Curr Biol. 2005 Jan 11;15(1):R12-3 doi:10.1016/j.cub.2004.12.010

Edvardsen RB, Seo HC, Jensen MF, Mialon A, Mikhaleva J, Bjordal M, Cartry J, Reinhardt R, Weissenbach J, Wincker P, Chourrout D.

Remodelling of the homeobox gene complement in the tunicate Oikopleura dioica.

O. dioica has 83 homeobox genes. Lost groups of genes do not fully overlap between O. dioica and C. intestinalis, suggesting a larger common core in the ancestral tunicate.