Table 2 . Estimates of the initial mean phenotype (ž0), per-generation rate of change in the mean phenotype (ΔM), per-generation rate of input of mutational variance (ΔV), genomic mutation rate (Umin), and average mutational effect as a fraction of the initial mean phenotype (a′max) for Lake Marie, KlamathSGT, and KlamathLGT lines.
| Trait | Population | ž0 | ΔM | ΔV | Umin | a′max |
|---|---|---|---|---|---|---|
| SM | Marie | 1.84 (0.02) | 0.003 (0.001) | 0.0001 (0.0000) | 0.027 (0.001) | 0.013 (0.001) |
| KlamathSGT | 2.03 (0.03) | 0.003 (0.001)a | 0.0001 (0.0000)a | 0.028 (0.001)a | 0.012 (0.001)a | |
| KlamathLGT | 2.03 (0.03) | 0.012 (0.002) | 0.0002 (0.0001) | 0.397 (0.069) | 0.006 (0.000) | |
| CS | Marie | 7.63 (0.45) | −0.194 (0.055) | 0.1299 (0.0930) | 0.157 (0.014) | −0.082 (0.031) |
| KlamathSGT | 8.11 (1.01) | −0.020 (0.018)a,b | 0.1114 (0.0380)a | 0.002 (0.000)a,b | −0.141 (0.055)a | |
| KlamathLGT | 8.11 (1.01) | −0.061 (0.059) | 0.2216 (0.1048) | 0.015 (0.046) | −0.022 (0.000) | |
| AM | Marie | 6.61 (0.28) | −0.002 (0.005) | 0.0088 (0.0030) | NA | NA |
| KlamathSGT | 6.38 (0.30) | 0.007 (0.002)a,b | 0.0038 (0.0020)a | 0.006 (0.000)a | 0.074 (0.012) | |
| KlamathLGT | 6.38 (0.30) | 0.019 (0.012) | 0.0102 (0.0020) | 0.010 (0.000) | 0.060 (0.010) |
Estimates for clutch size represent an average value of the separate analyses of clutches 1–4. Standard errors are given in parentheses. SM, size at maturity (mm); CS, clutch size; and AM, age at maturity (days). Estimates of Umin and a′max were not calculated for Marie AM because the standard error of ΔM exceeds the mean (indicated as NA).
a
Indicates a significant difference between KlamathSGT and KlamathLGT lines.
b
Indicates a significant difference between Marie and Klamath D. pulicaria populations.