?
In a body, every single cell has the same number of chromosomes. This is because when a cell divides, the replicated chromatids are equally segregated into daughter cells. But, the first meiotic division is a clear exception. This division segregates maternal and paternal chromosomes for production of eggs and sperms, which are the origin of a new life. What is the story behind this division?
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News
3 February, 2026
A new member joined
Shengqun Hou (Research Associate) joined our lab in February.
23 January, 2026
"Dynamic Reproductive Lifespan" Next Generation Scientist Meeting
Tomoya Kitajima, So Shimamoto, Manami Koshiguchi, Mihoko Fushii, and Remi Kanemu attended the Next Generation Scientist Meeting of Grant-in-Aid for Transformative Research Areas（A) "Dynamic Reproductive Lifespan" held in Kumamoto on 13 January, 2026 and presented their researches. So and Remi won the Best Poster Awards.
23 January, 2026
SOKENDAI Life Science Retreat 2025
Tomoya Kitajima was invited to present our research at SOKENDAI Life Science Retreat 2025 held in Minamitsuru from 8 to 9 January, 2026.
9 December, 2025
MBSJ2025
Tomoya Kitajima, So Shimamoto and MeiAkiko Mukose attended the 48th Annual Meeting of the Molecular Biology Society of Japan (MBSJ 2025) held in Yokohama from 3 to 5 December, 2025 and gave research presentations.
1 December, 2025
Celebration Party
We held a celebration party and a table tennis tournament with our lab members and their families to welcome Visiting Scientist Dr. Guo and Student Trainee Mr. Wei, celebrate the publication of our papers, and congratulate Team Director Kitajima on receiving the Osaka Science Prize.