Quantitative Trait Loci Analysis of Folate Content in Dry Beans, Phaseolus vulgaris L.

Table 2

The single nucleotide polymorphism markers associated with the folate content in the F₂ of Othello/Redhawk in single marker quantitative trait loci analysis for the estimates of additive and dominance effects and the proportion of phenotypic variance accounted for by each locus.

			First injected solution								Second injected solution
Marker	Position		5-Methyltetrahydrofolate				Total folate				5-Methyltetrahydrofolate				Total folate
	Pv	cM	P value	Add.	Dom.	𝑅^2𝑝	P value	Add.	Dom.	𝑅^2𝑝	P value	Add.	Dom.	𝑅^2𝑝	P value	Add.	Dom.	𝑅^2𝑝
g457_B	2	112.6	ns	10.26	−2.37	1.2	ns	10.39	−1.43	1.1	ns	0.61	22.9**	4.8	0.04	0.89	25.39**	8.1
g1286	9	62.5	0.03	2.32	28.42**	7.7	0.03	2.71	31.08***	7.9	ns	3.65	−1.21	0.4	ns	4.22	−2.66	0.5
g2498	9	58.6	0.04	1.34	28.91**	7.8	0.04	1.15	30.98**	7.7	ns	0.97	−6.2	0.7	ns	0.07	−8.48	1.1
g2135	11	9.01	0.02	−11.24	24.37*	9.3	0.01	−13.14	27.45*	10.5	ns	−2.15	6.63	0.3	ns	−2.07	8.48	0.4
Total variance explained by significant markers						18				19				ns				8

Add: additive effect at each locus estimated as half the difference of the two homozygous genotypic groups.
Dom: dominance effect estimated as the deviation of heterozygous genotypic group from mid parental genotypes at each locus
𝑅²_𝑝: the proportion of phenotypic variance accounted for by each locus.
* and ** are significant at P < 0.05 and 0.01; ns: not significant at P < 0.05.