Recent studies have introduced Oscheius sp. CEW1 as a third nematode species accessible to genetic analysis, joining the better known Caenorhabditis elegans and Pristionchus pacificus. A group of vulva-defective mutants in Oscheius has been identified, with defects not seen in C. elegans.
Sommer, R. J. (2000, November 30). Comparative genetics: A third model nematode species. Current Biology. Elsevier Ltd. https://doi.org/10.1016/S0960-9822(00)00815-0