Fig. 1.
Correlations between phenotypic values for each trait and environment. The trait–environment pairs are listed as the abbreviation for the trait (lut, lutein; zea, zeaxanthin; bcx, β-cryptoxanthin; bc, β-carotene; proa, provitamin A) and the environment [Agua Fría 2012, Agua Fría 2013, Tlaltizapan 2010, and Tlaltizapan 2011 (AF12, AF13, TL10, and TL11, respectively)]. The heatmap is arranged in clustered groups denoted with the line diagram. Red corresponds to a positive correlation, and blue corresponds to a negative correlation. A darker color indicates a higher absolute value of the correlation.