Genetic mapping and QTL analysis for peanut smut resistance

BMC Plant Biology

Table 2 Detail of the QTLs detected for resistance to peanut smut on a RIL population of Arachis based on a Halley-Knott genome scan QTL detection model

LG^a	Genetic Position^b	Physical Position^c	SNP Marker	LOD^d	LOD threshold^e	95% Bayes interval^f	LOD interval^g	Additive effect^h	PVEⁱ	% ^j
A08	15.2	5.03	AX-147229403	4.31	2.04	0–71.72	0–18.78	0.12	17.52	40.87
A02/B02	4	3.56	AX-147212854	2.31	1.15	0–17.28	0–17.28	0.105	9.06	32.07

Resistance to peanut smut is estimated for the level of square root transformed smut incidence; ^aLinkage group. ^bGenetic position in Kosambi cM for each LG. ^cPhysical position (Mbp) based on A. hypogaea cv. Tifrunner pseudomolecules [2] (https://peanutbase.org). ^dLOD score at QTL peak. ^eLOD threshold based on 1000 permutations at 1% level of significance. ^f95% Bayes credible intervals. ^gLOD support interval. ^hAdditive effect values, positive values indicate that alleles come from one of the wild diploid species (2n = 2x = 20) (A. correntina, A. cardenasii or A. batizocoi) and negative values indicate that alleles come from the A. hypogaea experimental elite line JS17304-7-B (2n = 4x = 40). ⁱProportion of the phenotypic variance explained by the QTL. ^jPercentage (%) of decrease in peanut smut incidence

ISSN: 1471-2229