TABLE 4

QTL detected in the NIL population

Support intervalb (cM)Support bin (cM)cExplained variance (%)Total explained varianceg (%)
TraitChraRestricteddUnrestrictedeEffectf
FT10.0–21.63.9–7.870.33.2−3.283.2
131.4–40.633.4–40.718.00.5−1.0
173.3–122.083.6–877.10.7−0.7
2174.4–204.7200.9–201.822.30.61.5
5388.4–434.2392.3–39552.142.815.7
SL110.8–27.417.3–21.764.04.8−3.166.1
131.4–40.633.4–40.717.10.6−1.1
173.3–125.9122.1–12634.92.8−1.7
2160.8–207.2162–174.573.45.34.9
3270.1–288.4287.1–288.437.11.6−1.7
4359.5–375.7368.2–375.732.21.7−1.6
5388.3–418.9392.3–39532.20.72.7
5434.2–436.0434.3–436.129.63.8−1.4
5441.4–459.3454.3–459.428.21.1−1.1
TL10.0–33.317.3–21.766.21.7−6.387.7
164.7–125.9122.1–12648.83.8−3.8
2160.8–207.2174.5–178.891.910.518.5
3287.0–288.4287.1–288.419.00.4−2.1
5389.9–416.1411.7–416.234.11.73.7
5434.2–454.3434.3–436.145.01.4−3.9
IB5388.3–434.2392.3–39546.337.73.866.1
BB10.0–15.13.9–7.817.71.8−0.626.7
140.6–125.994.5–101.617.99.00.8
2174.4–189.1179.7–189.211.42.4−0.5
5388.3–434.2392.3–39514.41.7−0.7
5483.2–487.8483.2–487.819.31.1−0.8
TB10.0–15.97.8–9.924.12.2−0.844.1
140.6–125.994.5–101.614.04.10.8
2174.4–189.1179.7–189.27.61.5−0.4
5388.3–434.2392.3–39543.217.43.1
  • FT, flowering time; SL, length until first silique; TL, total plant length; IB, main inflorescence branch number; BB, basal branch number; TB, total branch number.

  • a Chromosome number.

  • b The region spanned by consecutive bins, significantly (P < 0.001) differing from Ler and sharing the same direction of effect, was taken as the support interval.

  • c Position of the bin within the QTL support interval showing the largest effect.

  • d Within the QTL support interval the bin showing the largest effect was compared to Ler in an ANOVA analysis. The among-genotype component of ANOVA was taken as an estimator of explained variance.

  • e All lines in the population were subjected to ANOVA using the bin described in footnote d as a fixed factor. The among-genotype component of ANOVA was taken as an estimator of explained variance.

  • f Effect of QTL calculated as μB − μA, where μA is the mean value of all Ler lines and μB is the mean value of all lines in the bin described in footnote d. Effects are given in days (flowering time), centimeters (length at first silique and total length), or numbers (main inflorescence branch number, basal branch number, and total branch number).

  • g All bins together with Ler were analyzed by ANOVA and the among-genotype component was taken as a measure of totally explained variance.