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Table 1 Response to selection and variance components between generations G0 and G6

From: Dearth of polymorphism associated with a sustained response to selection for flowering time in maize

Family df Response stde p-value R 2 Median(H 2) Max(H 2)
FL1 330 16.04 1.20 0.00000 0.35 0.32 0.64
FL2 310 3.66 1.10 0.00104 0.03 0.01 0.30
ML1 226 8.89 1.51 0.00000 0.13 0.00 0.28
ML2 303 12.38 1.19 0.00000 0.26 0.17 0.44
ML3 171 7.68 2.05 0.00025 0.07 0.05 0.29
FE1 316 -8.47 0.82 0.00000 0.25 0.02 0.35
FE2 313 -6.04 0.80 0.00000 0.15 0.13 0.19
ME1 332 -11.22 1.14 0.00000 0.22 0.07 0.25
ME2 326 -10.32 1.17 0.00000 0.19 0.02 0.40
F-CONTROL 142 -0.39 1.49 0.80 0.00   
M-CONTROL 137 -2.68 2.21 0.23 0.00   
  1. The response to selection was analyzed separately in each family from progenitor phenotypic data after correction for block and year effects. Response (degree-days per generation) is measured as the slope of the linear regression of flowering date (thermal time) on generations of selection (see Methods section). df is the number of degrees of freedom. Note that variation between families mainly denotes variations in the number of progenitors. stde is the standard error for the response, and R 2 the adjusted R-squared of the regression model. Broad-sense heritability (H 2) was estimated at each generation as the ratio of the variance between progenitors belonging to the same family on the total phenotypic variance