Network analysis of retained and lost genes in turnip. 155 A. thaliana peroxidase-related genes were selected. a) Five retained genes and four lost genes were identified in turnip, five of which were class III peroxidases. b) Summary of the functional protein interaction network found by STRING using five retained genes as input. c) Phenylpropanoid biosynthesis pathway in A. thaliana, including four retained genes and two lost genes. A. thaliana genes that encode enzymes are indicated by light green colored boxes; red resp. dark green boxes indicate genes with less resp. more copies in rapid cycling than in Chiifu and turnip.