Evaluation of genetic variability among "Early Mature" Juglans regia using microsatellite markers and morphological traits.

ABSTRACT: Limiting the juvenile phase and reducing tree size are the two main challenges for breeders to improve most fruit crops. Early maturation and dwarf cultivars have been reported for many fruit species. "Early mature" and low vigor walnut genotypes were found among seedlings of Persian walnut. Nine microsatellite markers were used to evaluate genetic diversity among "Early Mature" Persian walnut accessions and provide a comparison with "normal growth" accessions. Six maturation related characteristics were also measured in "Early Mature" samples. Phenotypic traits and diversity indices showed relatively high levels of genetic diversity in "Early Mature" seedlings and indicated high differentiation between individuals. Seedling height, the most diverse phenotypic trait, has an important role

SUBMITTER: Ebrahimi A 

PROVIDER: S-EPMC5660874 | biostudies-literature | 2017

REPOSITORIES: biostudies-literature