HOM/Hox-type homeoboxes from Stylaria lacustris (Annelida: Oligochaeta).

The polymerase chain reaction was used to survey the oligochaete worm Stylaria lacustris for HOM/Hox type homeobox genes. Twelve fragments were identified and in most cases were assignable to cognate groups on the basis of amino acid similarity. Stylaria appears to have three labial-type genes, a HOX B3 cognate, several genes similar to Antennapedia, and cognates of Abdominal-B and CHox7.