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Table 5 Intra-population predictive ability (PA) for pea grain yield, onset of flowering, lodging susceptibility and individual seed weight averaged across three environments and winter plant survival in one environment, for different Bayesian Lasso model training and account of population structure. Values averaged across two (lodging susceptibility) or three (other traits) RIL populations

From: Pea genomic selection for Italian environments

Trait

Traininga

Structureb

PA

Grain yield

Single

No

0.452

All

No

0.476

All

Yes

0.474

Onset of flowering

Single

No

0.710

All

No

0.747

All

Yes

0.749

Lodging susceptibility

Single

No

0.385

All

No

0.404

All

Yes

0.411

Individual seed weight

Single

No

0.695

All

No

0.696

All

Yes

0.700

Winter plant survival

Single

No

0.561

All

No

0.557

All

Yes

0.585

  1. a Single = model trained on the specific population; all = model trained on all populations joined in a single data set. Fifty repetitions of 10-fold stratified cross-validation per individual analysis
  2. b No = no structure information; yes = structure information as RIL population fixed factor