The GSH content and mtDNA copy number per oocyte.

<p>A, the GSH content, and B, the mtDNA copy number per matured oocyte after Dnmt1 knockdown. After siRNA injection into GV stage oocytes, the GSH content and mtDNA copy number per oocyte were significantly reduced in MII stage oocytes. The number of oocytes detected was on the top of the column chart, and ^※Values with a star marker in the same column chart differed significantly (P<0.05).