TABLE 1

Gene diversity (expected heterozygosity) and number of alleles per locus (± standard errors) averaged over microsatellite markers and replicates, and predicted gene diversities

Generation
Line01020303538
Gene diversity
N = 100EC0.55 ± 0.010.66 ± 0.040.59 ± 0.030.57 ± 0.000.49 ± 0.000.61 ± 0.04
0.550.54a ± 0.010.52a ± 0.010.51a ± 0.010.50a ± 0.010.49a ± 0.01
0.550.54b0.52b0.51b0.50b0.50b
NM0.56 ± 0.030.54 ± 0.040.44 ± 0.040.48 ± 0.020.42 ± 0.010.47 ± 0.03
0.560.53b0.50b0.48b0.46b0.46b
N = 20EC0.52 ± 0.030.49 ± 0.010.32 ± 0.070.37 ± 0.040.35 ± 0.030.32 ± 0.04
0.520.48a ± 0.030.42a ± 0.030.37a ± 0.030.34a ± 0.020.33a ± 0.02
0.520.46b0.40b0.35b0.33b0.32b
NM0.56 ± 0.020.39 ± 0.040.23 ± 0.050.29 ± 0.050.27 ± 0.030.26 ± 0.03
0.560.43b0.32b0.25b0.21b0.20b
Allelic diversity
N = 100EC4.88 ± 0.384.50 ± 0.253.50 ± 0.003.88 ± 0.133.25 ± 0.003.25 ± 0.25
NM5.00 ± 0.253.13 ± 0.383.00 ± 0.002.50 ± 0.252.38 ± 0.132.63 ± 0.13
N = 20EC3.75 ± 0.142.80 ± 0.092.05 ± 0.242.25 ± 0.212.55 ± 0.272.25 ± 0.24
NM3.55 ± 0.152.10 ± 0.151.70 ± 0.181.80 ± 0.091.80 ± 0.121.65 ± 0.06
  • Predicted gene diversities are in italics. N, population size; EC, equalization of contributions; NM, no management (free contributions).

  • a Prediction of the drop in gene diversity for EC lines using the inbreeding coefficients obtained from genealogies.

  • b Prediction of the drop in gene diversity using the expected effective population size for EC lines (2N – 2 for autosomal loci and 9N/4 for X-linked loci) and NM lines (N for autosomal loci and 3N/4 for X-linked loci).