Table 1. Unbiased estimates of percent genetic variance explained by detected QTLs, in real and simulated data
Variance explained Data Four-locus model Best model
   0–10 0.26 0.11 0.2
10–20 0.15 0.27 0.18
20–30 0.14 0.33 0.16
30–40 0.13 0.2 0.12
40–50 0.09 0.07 0.09
50–60 0.07 0.02 0.06
>60 0.16 0.004 0.2
Median 0.27 0.24 0.27
  • Numbers in each cell represent the fraction of QTLs in a given data set that explain a percent of genetic variance in a given range. Data: QTLs detected across all real transcripts. QTLs detected in the subset of highly heritable transcripts were not significantly different (data not shown). Four-locus model: QTLs simulated under a model of four additive loci of equal effect. Best model: QTLs simulated under the best-fit additive model for highly heritable transcripts. QTLs with negative estimates were not included. When transcripts linked to multiple loci, results are for the QTL with the most significant P value in the linkage test.