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

Plants ◽  
2021 ◽  
Vol 10 (12) ◽  
pp. 2562
Author(s):  
Lassana Bakayoko ◽  
Désiré N’Da Pokou ◽  
Abou Bakari Kouassi ◽  
Paterne A. Agre ◽  
Amani Michel Kouakou ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Agronomic Traits ◽  
Snp Markers ◽  
Research Centre ◽  
Dioscorea Alata ◽  
Cote D’Ivoire ◽  
Côte D'ivoire ◽  
Water Yam

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.

scholarly journals Genetic diversity of Plasmodium falciparum among school-aged children from the Man region, western Côte d’Ivoire

2013 ◽  
Vol 12 (1) ◽  
pp. 419 ◽  
Author(s):  
Sarah E Mara ◽  
Kigbafori D Silué ◽  
Giovanna Raso ◽  
Simon P N’Guetta ◽  
Eliézer K N’Goran ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Plasmodium Falciparum ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Cote D’Ivoire ◽  
School Aged Children ◽  
Côte D'ivoire

scholarly journals Etat Des Lieux Et Gestion Des Semences Des Principales Céréales Cultivées Au Nord De La Côte d’Ivoire

2017 ◽  
Vol 13 (3) ◽  
pp. 112
Author(s):  
Kouablan Edmond Koffi ◽  
Saraka Didier Martial Yao ◽  
Nafan Diarrassouba ◽  
Laopé Ambroise Casimir Siene
Keyword(s):  
Genetic Diversity ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Regional Scale ◽  
Distribution Channel ◽  
Formal System ◽  
Cote D’Ivoire ◽  
Seed Supply ◽  
Côte D'ivoire ◽  
Seed System

The survey aims at assessing current managing status of organizations involves in the conservation of local genetic diversity of rice, maize, sorghum and pearl millet in seedbanks located in northern Côte d’Ivoire. An investigation was conducted with 100 respondents in charge of cereal seedbanks managing from Ferkessedougou and Ouangolodougou areas. The results at regional scale revealed two co-existing informal and formal systems for seedbanks management in these areas. The farmers’ seedbanks system or informal system was the main source of cereal seed supply for farmers and more important than the national or formal seedbank system. Only, farmers’ seedbanks of two crops, rice and maize were found in visited localities. The management of these farmers’ seedbanks was enabled by associations or cooperatives gathering more men (78.27%) than women (21.73%). Ninety percent (90%) of respondents were identified as saving 1 to 3 traditional varieties of cereal in these seedbanks managed by farmers in the studied region. The reveled difficulties in the farmers’ seedbanks management appeared mainly as informally organized seed system that must be a complementary approach to formal system or national seed system for genetic diversity preservation of local cereal varieties and also as a distribution channel of improved cereal varieties.

Enzymatic polymorphism of genetic diversity in cassava (Manihot esculenta Crantz) accessions in Côte d’Ivoire

2015 ◽  
Vol 2 (1) ◽  
pp. 009-017
Author(s):  
Kouablan Edmond Koffi ◽  
◽  
Kouassi Guy Brou ◽  
Kan Modeste Koussi ◽  
Ahou-yah Gisèle Koua ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Cote D'ivoire ◽  
Manihot Esculenta ◽  
Côte D’Ivoire ◽  
Manihot Esculenta Crantz ◽  
Cote D’Ivoire ◽  
Côte D'ivoire

scholarly journals Genetic diversity of exotic and local eggplants (Solanum spp.) cultivated in Côte d’Ivoire based on ISSR markers

2020 ◽  
Vol 21 (8) ◽  
Author(s):  
N'Guessan Olivier Konan ◽  
MARIE ANGE AKAFFOU ◽  
LÉONARD KOUADIO ◽  
DOFFOU SÉLASTIQUE AKAFFOU ◽  
GUY MERGEAI
Keyword(s):  
Genetic Diversity ◽  
Cote D'ivoire ◽  
Côte D’Ivoire ◽  
Genetic Erosion ◽  
Inter Simple Sequence Repeat ◽  
Issr Markers ◽  
Cote D’Ivoire ◽  
Local Cultivars ◽  
Côte D'ivoire ◽  
Solanum Spp

Abstract. Konan NO, Akaffou MA, Kouadio L, Akaffou DS, Mergeai G. 2020. Genetic diversity of exotic and local eggplants (Solanum spp.) cultivated in Côte d’Ivoire based on ISSR markers. Biodiversitas 21: 3651-3658. Eggplants are important vegetables in Côte d'Ivoire. Despite an increase in the cultivation of exotic genotypes and their progressive dominance over local cultivars, which could represent a threat of genetic erosion, there are not enough molecular data available on the genetic diversity of the eggplants currently cultivated in this country. This study is a contribution to the knowledge of the genetic diversity of the current eggplant cultivars grown in Côte d’Ivoire. It aimed to assess the genetic variation of nine exotic and local eggplants commonly cultivated in Côte d'Ivoire, using five inter-simple sequence repeat (ISSR) primers. The results revealed for the exotic cultivars 42 ISSR loci of which 31 were polymorphic (73.81 %), and for local cultivars 51 loci of which 49 (96.08%) were polymorphic. The Nei’s genetic diversity and Shannon’s information index of local cultivars (He = 0.3333 and I = 0.4863) were higher than those of exotic cultivars (He = 0.2000 and I = 0.2971). The Gst value and the AMOVA analysis found more than 70% of the total genetic diversity within the groups. The Jaccard’s dissimilarity coefficients between the cultivars, ranged from 0.324 to 0.966 with an average of 0.741. The clustering of genotypes with the neighbor-joining unrooted tree and PCoA analysis differentiated three main clusters with exotic cultivars grouped in cluster I and local cultivars in cluster II and III. In view of these results, the local eggplants had higher genetic diversity and constitute an interesting germplasm which needs to be conserved for potential breeding programs.

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