The organization of Physcomitrella patens RAD51 genes is unique among eukaryotic organisms. - Markmann-Mulisch,U..; Hadi,M..Z..; Koepchen,K..; Alonso,J..C..; Russo,V..E..A..; Schell,J..; Reiss,B.. (Proceedings of the National Academy of Sciences of the USA, 2002)