FIG. 2. .

Caput-specific regulation of Rhox gene expression by RHOX5 in the adult epididymis. Epididymides from six adult animals (either wild-type [WT] or Rhox5-null) were dissected and analyzed as in Figure 1. However, for comparative purposes, rather than fold above background signal, expression data are shown as fold relative to the normalized WT caput qPCR signal, which was arbitrarily given a value of 100. *Segments exhibiting significantly different relative expression between WT and Rhox5-null animals (P < 0.001).