Accuracy of Selection in Early Generations of Field Pea Breeding Increases by Exploiting the Information Contained in Correlated Traits.

ABSTRACT: Accuracy of predicted breeding values (PBV) for low heritability traits may be increased in early generations by exploiting the information available in correlated traits. We compared the accuracy of PBV for 10 correlated traits with low to medium narrow-sense heritability (h2) in a genetically diverse field pea (Pisum sativum L.) population after univariate or multivariate linear mixed model (MLMM) analysis with pedigree information. In the contra-season, we crossed and selfed S₁ parent plants, and in the main season we evaluated spaced plants of S₀ cross progeny and S₂₊ (S₂ or higher) self progeny of parent plants for the 10 traits. Stem strength traits included stem buckling (SB) (h2 = 0.05), compressed stem thickness (CST) (h2 = 0.12),

SUBMITTER: Castro-Urrea FA 

PROVIDER: S-EPMC10005560 | biostudies-literature | 2023 Mar

REPOSITORIES: biostudies-literature