Expression patterns of numit rps13 in Arabidopsis thaliana. Shown are graphs from ANOVA analysis of microarray data from 51 organs and developmental stages (see Methods). Organ types and developmental stages are listed in Additional File 3. Error bars show 3 biological replicates. The Y-axis indicates the expression level normalized by log2. (A) Numit rps13 compared with nucp rps13. (B) Numit rps13 compared with three other nuclear-encoded mitochondrial ribosomal protein genes, rps9, rps10, and rps11 .