Table 1

Prediction accuracy of GEBV, correlation of GEBV with TBV, correlation of GEBV with genotypic value (g), regression coefficient of phenotype (y) on GEBV, regression coefficient of TBV on GEBV, and regression coefficient of genotypic value on GEBV.

Methods

Correlation of GEBV with

Regression coefficient on GEBV of


y*1

TBV

g

y

TBV

g

P-BLUP

0.545

0.410

0.538

1.156

1.003

1.005

G-BLUP

No Poly

0.746

0.610

0.753

1.006

0.949

0.895

Poly

0.737

0.597

0.752

0.961

0.898

0.863

BayesB, π = 0.75

No Poly

0.781

0.632

0.776

1.018

0.950

0.892

Poly

0.778

0.628

0.783

0.984

0.916

0.873

BayesB, π = 0.95

No Poly

0.788

0.640

0.787

1.023

0.960

0.901

Poly

0.784

0.634

0.793

0.983

0.916

0.875

BayesB, π = 0.99

No Poly

0.793

0.646

0.795

1.031

0.967

0.909

Poly

0.790

0.636

0.797

0.981

0.911

0.872

BayesCπ

No Poly

0.796

0.650

0.800

1.011

0.952

0.895

Poly

0.796

0.642

0.804

0.989

0.921

0.880

BayesCπ gen 52

No Poly

0.679

0.894

0.959

0.965


Results are based on training on the first three generations and validation on generation 4 using P-BLUP, G-BLUP, BayesB with different π's, and BayesCπ, and without (No Poly) and with (Poly) polygenic effects.

1Calculated as correlation of phenotype (y) with GEBV, divided by the square root of estimated heritability.

2Training on the first 4 generations and predicting generation 5.

Sun et al. BMC Proceedings 2011 5(Suppl 3):S13   doi:10.1186/1753-6561-5-S3-S13

Open Data