Figure 2From: Molecular evolution in Panagrolaimus nematodes: origins of parthenogenesis, hermaphroditism and the Antarctic species P. davidiLack of sperm and sperm nuclei from parthenogenetic Panagrolaimus strain JB115. DIC imaging was used to search for sperm and epifluorescence to search for compact sperm nuclei (none were observed). See Methods for details. An egg is indicated by "E" and the vulva is indicated by "V". The scalebar represents 40 μm.Back to article page