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Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits

Dioscorea alata (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....

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Autores principales: Bakayoko, Lassana, Pokou, Désiré N’Da, Kouassi, Abou Bakari, Agre, Paterne A., Kouakou, Amani Michel, Dibi, Konan Evrard Brice, Nzue, Boni, Mondo, Jean M., Adebola, Patrick, Akintayo, Oluyemi T., Asfaw, Asrat, N’Guetta, Assanvo Simon Pierre
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8705775/
https://www.ncbi.nlm.nih.gov/pubmed/34961033
http://dx.doi.org/10.3390/plants10122562
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author Bakayoko, Lassana
Pokou, Désiré N’Da
Kouassi, Abou Bakari
Agre, Paterne A.
Kouakou, Amani Michel
Dibi, Konan Evrard Brice
Nzue, Boni
Mondo, Jean M.
Adebola, Patrick
Akintayo, Oluyemi T.
Asfaw, Asrat
N’Guetta, Assanvo Simon Pierre
author_facet Bakayoko, Lassana
Pokou, Désiré N’Da
Kouassi, Abou Bakari
Agre, Paterne A.
Kouakou, Amani Michel
Dibi, Konan Evrard Brice
Nzue, Boni
Mondo, Jean M.
Adebola, Patrick
Akintayo, Oluyemi T.
Asfaw, Asrat
N’Guetta, Assanvo Simon Pierre
author_sort Bakayoko, Lassana
collection PubMed
description Dioscorea alata (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 D. alata 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 D. alata 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 D. alata 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.
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spelling pubmed-87057752021-12-25 Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits Bakayoko, Lassana Pokou, Désiré N’Da Kouassi, Abou Bakari Agre, Paterne A. Kouakou, Amani Michel Dibi, Konan Evrard Brice Nzue, Boni Mondo, Jean M. Adebola, Patrick Akintayo, Oluyemi T. Asfaw, Asrat N’Guetta, Assanvo Simon Pierre Plants (Basel) Article Dioscorea alata (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 D. alata 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 D. alata 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 D. alata 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. MDPI 2021-11-24 /pmc/articles/PMC8705775/ /pubmed/34961033 http://dx.doi.org/10.3390/plants10122562 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Bakayoko, Lassana
Pokou, Désiré N’Da
Kouassi, Abou Bakari
Agre, Paterne A.
Kouakou, Amani Michel
Dibi, Konan Evrard Brice
Nzue, Boni
Mondo, Jean M.
Adebola, Patrick
Akintayo, Oluyemi T.
Asfaw, Asrat
N’Guetta, Assanvo Simon Pierre
Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
title Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
title_full Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
title_fullStr Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
title_full_unstemmed Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
title_short Diversity of Water Yam (Dioscorea alata L.) Accessions from Côte d’Ivoire Based on SNP Markers and Agronomic Traits
title_sort diversity of water yam (dioscorea alata l.) accessions from côte d’ivoire based on snp markers and agronomic traits
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8705775/
https://www.ncbi.nlm.nih.gov/pubmed/34961033
http://dx.doi.org/10.3390/plants10122562
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