Single-nucleotide polymorphisms(SNPs) in a sucrose synthase gene are associated with wood properties in Catalpa fargesii bur

Table 3 List of marker effects of significant marker–trait pairs

Trait	SNP	2a^a	d^b	d/a	2a/S_p	Frequency	ɑ^c
Wood basic density	SNP5	−0.046	−0.007	0.304	−1.345	8.0%(T)	−0.00003
	SNP6	−0.027	0.004	−0.296	−0.790	9.2%(T)	−0.00008
	SNP9	0.053	−0.005	−0.189	1.550	9.6%(A)	0.00009
	SNP27	−0.060	0.016	−0.533	−1.755	9.6%(C)	0.00053
	SNP30	−0.011	0.031	−5.636	−0.322	11.2%(C)	0.00031

^aCalculated as the difference between the phenotypic means observed within each homozygous class (2a = |G_BB − G_bb|, where G_ij is the trait mean in the ij^th genotypic class)
^bCalculated as the difference between the phenotypic mean observed within the heterozygous class and the average phenotypic mean across both homozygous classes [d = G_Bb − 0.5(G_BB + G_bb), where G_ij is the trait mean in the ij^th genotypic class]
S_p: Standard deviation of the phenotypic trait under consideration
^cThe additive effect was calculated as a = p_B (G_BB) + p_b (G_Bb) − G, where G is the overall trait mean, Gij is the trait mean in the ij^th genotypic class, and p_i is the frequency of the i^th marker allele

ISSN: 2730-6844