Figure 3.
Morphological traits in F2 hybrid offspring. (a) Cross‐breeding process between purebred Surface (silver) and Pachón (albino) to produce F1 progeny, and F1 crosses to produce F2 hybrids used for study. (b) Heat map of the correlations between morphological traits in F2 offspring (R 2 values shown). (c) Eye size does not differ between pigmented and albino individuals (t‐test: t 121 = 1.856, p < .0659). (d) Linear regression between jaw width and eye size reveals a significant association (F 1,121 = 9.076, p < .0032). (e) Linear regression between head width and jaw width reveals a significant association (F 1,121 = 137.5, p < .0001). Albino individuals are depicted as red squares, while pigmented individuals are depicted as black circles. [Color figure can be viewed at wileyonlinelibrary.com]