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. 2018 Jan 25;19(2):357. doi: 10.3390/ijms19020357

Table 3.

QTLs of resistance to PSS4 and R3598 strains, detected by multiple QTL mapping (stepwise model) for the EG203 × MM738 DH population, on individual seasons and across the seasons (Comb).

Strains Season Var a Chr b QTL c Pos d Nearest Marker Interval e LOD R2 f Add Effect g Total R2 h
PSS4 1 SCOmax E03 ERPR3a 16.0 s296164 3.0–29.0 3.8 13.2 −0.38 *** 13.2
Wa E03 ERPR3a 16.0 s296164 2.0–27.2 3.4 11.9 −9.11 *** 11.9
CI E01 ERPR1 76.8 s219212 47.0–88.3 3.5 4.8 −4.96 *** 65.4
E02 ERPR2a 40.0 s135116 34.0–77.0 4.1 5.7 −5.55 ***
E03 ERPR3a 4.1 s227496 0.0–13.0 7.3 10.8 −7.69 ***
E03 ERPR3b 126.7 s231411 125.8–140.0 10.7 17.0 −9.49 ***
E04 ERPR4 101.3 s46892 99.0–102.0 8.5 13.0 −7.23 ***
E06 ERPR6a 23.0 s902 22.0–33.0 10.2 16.0 −7.32 ***
E07 ERPR7 41.6 s272460 35.0–45.0 6.4 9.4 −6.87 ***
Epistasis ERPR4:ERPR6a 2.9 4.0 −4.65 ***
2 SCOmax E02 ERPR2b 98.4 s51429 94.0–104.0 5.5 12.3 −0.33 *** 45.7
E04 ERPR4 79.0 s400 68.0–92.0 5.0 11.2 −0.32 ***
E06 ERPR6b 40.0 s431 38.0–43.0 9.9 25.3 −0.48 ***
E08 ERPR8 23.4 s105566 18.0–28.6 5.0 11.5 −0.31 ***
Wa E02 ERPR2b 98.4 s51429 94.0–103.0 5.7 13.8 −3.86 *** 40.4
E04 ERPR4 88.4 s208766 74.0–105.0 4.2 8.0 −2.93 ***
E06 ERPR6b 41.0 s147256 38.6–49.0 7.5 16.8 −4.41 ***
E08 ERPR8 23.4 s105566 18.0–54.0 4.7 11.0 −3.50 ***
CI E01 ERPR1 38.8 s231295 19.0–109.0 3.1 10.9 −5.83 *** 10.9
Comb SCOmax E02 ERPR2b 98.4 s51429 82.0–102.2 6.2 12.1 −0.30 *** 54.0
E03 ERPR3a 21.0 s168838 2.0–31.0 3.5 6.4 −0.23 ***
E04 ERPR4 71.3 s53085 66.0–97.0 5.5 10.5 −0.29 ***
E06 ERPR6b 40.0 s431 39.0–42.2 10.3 21.7 −0.43 ***
E08 ERPR8 23.4 s105566 18.0–28.6 5.5 10.4 −0.28 ***
Wa E02 ERPR2b 98.4 s51429 79.0–102.2 5.0 11.4 −3.29 *** 44.9
E04 ERPR4 97.0 s311121 68.0–107.0 4.8 10.9 −3.26 ***
E06 ERPR6b 40.3 s147256 39.0–43.0 7.7 18.5 −4.28 ***
E08 ERPR8 23.4 s105566 17.0–50.0 4.6 10.4 −3.17 ***
CI E01 ERPR1 68.0 s168619 43.3–84.2 4.5 7.9 −4.98 *** 56.9
E02 ERPR2b 87.7 s131841 74.0–99.2 5.0 8.9 −5.13 ***
E03 ERPR3a 4.1 s227496 2.0–27.0 4.5 7.8 −4.98 ***
E03 ERPR3b 127.5 s231125 124.0–130.0 7.1 13.1 −6.37 ***
E04 ERPR4 71.0 s53085 66.6–79.6 6.6 12.0 −6.22 ***
E06 ERPR6a 39.4 s56388 26.0–45.0 6.5 11.9 −6.19 ***
R3598 1 SCOb E03 ERPR3a 4.7 s231544 0.0–28.0 3.2 11.4 −1.09 *** 11.4
CI10b E03 ERPR3a 5.0 s197676 2.0–7.2 9.4 29.7 −1.34 *** 29.7
CIb E03 ERPR3a 5.0 s197676 3.0–7.2 7.3 21.4 −1.39 *** 31.3
E06 ERPR6c 46.0 s681 39.0–65.0 4.3 12.0 −1.06 ***
2 SCOb ns ns ns ns ns ns ns ns ns
CI10b E09 ERPR9 51.5 s75856 42.9–59.1 4.4 15.0 −0.95 *** 15.0
CIb ns ns ns ns ns ns ns ns ns
Comb SCO.b ns ns ns ns ns ns ns ns ns
CI10.b E03 ERPR3a 4.1 s227496 0.0–7.0 8.0 25.8 −1.20 *** 25.8
CI.b E03 ERPR3a 5.0 s197676 0.0–14.0 4.0 12.6 −1.04 *** 21.6
E06 ERPR6c 46.0 s681 9.9–70.2 3.3 10.3 −0.91 ***

a The variables used are the maximal score (SCOmax), the BLUP of area under disease progress curve for wilting percentage (Wa) and the colonization index (CI). b Linkage groups named according to their chromosome correspondence. c Name of the QTL: Eggplant Ralstonia Pseudosolanacearum Resistance (ERPR) followed by the chromosome number. When several QTLs were detected on the same chromosome, a letter follows the QTL name for identification purposes. d Position of the maximum logarithm of odds score (LOD) in centimorgans (cM). e 95% Bayesian confidence interval (cM). f Estimates of the percentage of phenotypic variance explained by the QTL detected. g Additive effect: a positive value indicates that the resistance comes from the E8 (MM738) allele, a negative value indicates that the resistance comes from the E4 (EG203) allele. h Estimates of the total percentage of phenotypic variance explained by the additive model; ns: QTLs not detected above the LOD threshold. R2;***: significant at p < 0.001.