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Genetics and consequences of crop domestication
1Agricultural Research Service, U.S. Department of Agriculture , 301 Curtis Hall, University of Missouri, Columbia, Missouri 65211, United States.
Journal of Agricultural and Food Chemistry
|May 31, 2013
Summary
Crop domestication reduced genetic diversity, impacting modern crop production. Studies in maize (Zea mays) reveal how this affects phenotypic variation and trait diversity.
Area of Science:
- Agricultural Science
- Genetics
- Evolutionary Biology
Background:
- Human manipulation of phenotypic variation during crop domestication over millennia.
- Domestication reduces genetic diversity, particularly in targeted genes, compared to wild ancestors.
Purpose of the Study:
- To investigate the impact of reduced genetic diversity on contemporary crop production.
- To explore the relationship between genetic and phenotypic diversity in wild and domesticated crops.
Main Methods:
- Utilizing genome-wide association mapping (GWAS).
- Analyzing large HapMap datasets.
- Leveraging extensive germplasm resources.
Main Results:
- Demonstrated the application of GWAS and large datasets in maize (Zea mays).
- Revealed insights into the link between genetic diversity and phenotypic variation.
- Highlighted the effects of domestication on trait variation.
Conclusions:
- Understanding genetic diversity is crucial for assessing domestication impacts.
- Maize (Zea mays) serves as a model for studying these relationships.
- Integrated genomic approaches advance discoveries in crop trait variation.
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