Table 2 Summary of QTLs identified for drought tolerance related traits in poplar populations
Traits | Treatment | Linkage group | QTL number | Logarithm of odds | Phenotypic explanation rate (%) |
|---|---|---|---|---|---|
Relative height growth (RH) | Control | LG4-5,LG8,LG10,LG13,LG15 | 25 | 3.01-4.47 | 9.1-13.1 |
Drought | LG2,LG4,LG8,LG15,LG19 | 8 | 3.01-4.96 | 9.0-14.5 | |
Drought index | LG2,LG13,LG16 | 3 | 3.16-4.08 | 9.5-12.1 | |
Relative diameter gowth (RD) | Control | LG3,LG5,LG9,LG14-16,LG18-19 | 22 | 3.02-5.51 | 9.1-16.0 |
Drought | LG1-2,LG7-8,LG18 | 11 | 3.07-4.63 | 9.2-13.6 | |
Drought index | LG5,LG8 | 3 | 3.3-3.95 | 9.9-11.7 | |
Leaf senecence (LS) | Control | LG1,LG4,LG6,LG8,LG10,LG14,LG16 | 15 | 3.01-4.02 | 9.1-11.9 |
Drought | LG5,LG8,LG12,LG16-19 | 15 | 3.05-3.91 | 9.2-11.6 | |
Drought index | LG2,LG4,LG6,LG7,LG10 | 24 | 3.0-4.5 | 9.0-13.2 | |
Specific leaf area (SLA) | Control | LG3-4,LG8,LG15 | 5 | 3.08-4.03 | 9.3-11.9 |
Drought | LG2-3,LG10 | 9 | 3.07-3.43 | 9.2-10.3 | |
Drought index | LG2,LG4,LG6,LG8,LG12,LG14 | 17 | 3.01-4.52 | 9.1-13.3 | |
Leaf relative water content (LRW) | Control | LG4,LG6,LG7,LG11-12,LG16-18 | 25 | 3.02-4.33 | 9.1-12.8 |
Drought | LG3-4,LG6,LG10,LG14,LG16 | 20 | 3.03-5.15 | 9.1-15.0 | |
Drought index | LG4,LG10,LG16,LG19 | 6 | 3.18-3.78 | 9.5-11.2 |