Dr. Hino visited our laboratory for collaborative experiments with Ogonuki-san. He observed the chromosomes of the oocytes injected with spermatocytes and transfered his techniques to Ogonuki-san.

The 10th Wakate BRC Conference (WBC) was held at Moriwaki Hall (RIKEN Tsukuba) and Zoom (Hybrid) on Oct.3. Five members of our lab gave poster presentation as follows. Joint projects with mutual-benefit association (a Yakult break, a social gathering) were also prepared to make this a lively meeting. *Poster Presentation* Naomi WATANABE: Preservation of wild-derived mouse strains by nuclear transfer using peripheral blood cells Takaki TATEBE: Analysis of protein degradation systems in SCNT embryos Michiko HIROSE: Generation of knockout hamsters as a new experimental model strategy. Shogo MATOBA: The protection mechanism of embryogenesis by the placenta and the consequences of its disruption. Dinh Quoc PHAM: Establishment and characterization of transgenic […]

Dr. Rashmi Parihar from the Indian Institute of Technology came to BioResource Research Center (BRC) for a 3-week training course. She will set up the assisted reproductive technique system in her mouse facility. During the first week, Mochida-san and Hasegawa-san trained her for the basics of IVF and embryo/sperm freezing.

Tsukuba Conference 2023 was held at Tsukuba International Congress Center (Ibaraki Pref.) and Web Hybrid from Sep.26 to 28. Mr. Takaki TATEBE of our lab gave a poster presentation. Main Theme: Design the Future -Curiosity-driven Quests for Global Solutions- Session C-07: Frontiers of Medical & Life Sciences            -International Student Presentations of Medical and Life Sciences- *Poster Session* Title: Analysis of protein degradation systems in SCNT embryos

The 116th The Society for Reproduction and Development (JSD) Meeting was held at Kobe University (Hyogo Pref.) from Sep.24 to 27. Three members of our lab gave oral presentations as follows. In addition, Ms. Narumi OGONUKI served as an organizer of the Gender Equality Seminar. *Oral Presentation* Narumi OGONUKI: Birth of mice from meiotically arrested spermatocytes using microinjection Shogo MATOBA: Improvement of somatic cell nuclear transfer by G9a inhibitors in mice and marmosets. Naomi WATANABE: An establishment of nuclear transfer embryonic stem cells from wild-derived mouse strains using inter-species somatic cell nuclear transfer

The 5th World Congress of Reproductive Biology (WCRB) was held at the Beijing Conference Center (China). from Sep.13 to 15, and Dr. Kimiko INOUE of our lab was invited to recorded presentation. *Invited lecture* Title: Elucidation of imprinted genes responsible for hyperplasia in somatic cell nuclear transferred placentas

The 95th Annual Meeting of the Genetics Society of Japan was held at the Kumamoto Prefectural Community Exchange Center “Parea” from Sep.6 to 8, and Dr. Kimiko INOUE of our lab gave a presentation in the workshop. [Workshop 11] Theme: “Theme: Impacts of the structural and functional differences between parental genomes on mouse embryonic development” Title: Elucidation of imprinted genes responsible for hyperplasia in somatic cell nuclear transferred placentas

RIKEN Summer School 2023 was held at RIKEN Wako on September 6-7, and four members of our lab gave poster presentations. Ms. WATANABE received the Poster Award Biology Prize. *Poster Presentation* Naomi WATANABE：Preservation of wild-derived mouse strains by nuclear transfer using peripheral blood cells Takaki TATEBE：Analysis of protein degradation systems in SCNT embryos PHAM Quoc Dinh：Establishment and characterization for transgenic cloned mice harboring human erythropoietin gene produced by genome editing and nuclear transfer Syun TOKITA：Differences in the quality of ROSI-derived embryos among experimenters who generated them

Dr. Shogo Matoba was invited to give a lecture at the 166th Annual Meeting of the Japanese Society of Veterinary Science held online from Sep.5 to 8. *Invited lecture* Subcommittee for Veterinary Anatomy Satellite Forum “Studies of Totipotency and its Applications” Title: Totipotency in Eggs and its Application to Somatic Cell Nuclear Transfer Technology