Fig. 5: Results from analyses of transgressive expression in hybrids.
From: Gene regulation and speciation in a migratory divide between songbirds
a Heatmap limited to genes exhibiting transgressive expression in at least one brain region and migratory state. Genes that were transgressively expressed are shown in yellow. Numbers below the heatmap show how many genes were transgressively expressed in each brain region and condition (# transgressive during non-migratory state / # transgressive during migratory state). b Results from GO analyses using genes underexpressed in HCD during the non-migratory state. The top three GO categories from Biological Processes are shown; remaining ontologies enriched in these and other brain regions can be found in Supplementary Data 5. c Example patterns of transgressive gene expression at two genes in the HT, including one gene important for energy production in the mitochondria (NDUFA3) and one that is transcribed in the nucleus but forms part of the mitochondrial ribosome (MRPL11; n = 33 birds, 7 coastal, 8 inland and 18 hybrid). HT hypothalamus, HCD hippocampus dorsal, HCV hippocampus ventral, CNH Cluster N hyperpallium, CNM Cluster N mesopallium. Boxplots show minimum, maximim, median, first and third quartiles. Source data for panels a and c are provided as a Source Data file.
