Figure 9  Abnormal Sex Chromatin in Cells Staged by Chromosome Pairing Status
(A) Spread of wild-type germ cell stained with DAPI, anti-SYCP3, and anti-HP1β showing chromosome morphology typical of diplonema and internalized XY body with HP1β accumulation.
(B) Spread of Dmrt7 mutant germ cell showing normal diplotene chromosome morphology and internalized XY body, but no HP1β accumulation in the XY body.
XY chromosome pairs are indicated by arrow.