Fig. 4: The effect of artificial selection for higher polarization in neuroanatomical allometric relationships. | Nature Communications

Fig. 4: The effect of artificial selection for higher polarization in neuroanatomical allometric relationships.

From: Evolution of schooling drives changes in neuroanatomy and motion characteristics across predation contexts in guppies

Fig. 4

a The top left panel shows the allometric relationship between whole brain size volume and standard length of the fish (SL). Remaining panels show the relationship between each separate brain region with the rest of the brain ordered rostrally to caudally. Asterisks indicate brain regions with non-overlapping confidence intervals between polarization-selected females (pink circles; n = 13) and control females (blue crosses; n = 15) in two consistent statistical analyses (Supplementary Tables 6 and 7). b Reconstructed brain regions from microCT - scanned guppy brains. A dorsal (left) and lateral (right) view of a guppy brain with the major brain regions color coded: olfactory bulbs (OB; dark blue), dorsal telencephalon (DT; red), ventral telencephalon (VT; light green), optic tectum (OT; yellow), hypothalamus (Hyp; turquoise), thalamus (Th; purple), cerebellum (Cb; brown), medulla oblongata (MO; dark green). Not visible but measured brain regions include: torus semicircularis, nucleus glomerulus and optic tectum core. Source data are provided as a Source Data file.

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