Genetic Diversity and Population Structure of West African Sweetpotato
Author Information
Author(s): Mahaman Mourtala Issa Zakari, Gouda Arnaud Comlan, Baina Dan-jimo, Maxwell Nwankwo Innocent Ifeanyi, Adje Charlotte O. A., Baragé Moussa, Happiness Oselebe Ogba
Primary Institution: National Institute of Agronomic Research of Niger
Hypothesis
The study aims to assess the genetic diversity and population structure of the West African sweetpotato collection using Diversity Arrays Technology through Genotyping by Sequencing.
Conclusion
The study revealed extensive polymorphism and variation within and between populations of sweetpotato accessions, highlighting the impact of migration on genetic diversity.
Supporting Evidence
- 29,523 DArTseq SNP markers were used to genotype 271 sweetpotato accessions.
- Genetic diversity analysis revealed an average polymorphic information content (PIC) value of 0.39.
- Population structure analysis divided the accessions into four populations.
- Most of the genetic diversity was explained by population structure at K = 4.
Takeaway
Researchers looked at sweetpotatoes from West Africa to see how different they are from each other. They found a lot of variety, which is good for breeding new types of sweetpotatoes.
Methodology
The study used 7,591 DArTseq-based SNP markers to genotype 271 sweetpotato accessions collected from various regions.
Limitations
The study may not cover all sweetpotato accessions in West Africa, and the findings are based on the specific markers used.
Participant Demographics
Sweetpotato accessions were collected from Niger, Nigeria, and Benin, including landraces, breeding lines, and improved varieties.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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