Clément Agbangla's research while affiliated with University of Abomey-Calavi and other places

Publications (155)

Article
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Background: African pangolins are currently experiencing unprecedented levels of harvesting, feeding both local demands and the illegal international trade. So far, the lack of knowledge on the population genetics of African pangolins has hampered any attempts at assessing their demographic status and tracing their trade at the local scale. We con...
Article
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Aims: The present study was carried out to access the salt tolerance level of nine amaranth (Amaranthus cruentus) mutant lines selected from Benin cultivar ‘Locale’ at young plants stage in comparison with the cultivar ‘Locale’ used as control. Study Design: The experiment was laid out as a Completely Randomized Design with three replications. Plac...
Article
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Genetic diversity studies provide important details on target trait availability and its variability, for the success of breeding programs. In this study, GBS approach was used to reveal a new structuration of genetic diversity and population structure of pigeonpea in Benin. We used a total of 688 high-quality Single Nucleotide Polymorphism markers...
Article
Proprotein convertase substilisin/kexin 9 (PCSK9) inhibitors (PCSK9i) revolutionised the lipid-lowering therapy. However, a risk of type 2 diabetes mellitus (T2DM) is evoked under PCSK9i therapy. In this review, we summarise the current knowledge on the link of PCSK9 with T2DM. A significant correlation was found between PCSK9 and insulin, homeosta...
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Sustainable conservation of crop wild relatives is one of the pathways to securing global food security amid climate change threats to biodiversity. However, their conservation is partly limited by spatio-temporal distribution knowledge gaps mostly because they are not morphologically charismatic species to attract conservation attention. Therefore...
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Sustainable conservation of crop wild relatives is one of the pathways to securing global food security amid climate change threats to biodiversity. However, their conservation is partly limited by spatio-temporal distribution knowledge gaps mostly because they are not morphologically charismatic species to attract conservation attention. Therefore...
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Socio-demographic factors are often responsible for the persistent neglect of orphan crops such as Kersting’s groundnut (Macrotyloma geocarpum) in sub-Saharan Africa.The objective of this study was to investigate the influence of socio-demographic factors on production of Kersting’s groundnut (KG), as a basis for informing policy and development ef...
Article
The main objective of this study is to investigate the patterns of genetic diversity and phylogenetic relationships within populations of Detarium microcarpum (Fabaceae) relative to different spatial conditions. Seventy-eight (78) accessions of D. microcarpum belonging to six populations (Phytogeographic districts) were sampled. In order to have ve...
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Aims: The aim of this study was to identify the cultivated rice varieties that were resistant to Xanthomonas oryzae pv. oryzae (Xoo) by molecular screening. Xanthomonas oryzae pv. oryzae (Xoo) was the causal agent of bacterial blight, in the department of Atacora in Benin. Place and Duration of Study: Laboratory of Molecular Biology and Bioinformat...
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The local cultivars of the Phaseolus genus present within the local communities constitute a considerable source of genes and consequently of genetic diversity which would lead to success of the varietal creation of beans. ¶Nevertheless, these resources suffer from a significant genetic erosion because of the climatic requirement but also of the di...
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There is increasing evidence in support of a decisive role played by the diet in the development of non-communicable diseases. The present study aimed to assess the effect of salt overfeeding on renal function and on the cardiovascular system in Wistar rats. Four groups of rats were exposed to diets with various salt levels, 0.8% for control, and 2...
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The different methods used for the control of An. gambiae s.l. have led to the deployment of several defensive weapons by these vectors. Indoor residual spraying (IRS) implemented annually in the northern part of the country, and the national distribution of long-lasting insecticide-treated nets (LLINs) carried out every 3 years are the main malari...
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Agricultural production activities usually occur in Benin with the use of a huge amount of insecticides including pyrethroids for pest control. It is therefore important to regularly monitor pyrethroid resistance intensity in Anopheles gambiae s.l., the main malaria vector. This study was conducted in cereal, cotton, rice growing, and urban market...
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Kersting's groundnut (Macrotyloma geo-carpum (Harms) Maréchal & Baudet) is an important source of protein and essential nutrients that contribute to food security in West Africa. However, the crop is still underexploited by the populations and under-researched by the scientific community. This study aimed to investigate the genetic diversity and po...
Preprint
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We conducted in the Dahomey Gap (DG) a pioneer study on the genetic tracing of the African pangolin trade. We sequenced and genotyped 189 white-bellied pangolins from 18 forests and 12 wildlife markets using one mitochondrial fragment and 20 microsatellites loci. Tree-based assignment procedure showed the ‘endemicity’ of the pangolin trade, as stri...
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Peanut (Arachis hypogaea L.) production in Benin is limited by several biotic and abiotic stresses. The objectives of this study were to document varietal trait preferences and peanut genetic diversity for breeding programs. A survey in the South and Center of Benin and an agro-morphological characterization was carried out. Results showed that far...
Preprint
Full-text available
The main objective of this study is to investigate the patterns of genetic diversity and phylogenetic relationships within populations of Detarium microcarpum (Fabaceae) relative to different spatial conditions. Seventy-eight (78) accessions of D. microcarpum belonging to six populations (Phytogeographic districts) were sampled. In order to have ve...
