The Caenorhabditis globin gene family reveals extensive nematode-specific radiation and diversification.
Hoogewijs D, De Henau S, Dewilde S, Moens L, Couvreur M, Borgonie G, Vinogradov SN, Roy SW, Vanfleteren JR. BMC Evol Biol. 2008 Oct 9; 8:279. Epub 2008 Oct 9.