Table 1.

LOD scores for univariate analyses

PhenotypeChrLodPos.Additive EffectDominance Effect% Variance
Watermaze acquisition
 Distance42.0301.41.52.4
 Latency42.2301.21.32.6
Watermaze probe trial
 Passes through target area42.9420.90.33.4
122.528−0.80.42.9
Open field
 Total distance33.190−3.3−2.04.7
 Entries into center73.1544.7−26.76.7
153.61217.7−10.35.9
 Time in periphery62.402.2−0.32.9
132.628−2.2−2.74.6
192.2140.2−4.35.6
Conditioned avoidance
 Escapes72.644−0.8−1.76.7
 Avoidances12.4800.0−1.03.4
  • LOD scores of 2.0 and greater are shown; for some phenotypes (for example time spent in the target quadrant during the water maze probe trial), all LOD scores were <2, and so no results are shown. The position (Pos.) on the chromosome (Chr) of the LOD score is shown in centimorgans. The effect of the QTL is given under both additive and dominance models. The last column gives the percentage of the total phenotypic variance attributable to the QTL.