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Table 1 Impact of mating schemes on selection parameters when ΔC = 1% and Nmax = 100

From: Optimization of selection contribution and mate allocations in monoecious tree breeding populations

 

h2

F7

G7

∑r2/4

ΔVA

Nsel

Ncro

Nful

α 7

RM

0.25

0.0589

6.65

0.00587

-5.0

69.1

94.3

53.1

-0.000995

PAM

0.25

0.0775

6.61

0.00599

3.2

68.1

87.9

57.0

0.0223

PAMCM

0.25

0.0780

6.36

0.00611

-3.5

67.8

86.7

57.8

0.0249

MCM1

0.25

0.0379

6.58

0.00589

-6.3

68.6

89.9

55.8

-0.0228

MCM2

0.25

0.0396

6.56

0.00579

-10.8

70.3

98.6

50.7

-0.0218

MCM3

0.25

0.0416

6.85

0.00585

-9.4

70.9

100.0

50.0

-0.0191

MCM4

0.25

0.0527

6.69

0.00600

-0.6

70.4

100

50

-0.00731

RM

0.05

0.0613

5.62

0.00631

-7.0

77.6

96.3

51.9

0.00128

PAM

0.05

0.0879

5.56

0.00660

3.7

76.2

91.4

54.8

0.0345

PAMCM

0.05

0.0871

5.48

0.00668

9.3

75.3

90.1

55.6

0.0361

MCM1

0.05

0.0389

5.72

0.00620

-4.0

76.1

92.8

53.9

-0.0228

MCM2

0.05

0.0399

6.01

0.00629

-4.7

78.3

98.9

50.5

-0.0223

MCM3

0.05

0.0418

5.91

0.00623

-4.9

78.3

100.0

50.0

-0.0198

MCM4

0.05

0.0536

5.81

0.00637

0.2

78.4

100

50

-0.00723

  1. Investigated parameters were: accumulated inbreeding (F7), accumulated genetic merit (G7), sum of squared long term genetic contributions (∑r2/4), difference in additive genetic variance component as a percentage (ΔVA), average number of selected trees per generation (Nsel), average number of crosses per generation (Ncro), average number of full-sibs/family in each generation (Nful), amount of deviation from Hardy-Weinberg equilibrium (α7) at generation seven. Standard errors ranged between 0.0001 and 0.0016 for F7, 0.08 and 0.09 for G7, 0.00004 and 0.00024 for ∑r2/4.