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Fig. 5 | BMC Evolutionary Biology

Fig. 5

From: Unravelling the hybrid vigor in domestic equids: the effect of hybridization on bone shape variation and covariation

Fig. 5

Scatter plot of the first PLS axis describing shape covariation between the humerus and radio-ulna, with visualizations of the associated shape changes (in transparent: extreme negative; in opaque: extreme positive). The color of the arrows corresponds to the intensity of shape deformation along the PLS axis (red: high intensity; blue: low intensity). TC: total covariation; rPLS: PLS correlation coefficient

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