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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animation of chromosome segregation


News

24 July, 2025

Joint Meeting of JSCB 77th and JSDB 58th

Tomoya Kitajima and Shuhei Yoshida attended Joint Meeting of JSCB 77th and JSDB 58th held in Nagoya from 16 to 18 July, 2025 and gave oral presentations.

24 July, 2025

Summer School on Genome Stability 2025 Montpellier

Miho Sakuma attended Summer School on Genome Stability 2025 held in Montpellier, France from 15 to 19 July, 2025 and gave an oral presentation.

24 July, 2025

Early-Career Scientists’ Meeting with International Advisors

Tomoya Kitajima, So Shimamoto, Manami Koshiguchi, Remi Kanemura and Miho Sakuma attended Early-Career Scientists’ Meeting with International Advisors of Grant-in-Aid for Transformative Research Areas(A) Dynamic Reproductive Lifespan held in Tokyo on 12 July, 2025 and presented their researches.

24 July, 2025

The 53rd Naito Conference

Tomoya Kitajima and So Shimamoto attended the 53rd Naito Conference "Germ Cell Biology: Uncovering Mysteries of Continuity and Discontinuity" held in Sapporo from 8 to 11 July, 2025 and presented their researches.

10 July, 2025

EMBO Workshop

Tomoya Kitajima was invited to present our research at EMBO Workshop Meiosis: Exploring Diversity to Discover the Fundamentals held in Engelberg, Switzerland from 22 to 26 June, 2025.

23 June, 2025

Annual Meeting of the Japanese Society for Epigenetics

Tomoya Kitajima was invited to present our research at the 18th Annual Meeting of the Japanese Society for Epigenetics held in Fukui from 19 to 20 June, 2025.

17 June, 2025

NTU-KU-UT Joint International Mini Symposium 2025

Miho Sakuma attended the NTU-KU-UT Joint International Mini Symposium 2025 held in Taipei, Taiwan on 14 June, 2025 and gave an oral presentation.


Upcoming Events

18 August - 22 August, 2025

BDR Summer Internship Program for Undergraduate Students

28 August - 29 August, 2025

The 43rd Congress of Japan Society of Fertilization and Implantation

15 September - 17 September, 2025

The 118th SRD Meeting

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