SAMD00002800 10090 Mus musculus Fully grown germinal vesicle (GV) stage oocytes were collected from ovarian follicles of 7- to 9-week-old female C57BL/6N mice (Clea Japan, Tokyo, Japan) by 48-hour after the injection of pregnant mare serum gonadotropin. sex Female age 7 to 9 weeks strain C57BL/6N SAMD00002797 10090 Mus musculus Fully grown germinal vesicle (GV) stage oocytes were collected from ovarian follicles of over 8-week-old [Dnmt1　2lox/2lox, Zp3-Cre] female mice (Kyushu University) sex Female age 8- weeks strain hybrid genetic background (129SvJae×C57BL/6N) SAMD00002799 10090 Mus musculus Fully grown germinal vesicle (GV) stage oocytes were collected from ovarian follicles of over 8-week-old [Dnmt3a　2lox/2lox, Zp3-Cre] female mice (Kyushu University) sex Female age 8- weeks strain hybrid genetic background (129SvJae×C57BL/6N) SAMD00002798 10090 Mus musculus Fully grown germinal vesicle (GV) stage oocytes were collected from ovarian follicles of over 8-week-old [Dnmt3b　2lox/2lox, Zp3-Cre] female mice (Kyushu University) sex Female age 8- weeks strain hybrid genetic background (129SvJae×C57BL/6N) SAMD00002796 10090 Mus musculus Fully grown germinal vesicle (GV) stage oocytes were collected from ovarian follicles of over 8-week-old Dnmt3L-/- female mice (Kyushu University) sex Female age 8- weeks strain hybrid genetic background (129SvJae×C57BL/6N) SAMD00002795 10090 Mus musculus Non-growing (NG) oocytes at the diplotene stage of the first meiosis from the ovaries of 1-day-old new born female C57BL/6N mice (Clea Japan, Tokyo, Japan) sex Female age 1 day strain C57BL/6N