Two ancient classes of MIKC-type MADS-box genes are present in the moss Physcomitrella patens. - Henschel, ,K.,.; Kofuji, ,R.,.; Hasebe, ,M.,.; Saedler, ,H.,.; Münster, ,T.,.; and Theißen, ,G.. (Mol. Biol. Evol., 2002)