Table 2. Summary of SAM trait QTL.
| Meristem Trait | No. QTL (+)a | Range of PVE | Effect Rangeb | Model PVE |
|---|---|---|---|---|
| Height, μm | 8 (6) | 4–16% | 3.02−6.1 | 0.68 |
| Arc length, μm | 8 (7) | 5–9% | 3.49−4.75 | 0.69 |
| Width, μm | 8 (4) | 6–19% | 2.38−4.87 | 0.61 |
| Midpoint width, μm | 8 (5) | 7–12% | 2.04−2.94 | 0.60 |
| Cell count in arc, cells | 9 (6) | 4–23% | 0.34−0.79 | 0.74 |
| Volume, million μm3 | 7 (6) | 5–16% | 1.50−2.71E5 | 0.55 |
| Height/width ratio | 6 (4) | 6–20% | 0.24−0.57 | 0.55 |
| Plastochron internode, μm | 9 (5) | 5–21% | 1.47−4.23 | 0.66 |
SAM, shoot apical meristem; QTL, quantitative trait loci; PVE, phenotypic variation explained.
a
Numbers in parenthesis indicate QTL with positive effect in B73.
b
Effect ranges shown are absolute values.