Hybridity has a greater effect than paternal genome dosage on heterosis in sugar beet (Beta vulgaris).

ABSTRACT: BACKGROUND:The phenomenon of heterosis is critical to plant breeding and agricultural productivity. Heterosis occurs when F1 hybrid offspring display quantitative improvements in traits to levels that do not occur in the parents. Increasing the genome dosage (i.e. ploidy level) of F1 offspring can contribute to heterosis effects. Sugar beet (Beta vulgaris) provides a model for investigating the relative effects of genetic hybridity and genome dosage on heterosis. Sugar beet lines of different ploidy levels were crossed to generate diploid and triploid F1 offspring to investigate the effect of; (1) paternal genome dosage increase on F1 heterosis, and; (2) homozygous versus heterozygous tetraploid male parents on F1 triploid heterosis. A range of traits of agronomic and commercial importance

SUBMITTER: Hallahan BF 

PROVIDER: S-EPMC6003118 | biostudies-literature | 2018 Jun

REPOSITORIES: biostudies-literature