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

14 November, 2018

BDR Symposium 2019 

BDR Symposium 2019 "Control and Design of Biosystems" will be held from March 25 to 27, 2019. Registration is now open. Abstract submission deadline is Friday, December 14, 2018.
https://www2.bdr.riken.jp/sympo/2019/



9 October, 2018

Grant-in-Aid for Scientific Research on Innovative Areas 

Kitajima lab takes part of Grant-in-Aid for Scientific Research on Innovative Areas "Ensuring integrity in gametogenesis"



25 September, 2018

Yi Ding awarded PhD at Kyoto Univ

Yi Ding received his PhD degree in Life Sciences from the Graduate School of Biostudies, Kyoto University on 25 Sept., 2018. Congratulations!


20 September, 2018

SRD Outstanding Presentation Award 

Hirohisa Kyogoku attended the 111th SRD Meeting(Ueda, 13 - 15 Sept., 2018) and the 56th Annual Meeting of The Biophysical Society of Japan (Okayama, 15-17 Sept., 2018) and gave oral presentations. He won the SRD Outstanding Presentation Award!!


20 September, 2018

Summer Internship Program 

Summer internship program for undergraduate students was held from 20-24 August. Kitajima Lab welcomed 3 students. They had the opportunity to carry out experiments using live-imaging of mouse oocytes and present their results to the other internship participants.


29 August, 2018

We published a new paper on the oocyte nucleolus (NPB)  

We found that the number and size of the NPB was scaled by the volume of NPB materials.
Kyogoku H., Wakayama T., Kitajima T.S. and Miyano T.
Single nucleolus precursor body formation in the pronucleus of mouse zygotes and SCNT embryos. PLOS ONE 13(8): e0202663 (2018). doi: 10.1371/journal.pone.0202663.