Quantitative Traits of Interest in Apple Breeding and Their Implications for Selection.

ABSTRACT: Apple breeding is a laborious and long-lasting process that requires qualified resources, land, time, and funds. In this study, more than 5000 F₁ apple hybrids from direct and testcrosses were analyzed. The results revealed how the phenotypic expression of the main quantitative traits of interest assessed in five half-sib families was controlled by the additive genetic effects and by non-additive effects of dominance and epistasis. The statistical number of hybrids required to ensure efficient selection increased exponentially with the number of desirable traits. The minimum number of progenies required to obtain a hybrid with associated quantitative traits of agronomic interest was highly variable. For two independent traits essential in selection (fruit size and quality), but

SUBMITTER: Sestras RE 

PROVIDER: S-EPMC9964287 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature