Within-family genomic selection in strawberry: Optimization of marker density, trial design, and training set composition.

Genomic selection is a widely used quantitative method of determining the genetic value of an individual from genomic information and phenotypic data. In this study, we used a large, multi-year training population of 3248 individuals from the University of Florida strawberry (Fragaria × ananassa Duchesne) breeding program. We coupled this training population with a test population of 1460 individuals derived from 20 biparental families.

Recombination and genetic variance among maize doubled haploids induced from F and F plants.

Inducing maize doubled haploids from F plants (DHF2) instead of F plants (DHF1) led to more recombination events. However, the best DHF2 lines did not outperform the best DHF1 lines. Maize (Zea mays L.