Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables
Sweetpotato is an important global crop of food and nutritional significance and rural income generation, especially in Africa. Although, the crop is well adapted to diverse agroecological conditions, its genetic and phenotypic diversity is yet to be well explored. In this study, the diversity of 72...
| Autores principales: | , , , , , |
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| Formato: | Journal Article |
| Lenguaje: | Inglés |
| Publicado: |
2025
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| Acceso en línea: | https://hdl.handle.net/10568/178475 |
| _version_ | 1855535330141143040 |
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| author | Abed, J.N. Ibitoye, D.O. Afuape, S.O. Olasanmi, B. Mushoriwa, H. Agre, A.P. |
| author_browse | Abed, J.N. Afuape, S.O. Agre, A.P. Ibitoye, D.O. Mushoriwa, H. Olasanmi, B. |
| author_facet | Abed, J.N. Ibitoye, D.O. Afuape, S.O. Olasanmi, B. Mushoriwa, H. Agre, A.P. |
| author_sort | Abed, J.N. |
| collection | Repository of Agricultural Research Outputs (CGSpace) |
| description | Sweetpotato is an important global crop of food and nutritional significance and rural income generation, especially in Africa. Although, the crop is well adapted to diverse agroecological conditions, its genetic and phenotypic diversity is yet to be well explored. In this study, the diversity of 72 sweetpotato genotypes were assessed using phenotypic traits and single nucleotide polymorphism (SNP) markers. Genotypes differed significantly for phenotypic traits (P ≤ 0.001) such as number of leaf lobes and vine internode length. Storage root weight had strong positive correlation to commercial root yield (r > 0.80). Principal component analysis showed that the first seven components with eigenvalues > 1 explained 75.68% of the total variation among the sweetpotato genotypes. Cluster analysis grouped the genotypes into four major clusters with cluster I exhibiting the highest genetic diversity. Fifteen genotypes were identified as top-ranking using the Multi Trait Genotype Ideotype Distance Index (MGIDI). Analysis of SNP markers revealed observed heterozygosity to be between 0.00 and 0.85 and expected heterozygosity between 0.09 and 0.50. The Bayesian Information Criterion (BIC) identified four genetic clusters with cluster 1 having the largest number of genotypes. Results from both phenotypic and genotypic evaluations were complementary and facilitated the identification of superior sweetpotato genotypes with potential for breeding improvement. |
| format | Journal Article |
| id | CGSpace178475 |
| institution | CGIAR Consortium |
| language | Inglés |
| publishDate | 2025 |
| publishDateRange | 2025 |
| publishDateSort | 2025 |
| record_format | dspace |
| spelling | CGSpace1784752025-12-08T10:11:39Z Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables Abed, J.N. Ibitoye, D.O. Afuape, S.O. Olasanmi, B. Mushoriwa, H. Agre, A.P. genetic diversity phenotypes single nucleotide polymorphisms genetic markers sweet potatoes Sweetpotato is an important global crop of food and nutritional significance and rural income generation, especially in Africa. Although, the crop is well adapted to diverse agroecological conditions, its genetic and phenotypic diversity is yet to be well explored. In this study, the diversity of 72 sweetpotato genotypes were assessed using phenotypic traits and single nucleotide polymorphism (SNP) markers. Genotypes differed significantly for phenotypic traits (P ≤ 0.001) such as number of leaf lobes and vine internode length. Storage root weight had strong positive correlation to commercial root yield (r > 0.80). Principal component analysis showed that the first seven components with eigenvalues > 1 explained 75.68% of the total variation among the sweetpotato genotypes. Cluster analysis grouped the genotypes into four major clusters with cluster I exhibiting the highest genetic diversity. Fifteen genotypes were identified as top-ranking using the Multi Trait Genotype Ideotype Distance Index (MGIDI). Analysis of SNP markers revealed observed heterozygosity to be between 0.00 and 0.85 and expected heterozygosity between 0.09 and 0.50. The Bayesian Information Criterion (BIC) identified four genetic clusters with cluster 1 having the largest number of genotypes. Results from both phenotypic and genotypic evaluations were complementary and facilitated the identification of superior sweetpotato genotypes with potential for breeding improvement. 2025 2025-12-03T12:50:12Z 2025-12-03T12:50:12Z Journal Article https://hdl.handle.net/10568/178475 en Open Access application/pdf Abed, J.N., Ibitoye, D.O., Afuape, S.O., Olasanmi, B., Mushoriwa, H. & Agre, A.P. (2025). Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using single-nucleotide polymorphism (SNP) markers and agronomic variables. Scientific Reports, 15(1): 38295, 1-13. |
| spellingShingle | genetic diversity phenotypes single nucleotide polymorphisms genetic markers sweet potatoes Abed, J.N. Ibitoye, D.O. Afuape, S.O. Olasanmi, B. Mushoriwa, H. Agre, A.P. Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables |
| title | Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables |
| title_full | Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables |
| title_fullStr | Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables |
| title_full_unstemmed | Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables |
| title_short | Assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism (SNP) markers and agronomic variables |
| title_sort | assessment of genetic diversity and phenotypic trait profiles among sweetpotato using singlenucleotide polymorphism snp markers and agronomic variables |
| topic | genetic diversity phenotypes single nucleotide polymorphisms genetic markers sweet potatoes |
| url | https://hdl.handle.net/10568/178475 |
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