The maize roothairless3 gene and its impact on grain yield
Author Information
Author(s): Hochholdinger Frank, Wen Tsui-Jung, Zimmermann Roman, Chimot-Marolle Patricia, da Costa e Silva Oswaldo, Bruce Wesley, Lamkey Kendall R, Wienand Udo, Schnable Patrick S
Primary Institution: Center for Plant Molecular Biology, Eberhard-Karls-University Tuebingen
Hypothesis
The rth3 gene is required for root hair elongation and normal grain yield in maize.
Conclusion
The rth3 mutant shows significant reductions in grain yield due to impaired root hair elongation.
Supporting Evidence
- The rth3 mutant was isolated from Mutator transposon stocks and shows a stable phenotype.
- Field trials demonstrated yield reductions of 42%, 37%, and 19% in rth3 mutants compared to wild-type plants.
- Massively parallel signature sequencing revealed rth3 expression in various tissues, with the highest levels in primary roots.
Takeaway
This study found that a specific gene in maize helps roots grow hair-like structures, which are important for taking in water and nutrients. Without this gene, the plants produce less grain.
Methodology
The rth3 gene was cloned using a PCR-based approach, and its effects on root hair elongation and grain yield were assessed through replicated field trials.
Limitations
The study primarily focused on the rth3 gene and did not explore potential interactions with other genes affecting root hair development.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.01
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website