Nuclear lamina behavior during <i>solofuso</i> mutant meiotic and postmeiotic stages.

<p>DNA in red (DAPI staining), nuclear lamina in green (anti Lam-Dm0). <i>solofuso</i> mutant males show chromatin bridges at (a) Anaphase I (arrowheads) and (b) Telophase I (arrowheads). NL shows an irregular signal at nuclear rim and a punctuated pattern over the chromatin bridges (a and b, arrowheads). Note that NL encircles the micronucleus (b, arrows). (c) Spermatids at onion stage evidencing a micronucleus surrounded by NL. (d) Onion stages showing a Nebenkern (Nb) associated to a nucleus (N) and two Nebenkern not associated with nuclei (d, DNA, arrows). The NL signal is detected around the nucleus associated with Nebenkern while no structured NL is present close to the Nebenkern lacking nuclei (d, LAMINA). Scale bar 20 μm.