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Integrated GWAS and Transcriptome Analysis to Identify Genes Underlying Plant Height and Ear Height Plasticity in
Liang Tu1, Pengfei Liu1, Angui Wang1
1Institute of Upland Food Crops, Guizhou Academy of Agricultural Sciences, Guiyang 550006, China.
Integrating tropical and temperate maize germplasm enhances genetic innovation. This study identified 77 loci and 9 candidate genes for plant and ear height plasticity, aiding crop improvement and food security.
Area of Science:
- Genetics and Plant Breeding
- Agricultural Science
Background:
- Maize germplasm integration is key for genetic innovation.
- Phenotypic plasticity indicates successful integration of diverse maize types.
Purpose of the Study:
- Investigate genetic variation and plasticity in plant height (PH) and ear height (EH).
- Identify genetic loci and candidate genes controlling PH and EH plasticity in maize.
Main Methods:
- Analyzed 155 maize inbred lines across 5 environments.
- Conducted genome-wide association studies (GWAS).
- Performed transcriptome profiling of selected maize lines.
Main Results:
- Identified 77 loci associated with phenotypic plasticity.
- Discovered 9 candidate genes regulating plant and ear height plasticity.
- Specific genes like Zm00001d043110 were highlighted.
Conclusions:
- Results offer genetic resources for maize germplasm improvement.
- Identified genes can aid in developing elite maize lines with stable traits.
- Findings contribute to advancing maize breeding and global food security.
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