Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
<i>Dioscorea alata</i> (L.), also referred to as water, winged, or greater yam, is one of the most economically important staple food crops in tropical and subtropical areas. In Côte d’Ivoire, it represents, along with other yam species, the largest food crop and significantly contribute...
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Plants |
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| Online Access: | https://www.mdpi.com/2223-7747/10/12/2562 |
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| author | Lassana Bakayoko Désiré N’Da Pokou Abou Bakari Kouassi Paterne A. Agre Amani Michel Kouakou Konan Evrard Brice Dibi Boni Nzue Jean M. Mondo Patrick Adebola Oluyemi T. Akintayo Asrat Asfaw Assanvo Simon Pierre N’Guetta |
| author_facet | Lassana Bakayoko Désiré N’Da Pokou Abou Bakari Kouassi Paterne A. Agre Amani Michel Kouakou Konan Evrard Brice Dibi Boni Nzue Jean M. Mondo Patrick Adebola Oluyemi T. Akintayo Asrat Asfaw Assanvo Simon Pierre N’Guetta |
| author_sort | Lassana Bakayoko |
| collection | DOAJ |
| description | <i>Dioscorea alata</i> (L.), also referred to as water, winged, or greater yam, is one of the most economically important staple food crops in tropical and subtropical areas. In Côte d’Ivoire, it represents, along with other yam species, the largest food crop and significantly contributes to food security. However, studies focusing on better understanding the structure and extent of genetic diversity among <i>D. alata</i> accessions, using molecular and phenotypic traits, are limited. This study was, therefore, conducted to assess the pattern of genetic variability in a set of 188 <i>D. alata</i> accessions from the National Agronomic Research Centre (CNRA) genebank using 11,722 SNP markers (generated by the Diversity Arrays Technology) and nine agronomic traits. Phylogenetic analyses using hierarchical clustering, admixture, kinship, and Discriminant analysis of principal component (DAPC) all assigned the accessions into four main clusters. Genetic diversity assessment using molecular-based SNP markers showed a high proportion of polymorphic SNPs (87.81%). The analysis of molecular variance (AMOVA) showed low molecular variability within genetic groups. In addition, the agronomic traits evaluated for two years in field conditions showed a high heritability and high variability among <i>D. alata</i> accessions. This study provides insights into the genetic diversity among accessions in the CNRA genebank and opens an avenue for sustainable resource management and the identification of promising parental clones for water yam breeding programs in Côte d’Ivoire. |
| first_indexed | 2024-03-10T03:17:44Z |
| format | Article |
| id | doaj.art-b3a3538ab56147fcb417134a3a3ba403 |
| institution | Directory Open Access Journal |
| issn | 2223-7747 |
| language | English |
| last_indexed | 2024-03-10T03:17:44Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Plants |
| spelling | doaj.art-b3a3538ab56147fcb417134a3a3ba4032023-11-23T10:09:59ZengMDPI AGPlants2223-77472021-11-011012256210.3390/plants10122562Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic TraitsLassana Bakayoko0Désiré N’Da Pokou1Abou Bakari Kouassi2Paterne A. Agre3Amani Michel Kouakou4Konan Evrard Brice Dibi5Boni Nzue6Jean M. Mondo7Patrick Adebola8Oluyemi T. Akintayo9Asrat Asfaw10Assanvo Simon Pierre N’Guetta11UFR Biosciences, Université Félix Houphouët Boigny, Abidjan 582, Côte d’IvoireLaboratoire Central de Biotechnologie (LCB), Centre National de Recherche Agronomique (CNRA), Abidjan 1740, Côte d’IvoireUFR Biosciences, Université Félix Houphouët Boigny, Abidjan 582, Côte d’IvoireInternational Institute of Tropical Agriculture (IITA), Ibadan 5320, NigeriaStation de Recherche sur les Cultures Vivrières (SRCV), Centre National de Recherche Agronomique (CNRA), Bouaké 633, Côte d’IvoireStation de Recherche sur les Cultures Vivrières (SRCV), Centre National de Recherche Agronomique (CNRA), Bouaké 633, Côte d’IvoireStation de Recherche sur les Cultures Vivrières (SRCV), Centre National de Recherche Agronomique (CNRA), Bouaké 633, Côte d’IvoireInternational Institute of Tropical Agriculture (IITA), Ibadan 5320, NigeriaInternational Institute of Tropical Agriculture (IITA), Abuja 901101, NigeriaÉcole Supérieure d’Agronomie, Université de Lomé, Lomé 1515, TogoInternational Institute of Tropical Agriculture (IITA), Ibadan 5320, NigeriaUFR Biosciences, Université Félix Houphouët Boigny, Abidjan 582, Côte d’Ivoire<i>Dioscorea alata</i> (L.), also referred to as water, winged, or greater yam, is one of the most economically important staple food crops in tropical and subtropical areas. In Côte d’Ivoire, it represents, along with other yam species, the largest food crop and significantly contributes to food security. However, studies focusing on better understanding the structure and extent of genetic diversity among <i>D. alata</i> accessions, using molecular and phenotypic traits, are limited. This study was, therefore, conducted to assess the pattern of genetic variability in a set of 188 <i>D. alata</i> accessions from the National Agronomic Research Centre (CNRA) genebank using 11,722 SNP markers (generated by the Diversity Arrays Technology) and nine agronomic traits. Phylogenetic analyses using hierarchical clustering, admixture, kinship, and Discriminant analysis of principal component (DAPC) all assigned the accessions into four main clusters. Genetic diversity assessment using molecular-based SNP markers showed a high proportion of polymorphic SNPs (87.81%). The analysis of molecular variance (AMOVA) showed low molecular variability within genetic groups. In addition, the agronomic traits evaluated for two years in field conditions showed a high heritability and high variability among <i>D. alata</i> accessions. This study provides insights into the genetic diversity among accessions in the CNRA genebank and opens an avenue for sustainable resource management and the identification of promising parental clones for water yam breeding programs in Côte d’Ivoire.https://www.mdpi.com/2223-7747/10/12/2562<i>Dioscorea alata</i>genetic diversitymolecular markersDArT-seqpopulation structureagronomic trait |
| spellingShingle | Lassana Bakayoko Désiré N’Da Pokou Abou Bakari Kouassi Paterne A. Agre Amani Michel Kouakou Konan Evrard Brice Dibi Boni Nzue Jean M. Mondo Patrick Adebola Oluyemi T. Akintayo Asrat Asfaw Assanvo Simon Pierre N’Guetta Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits Plants <i>Dioscorea alata</i> genetic diversity molecular markers DArT-seq population structure agronomic trait |
| title | Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits |
| title_full | Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits |
| title_fullStr | Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits |
| title_full_unstemmed | Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits |
| title_short | Diversity of Water Yam (<i>Dioscorea alata</i> L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits |
| title_sort | diversity of water yam i dioscorea alata i l accessions from cote d ivoire based on snp markers and agronomic traits |
| topic | <i>Dioscorea alata</i> genetic diversity molecular markers DArT-seq population structure agronomic trait |
| url | https://www.mdpi.com/2223-7747/10/12/2562 |
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