(B) Boxplots displaying signal intensities of DAXX or ATRX at pat- and mat-PCH in wild-type (n=5) and Hp1βm-z+ (n=10) mouse zygotes at PN5. In boxplots, the enter lines show the medians; box limits indicate the 25th and 75th percentiles as determined by R software; whiskers extend 1.5 times the interquartile range from the 25th and 75th percentiles. Datapoints are indicated by circles. Experiments were replicated 2 times. *P<0.05, **P<0.01, t-test. 