Fig. 2

Functional annotation and classification of unigenes. a The number of annotated unigene in four public database including NR, Swiss-Port, KOG and KEGG. b Species distribution for top BLAST hits for each unigene in the Nr database. c GO category distribution of transcripts derived from M. oleifera. The histogram shows the results of classifying 55,843 genes into three classification of GO terms. d Clusters of Orthologous Group (COG) classification of M.oleifera unigenes which were classified into 25 functional categories