Fig. 1: The expression and oocyte-specific deletion of CK2β.

a Immunoblotting showing the expression pattern of CK2β in mouse oocytes at different developmental stages. A total 150 oocytes were collected after being cultured for 0, 4, 8, and 12 h, corresponding to GV, GVBD, MI, and MII stages, respectively. β-actin was detected as an internal control. b Immunohistochemistry analysis of the expression pattern of CK2β in primordial, primary, secondary, and tertiary follicles at PD21. c Immunohistochemistry detection of CK2β loss in oocytes of Ck2βfl/fl;GCre+ mice. Scale bar: 50 μm