Quantitative Insights into the Genetic Mechanisms of Crop Heterosis.

ABSTRACT: Heterosis, the universal phenomenon in which F₁ hybrids exhibit superior performance compared to their parental lines, is widely exploited in modern agriculture for improving crop yield, yet its genetic mechanisms remain incompletely understood. The contributions of parental genomic sequence variants to heterosis have been extensively investigated. Recent advances in transcriptomics, proteomics, and metabolomics offer new quantitative perspectives on the molecular basis of crop heterosis. This review summarizes current evidence on inheritance patterns: additive, partially dominant, dominant, and overdominant effects. We highlight that the contributions of these effects to heterosis vary by genotypes, traits, tissues, populations, developmental stages, omics datasets, growth envi

SUBMITTER: Dan Z 

PROVIDER: S-EPMC12747548 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature