Table 2.
The three gene model in five segregating populations based on phenotypic data and QTL analysis.
| NemX–N (rkn1) aabbcc | Pima S-7–P (RKN2) AABBcc | SJ-2–S (RKN3) AAbbCC | |
|---|---|---|---|
| NemX – N (rkn1) aabbcc | aabbcc (R**) |
AaBb (F1PXN, R) AaCc (F1NXS, S) Testcross N x F1 (PXS): Exp#:1R:1S (26R:26S) Obs: 29R:23S χ2 = 0.692, P = 0.405 (Wang C. et al., 2008) GI*: 63.2% |
AaCc (F1, S**) aaC_,aacc (R) F2 (NXSJ): Exp:1R:3S (24R:72S) Obs: 20R:76S χ2 = 0.889, P = 0.346 (Wang et al., 2006b) GI: 37% F2:8 (NXSJ): Exp:1R:1S (34.5R:34.5S) Obs: 34R:36S χ2 = 0.014, P = 0.904 (Wang et al., 2006a) GI: 92% |
| Pima S-7–P (RKN2) AABBcc |
aaB_, AaB_, aabb (R) F1 (PXN): AaBb (R) F2(PXN): Exp:10R:6S (106R:63S) Obs: 105R:64S χ2 = 0.025, P = 0.87 (Wang C. et al., 2008) GI: 30% F7(PXN): Exp: 1R:1S (54R:54S) Obs: 71R:37S χ2 = 10.704, P = 0.001 GI: 51% |
AABBcc (S) |
BBC_ (R); F1(PXSJ): BbCc (S) F2(PXSJ): Exp:3R:13S Obs: 20R:86S χ2 = 0, P = 1 GI: 25% |
| SJ-2 – SJ (RKN3) AAbbCC | AAbbCC (S) |
Chi-square test is based on galling index (GI) data since root galling and nematode reproduction had similar result.
The number is based on the highest value of GI phenotypic variance in the interval mapping on the Chromosome 11 region.
R, resistant phenotype; S, susceptible phenotype.