however , since spermiogenesis in trout occurs over several weeks , the slow in vitro nucleosome disassembly process by salmine is sufficient to allow complete displacement , thus supporting the hypothesis that a protamine-mediated displacement of the histones from dna in vivo may take place in the salmonid fishes by a mechanism similar to that in the rooster , squid , and cuttlefish .
C0036107
salmine
C0033603
protamine