Supplemental Table 1 Correlation matrix heat map of proanthocyanidin (PA) subunit concentrations and composition
in 2014 among the hybrid population (Pop AC). Higher absolute correlation coefficients
are shown in higher orange color intensity, as indicated on the scale in the left
side of the table.
Supplemental Table 2 Correlation matrix heat map of proanthocyanidin (PA) subunit concentrations and
composition in 2015 among the hybrid population (Pop AC). Higher absolute correlation
coefficients are shown in higher orange color intensity, as indicated on the scale
in the left side of the table.
Supplemental Table 3 Quantitative trait locus (QTL) analysis results of proanthocyanidin (PA) subunit
concentrations and composition in the hybrid population (Pop AC). Full list of detected
QTLs, including those only identified in a single year, is shown. LOD, logarithm of
the odds.
Supplemental Figure 1 Histograms of proanthocyanidin (PA) subunit concentrations and composition in the
skin and seeds among the hybrid population (Pop AC) over two years. Histograms of
PA variables in the skin and seeds for two years (2014 and 2015): A-F) skin PA subunit
concentrations; G-I) skin total PA concentrations; J-L) skin percentage of prodelphindin
subunit (%P), percentage of galloylation (%G), and mean degree of polymerization (mDP);
M-R) seed PA subunit concentrations; S-V) seed total PA concentrations; W, X) seed
%G and mDP. The vertical axis indicates the frequency of a given class for the population.
Arrows indicate the concentrations of the two parents. MA, Muscat of Alexandria; CE,
Campbell Early. PA subunits at the extension position are indicated by (Ex), and those
at the terminal position are indicated by (T). The correlation coefficients between
years are shown in the upper right section in each histogram.
Supplemental Figure 2 Box plot of proanthocyanidin (PA) subunit concentrations and composition for the
genotypes of simple sequence repeat markers nearest to the quantitative trait locus
in the hybrid population (Pop AC). Genotypes are expressed as allele lengths in base
pairs (bp). A horizontal line inside a box shows the median value, while a line through
a box indicates the mean. Box height indicates 50% of the data. Different letters
(α, β, γ) indicate statistical significance at p < 0.05 by Tukey’s honest significant
difference. PA subunits at the extension position are indicated by (Ex), and those
at the terminal position are indicated by (T). %P, percentage of prodelphinidin subunit;
%G, percentage of galloylation; mDP, mean degree of polymerization.