Figure 4: RNAi pathway and lethal targets.
From: Genome sequence of the metazoan plant-parasitic nematode Meloidogyne incognita

(a) Comparison of the RNAi pathway genes of C. elegans and M. incognita. A gray background indicates that at least one homologous gene was found in M. incognita, and a white background indicates that no homologous gene was found in M. incognita. (b) Distribution of orthologs to C. elegans lethal RNAi genes (Ce, black) between M. incognita (Mi, red), C. briggsae and B. malayi (Cb & Bm, green), D. melanogaster and three fungi, N. crassa, G. zea and M. grisea (Dm & 3 fungi, gray) using OrthoMCL. A yellow background indicates 148 nematode-only gene clusters.