TABLE 7

QTL for 13 inflorescence development and morphology traits mapped in Cvi × Ler RI lines

TraitChromosomeMap position, cM (nearest marker)2-LOD support limit, cM range (flanking markers)aAdditive effectb[r2]c
Bolting time17.71 (AXR-1)7.61–12.84 (PVV4–DF.162L)1.350.091
515.9 (BH.325L)14.32–19.8 (FD.239L–BH.107L)−2.220.195
542.15 (GH.121L)32.91–45.45 (DF.184L–DF.154C)−1.330.076
5104.32 (BF.168L)100.35–109.9 (HH.143C–GD.222C)1.070.049
Length of reproductive phase of main axis190.67 (HH.375L)83.1–101.38 (EC.88C–GH.157L)−0.640.054
Time to maturity of main axis17.71 (AXR-1)0.01–21.41 (PVV4–CC.120C)1.060.038
515.4 (BH.325L)14.32–19 (FD.239L–BH.107L)−2.530.175
543.75 (GH.121L)39.16–48.19 (GH.117C–HH.480C)−1.560.073
5108.65 (DF.119L)102.27–109.9 (BF.168L–GD.222C)1.410.056
Rosette leaves at bolting17.71 (AXR-1)0.01–12.44 (PVV4–DF.162L)0.300.035
322.46 (GH.390L)18.72–26.56 (CC.110L–HH.158L)0.330.037
353.45 (HH.117C)48.21–61.64 (AD.108L–GH.172C)−0.380.041
516.90 (BH.325L)14.52–20.20 (FD.239L–BH.107L)− 0.830.212
534.31 (DF.184L)31.54–42.65 (DF.184L–DF.154C)−0.540.086
5109.45 (GD.222C)103.82–109.45 (BF.168–GD.222C)0.530.113
Rosette diameter249.03 (er)46.88–52.13 (FD.150C–AD.191L)−0.120.210
30.01 (DF.77C)0–1.71 (DF.77C–GB.120C)−0.110.155
321.49 (GH.390L)12.09–28.3 (FD.111L–GD.318C)0.090.082
380.18 (AD.112L)74.67–80.78 (DF.65L–AD.112L)0.090.123
443.44 (g4539)32.07–51.12 (FD.154L–FD.167L)−0.060.058
512.51 (FD.239L)3.4–19.1 (CH.690C–BH.107L)0.060.059
568.11 (CH.88L)61.29–70.1 (EC.395C–CD.116L)−0.070.075
Plant height186.51 (GD.160C)81.3–96.72 (EC.88C–BF.116C)−0.540.020
249.33 (er)48.27–50.83 (GD.460L–AD.191L)−3.160.674
312.09 (FD.111L)12.06–29.47 (FD.111L–GD.318C)0.560.013
339.6 (GB.210L)32.32–50.12 (AD.92L–HH.440L)− 0.440.012
46.98 (GH.250C)1.21–15.28 (ANL2–CH.169C)0.560.021
514.52 (FD.239L)7.81–21.17 (BH.144L–BF.269C)0.530.017
Main inflorescence fruits115.24 (EC.480C)0–20.9 (DF.162L–CC.120C)−1.020.090
249.03 (er)43.4–52.23 (GB.150L–AD.191L)1.060.098
516.5 (BH.325L)10.21–41.06 (BH.144L–GH.121L)0.910.058
Axillary fruits249.63 (er)37.84–53.03 (BF.221L–AD.191L)1.020.108
34.50 (GB.120C)0–15.72 (DF.77C–CC.266L)− 0.850.072
372.46 (DF.65L)61.56–80.8 (GH.172C–HH.90L)−0.780.062
535.81 (DF.184L)26.46–36.69 (DF.231C–GH.473C)0.780.060
Nonelongated 2° meristems17.71 (AXR-1)2.91–10.71 (PVV4–HH.335C)0.210.089
365.95 (FD.98C)57.36–74.97 (HH.117C–AD.495L)0.170.063
517.8 (BH.325L)14.01–26.46 (FD.239L–DF.231C)−0.210.064
536.61 (DF.184L)32.21–36.69 (DF.231C–GH.473C)−0.260.121
5100.35 (HH.143C)94.45–109.9 (FD.345C–GD.222C)0.160.057
Elongated axils17.41 (AXR-1)0–13.74 (PVV4–DF.162L)−0.100.071
188.81 (HH.375L)79.12–101.38 (DF.260L–GH.157L)−0.090.058
247.48 (FD.150C)43.4–48.07 (GB.150L–GD.460L)0.120.095
31.41 (GB.120C)0–11.76 (DF.77C–FD.111L)−0.090.063
372.46 (DF.65L)61.56–80.8 (GH.172C–HH.90L)−0.080.049
531.44 (DF.184L)26.46–31.81 (DF.231C–DF.184L)0.090.053
2° inflorescence meristems on main axis17.71 (AXR-1)2.01–10.21 (PVV4–HH.335C)0.130.056
20.51 (AD.156C)0.01–13.98 (AD.156C–GH.580L)0.110.038
243.99 (GB.150L)41.20–51.53 (FD.85C–AD.191L)0.210.139
32.01 (GB.120C)0–5.7 (DF.77C–EG.75L)−0.150.066
478.88 (BH.342C)74.38–78.88 (GB.750C–BH.342C)0.120.040
524.56 (AD.114C)21.67–26.54 (BF.269C–DF.231C)−0.230.157
543.65 (GH.121L)36.69–59.47 (GH.473C–EC.395C)−0.140.047
5100.15 (HH.143C)92.00–109.45 (CC.262C–GD.222C)0.130.049
Early flowers19.41 (AXR-1)2.41–14.5 (PVV4–BH.147L)−0.310.052
242.6 (FD.85C)37.24–43.49 (BF.221L–GB.150L)0.510.103
250.33 (er)48.37–52.53 (GD.460L–AD.191L)0.790.280
515.22 (BH.325L)8.71–20.3 (BH.144L–BF.269C)0.370.064
Total fruits111.41 (HH.335C)0–19.9 (PVV4–CC.120C)−1.560.064
249.33 (er)43.49–52.63 (GB.150L–AD.191L)2.050.110
33.00 (GB.120C)0–15.72 (DF.77C–CC.266L)−1.440.053
372.46 (DF.65L)61.56–79.68 (GH.172C–HH.90L)−1.480.058
537.66 (GH.117C)26.46–42.15 (DF.231C–GH.121L)1.540.060
  • a Markers nearest (but outside of) the 2-LOD support limits.

  • b The additive effect (a) of a QTL is defined as (Q1Q1Q2Q2)/2, where Q1Q1 and Q2Q2 represent the mean phenotypes of RI lines homozygous for alternative genotypes at a QTL position. The sign of the additive effect corresponds to the direction of effect of alleles from the Landsberg erecta ecotype.

  • c Proportion of variance explained by the QTL after accounting for background markers.