Table 2.

Genetic variation, broad-sense heritability, and genetic correlation of nectar and pollen chemistry across six Vaccinium corymbosum cultivars (‘Bonus,’ ‘Friendship,’ ‘Liberty,’ ‘Northland,’ ‘Patriot,’ ‘Reka’ – n = 5 plants per cultivar, n = 4 for ‘Northland’).

Trait	Material type	Genetic variation (χ2)	Heritability (H2)	Genetic correlation
				Chemical diversity	Chemical composition	Total Amino acids	Total Phenolic acids	Total Flavonols	Chemical diversity
Chemical diversity	Nectar	19.5**	0.70 0.19**	-0.04	0.04	0.05	0.03	0.04	0.01
	Pollen	14.6**	0.63 0.20**
Chemical composition	Nectar	21.5**	0.73 0.18**	0.41	0.17	0.76†	0.76†	0.86†	0.61†
	Pollen	34.2**	0.85 0.14**
Total Amino acids	Nectar	22.6**	0.74 0.17**	-0.30	-0.45	-0.11	0.77†	0.89†	0.60†
	Pollen	2.4	0.25 0.18**
Total Phenolic acids	Nectar	2.1	0.23 0.17*	-0.49	-0.52	0.35	-0.03	0.87†	0.73†
	Pollen	14.0**	0.63 0.20**
Total Flavonols	Nectar	0.0	0.00 0.09	0.07	0.09	0.004	-0.09	0.06	0.68†
	Pollen	34.7**	0.86 0.13**
Total Flavan-3-ols	Pollen	7.4*	0.47 0.21**

Magnitude of genetic variation is indicated by the chi-squared statistic (χ²). Within-material genetic correlation is given above and below the diagonal for pollen and nectar, respectively, and between-material correlation on the diagonal. Values for total Flavan-3-ols are presented for pollen only, as this compound class was not identified in nectar. ^†statistical support inferred from Bayesian 95% credible intervals. ^∗p = < 0.05; ^∗∗p = < 0.001.