Table 2 Estimated variance components (genetic variance,\(\widehat {V}_{\mathrm{G}}\), environmental variance, \(\widehat {V}_{\mathrm{E}}\), and additive genetic variance, \(\widehat {V}_{\mathrm{A}}\)) and broad and narrow sense heritability estimates (H2 and h2, respectively) ± standard errors (SE), as well as evolvability (IA = \(\widehat {V}_{\mathrm{A}}\)/(mean CTmin)2 × 100) for CTmin at the five developmental temperatures and for the slope of CTmin across temperatures

From: Strong impact of thermal environment on the quantitative genetic basis of a key stress tolerance trait

Trait

\(\widehat {V}_{\mathrm{G}}\)

\(\widehat {V}_{\mathrm{E}}\)

\(\widehat {V}_{\mathrm{A}}\)

H 2

h 2

I A

CTmin 17 °C

0.1005 ± 0.00101

0.1437 ± 0.00042

0.0528 ± 0.00055

0.41 ± 0.005

0.27 ± 0.004

0.669

CTmin 20 °C

0.0973 ± 0.00094

0.1078 ± 0.00031

0.0505 ± 0.00051

0.47 ± 0.005

0.32 ± 0.004

0.302

CTmin 23 °C

0.0929 ± 0.00091

0.1131 ± 0.00033

0.0503 ± 0.00051

0.45 ± 0.005

0.31 ± 0.004

0.173

CTmin 26 °C

0.1485 ± 0.00142

0.1581 ± 0.00046

0.0821 ± 0.00082

0.48 ± 0.005

0.34 ± 0.004

0.172

CTmin 29 °C

0.1943 ± 0.00198

0.2703 ± 0.00083

0.1116 ± 0.00118

0.42 ± 0.006

0.29 ± 0.005

0.184

Slope

0.0017 ± 0.00001

0.0009 ± 0.000005

0.0009 ± 0.00001

0.65 ± 0.036

0.51 ± 0.041

0.519

  1. All variance components were significantly different from zero (Wald’s test).
Back to article page