Tracking Corn Smut Populations Through Maize Domestication
Author Information
Author(s): Munkacsi Andrew B, Stoxen Sam, May Georgiana
Primary Institution: University of Minnesota
Hypothesis
Did the domestication of maize significantly impact the genetic variation of Ustilago maydis populations?
Conclusion
The domestication of maize and its cultivation across the Americas had a significant impact on the evolution and genetic structure of Ustilago maydis populations.
Supporting Evidence
- Five major U. maydis populations were identified across the Americas.
- Genetic diversity in U. maydis populations was similar in Mexico and descendent populations.
- Evidence of population bottlenecks and expansions was found in U. maydis populations.
Takeaway
This study shows that as people started farming maize, the corn smut fungus changed a lot too, showing how closely they are connected.
Methodology
The study analyzed multilocus genotypes of 1088 U. maydis individuals from various maize and teosinte populations using 10 SSR markers.
Potential Biases
Potential biases in sampling locations and genetic diversity assessments.
Limitations
The study may not account for all environmental factors affecting U. maydis populations.
Participant Demographics
Samples were collected from maize and teosinte populations across Mexico, South America, and the United States.
Statistical Information
P-Value
p<0.05
Confidence Interval
95% CI
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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