| molecular evidence that heligmosomoides polygyrus from laboratory mice and wood mice are separate species. | the gastro-intestinal (gi) nematode heligmosomoides polygyrus is an important experimental model in laboratory mice and a well-studied parasite of wood mice in the field. despite an extensive literature, the taxonomy of this parasite in different hosts is confused, and it is unclear whether laboratory and field systems represent the same or different operational taxonomic units (otus). molecular analyses reveal high sequence divergence between h. p. bakeri (laboratory) and h. p. polygyrus (field ... | 2006 | 16536883 |