Regulation of heterosis-associated gene expression complementation in maize hybrids
Here we show that dominance of SPE genes influences the number of active genes in hybrids, while heterozygosity is instrumental for the regulation of these genes. This finding supports the notion that the genetic constitution of distant regulatory elements is instrumental for the activity of heterosis-associated genes. In summary, our results connect genetic variation at regulatory loci and the degree of heterozygosity with phenotypic variation of heterosis via SPE complementation.
Authors
- Marion Pitz (ORCID: https://orcid.org/0000-0003-2821-3203)
- Frank Hochholdinger (ORCID: https://orcid.org/0000-0002-5155-0884)
- Annaliese S. Mason (ORCID: https://orcid.org/0000-0003-2701-7964)
- Hans‐Peter Piepho (ORCID: https://orcid.org/0000-0001-7813-2992)
- Heiko Schoof (ORCID: https://orcid.org/0000-0002-1527-3752)
- Jutta A. Baldauf (ORCID: https://orcid.org/0000-0002-7286-0558)
- Guoliang Li (ORCID: https://orcid.org/0000-0002-1190-9725)
- Peng Yu (ORCID: https://orcid.org/0000-0003-1670-8428)
Institutions
- University of Hohenheim (DE)
- University of Bonn (DE)
- Leibniz-Institut für Pflanzengenetik und Kulturpflanzenforschung (IPK) (DE)
- Technical University of Munich (DE)
Publication Details
- Journal
- Genome biology
- Published
- 2025-09-22
- DOI
- https://doi.org/10.1186/s13059-025-03768-3
- Citations
- 1
- Primary Topic
- Genetic Mapping and Diversity in Plants and Animals
- Type
- article
- Field-Weighted Citation Impact
- 1.82
Funders
- Deutsche Forschungsgemeinschaft
- Rheinische Friedrich-Wilhelms-Universität Bonn