Identification of genomic regions and diagnostic markers for resistance to aflatoxin contamination in peanut (Arachis hypogaea L.)

Table 1 Phenotypic variations of PSII, AFB₁ and AFB₂ of two parents and RILs in three trials

Trait	Env	Parents		RIL Population
Trait	Env	Zhonghua10	ICG 12625	Range	Mean ± SD	CV	H ²
PSII (%)	2013	92.33 ± 1.89	70.00 ± 3.74^**	25.00–100.00	95.28 ± 15.01	0.16	0.64
	2014	93.00 ± 2.16	77.67 ± 0.47^**	40.00–97.50	67.08 ± 14.14	0.21
	2015	93.00 ± 1.41	73.33 ± 2.49^**	53.33–100.00	90.35 ± 8.99	0.10
AFB₁ (μg/g)	2013	144.10 ± 35.10	85.39 ± 9.77	29.04–812.94	211.09 ± 124.76	0.59	0.78
	2014	143.06 ± 17.07	77.56 ± 4.43^**	10.34–443.47	144.59 ± 83.37	0.58
	2015	133.58 ± 14.14	86.52 ± 16.99^*	15.68–409.87	108.96 ± 66.94	0.61
AFB₂ (μg/g)	2013	7.60 ± 0.48	6.40 ± 1.48	2.54–56.17	18.64 ± 11.15	0.60	0.75
	2014	8.33 ± 0.35	6.59 ± 0.59^*	1.59–46.49	12.13 ± 8.59	0.71
	2015	7.63 ± 0.60	6.12 ± 0.93	0.68–27.18	8.54 ± 5.70	0.67

PSII percent seed infection index, AFB₁ aflatoxin B₁ content, AFB₂ aflatoxin B₂ content, Env environment, SD standard deviation, CV coefficient of variation, H² broad-sense heritability; ^*Difference is significant at p < 0.05 level, ^**Difference is significant at p < 0.01 level

ISSN: 2730-6844