Variations in gene expression in shoots and roots of maize hybrids. (a) Identification of genes showing additive or non-additive expression in shoots and roots of maize hybrids. Only genes showing the same pattern of expression variations between reciprocal hybrids were included. (b) Functional categories of genes upregulated in both shoots and roots of hybrids. The biological process with false-discovery rate adjusted P-value <0.01 is shown. GO, Gene Ontology.
He et al. Genome Biology 2013 14:R57 doi:10.1186/gb-2013-14-6-r57