Predicting segregation of multiple fruit-quality traits by using accumulated phenotypic records in citrus breeding.

ABSTRACT: In the breeding of citrus (Citrus spp.), suitable fruit quality is essential for consumer acceptance of new cultivars. To identify parental combinations producing F1 progeny with fruit-quality traits exceeding certain selection criteria, we developed a simple and practical method for predicting multiple-trait segregation in an F1 progeny population. This method uses breeding values of parental genotypes and an additive genetic (co)variance matrix calculated by the best linear unbiased prediction method to construct a model for trait segregation in F1 progeny. To confirm the validity of our proposed method, we calculated the breeding values and additive genetic (co)variances based on phenotypic records on nine fruit-quality traits in 2122 genotypes, and constructed a trait segregation model

SUBMITTER: Imai A 

PROVIDER: S-EPMC6095598 | biostudies-literature | 2018

REPOSITORIES: biostudies-literature