The expression of histone H1. X::GFP in C The expression of histone H1.X::GFP in C. elegans body muscle cells (A,C) and in the vulva muscle cells (E). The expression of histone H1.X::GFP in C. elegans body muscle cells (A,C) and in the vulva muscle cells (E). H1.X::GFP is prominently localized in the cytoplasm but also enriched in the nuclei. (B,D,F) represent the corresponding Nomarski micrographs. The arrows points to individual body-wall muscle cells and the nuclei therein and to the vulva opening. Bars, 20 μm. Monika A. Jedrusik et al. J Cell Sci 2002;115:2881-2891 © The Company of Biologists Limited 2002