The period of high
fog-3 expression coincides with spermatogenesis. Northern blot of N2 total RNA, isolated from different developmental stages. L1, first larval stage; yA, young adult; A, adult. The blot was probed with an anti-
fog-3 probe (Chen et al., 2000) and then with a probe to the 26s ribosomal RNA, to test for loading errors.