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The production of cucumber (Cucumis sativus L.) is hampered by several constraints that include pest attacks which negatively affect its production in quantity and quality. Our study aimed to promote the use of biopesticides to control the attack of Aphis gossypii Glover through an assessment of the efficacy of two biopesticides on the infestation...
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Rice yellow mottle virus (RYMV) is the most harmful virus that affects irrigated and lowland rice in Africa. The RBe24 isolate of the virus is the most pathogenic strain in Benin. A total of 79 genotypes including susceptible IR64 (Oryza sativa) and the resistant TOG5681 (O. glaberrima) as checks were screened for their reactions to RBe24 isolate o...
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The scarlet eggplant (Solanum aethiopicum L.) is an African traditional vegetable grown for its edibles leaves and fruits, which can contribute to food security in Republic of Benin. However, very little information is available on the genetic variability of this vegetable for varietal improvement purposes. Sixty accessions of scarlet eggplants col...
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The Africa Rice Center Gene Bank hold about 2,500 accessions of Oryza glaberrima. To understand well the genetic diversity in O. glaberrima and its wild species, the use of molecular tools is prominent. The sample consisted of 217 accessions of O. glaberrima, 46 of O. barthii and 7 of O. sativa (checks) was genotyped with 21 polymorphic microsatell...
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Background: Insecticide resistance is threatening the effectiveness of efforts to control malaria vectors in Benin. This study explores the levels and mechanisms of insecticide resistance in An. gambiae s.l. to pyrethroids. Methods: Larvae were collected from August 2017 to July 2018 in five communes in southern Benin (Adjohoun, Allada, Bohicon,...
Article
Knowledge gap on the reproductive biology of orphan crops is a major challenge to their cultivar development and genetic improvement. This study described the reproductive organs and phenology, assessed receptivity of stigma versus anther dehiscence, and examined pollen viability and germination in Kersting's groundnut. Experiments were conducted o...
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Ricinodendron heudelotii (Euphorbiaceae) is an oilseed plant with high socio-economic value. Unfortunately, the seed’s tegumentary dormancy causes low germination and severely limits its large-scale spread. Germination and juvenile growth of eleven provenances from Benin and Central African Republics were tested under four different pre-treatments...
Preprint
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Background: The African eggplant [Solanum aethiopicum (L.)] is an important orphan traditional vegetable cultivated in tropical regions for its edible fruits. In Benin republic, S. aethiopicum (L.) is mainly produced by rural farmers for food and for its uses in traditional medicine. Assessing the varietal diversity, the endogenous knowledge, the p...
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La résistance des vecteurs du paludisme aux insecticides utilisés dans la lutte anti vectorielle est un obstacle majeur pour les programmes nationaux de lutte contre le paludisme. La présente étude avait pour but d’évaluer la diversité génétique des populations de Anopheles gambiae et la résistance aux insecticides (mutation Kdr et Ace-1) en zone c...
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Pearl millet [Pennisetum glaucum (L.) R. Br.] is a food cereal of limited importance in Benin. The conservation and exploitation of these resources are important for the food security of the populations involved in its production. Understanding the structure of its genetic diversity and identification on a molecular basis is an important goal for t...
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Detarium microcarpum Guill. & Perr. is a priority food tree species in West Africa, but its use pattern and conservation is little known across different sociocultural areas of Benin. In this study, we analyse the determinants of D. microcarpum traditional uses pattern and how these determinants influence the species’ conservation in Benin. Thus, 7...
Preprint
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Kersting’s groundnut is an important source of protein and essential nutrients that contribute to food security in West Africa. However, the crop is still underexploited by the populations and under-researched by the scientific community. This study aimed to investigate the genetic diversity and population structure of 217 Kersting’s groundnut acce...
Preprint
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Background: Antimicrobial resistance is a real public health problem. All over the world, it has a considerable impact in hospitals. The present study aims to analyze the presence of resistance genes and bacterial ecology in two hospitals in Benin. Methods: To do this, 146 environmental and catheter samples were collected at the University Hospital...
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Pigeonpea (Cajanus cajan L. Millspaugh) is a neglected and under-utilized crop consumed in several regions of word. In order to assess performance of pigeonpea landraces grown in Benin for useful breeding programs, 50 accessions were collected from 39 villages. These accessions were characterized by using 12 qualitative and 11 quantitative traits....
Article
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Pigeonpea (Cajanus cajan L. Millspaugh) is a neglected and under-utilized crop consumed in several regions of word. In order to assess performance of pigeonpea landraces grown in Benin for useful breeding programs, 50 accessions were collected from 39 villages. These accessions were characterized by using 12 qualitative and 11 quantitative traits....
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Food and nutritional insecurity constitute a main challenge in most Sub-Sahara African countries. Efforts to provide diets with sufficient nutrients such as proteins, carbohydrates, vitamins and essential minerals should include the introduction of new vegetable and legume crops. Vegetable soybean “edamame”, is a nutritious vegetable legume well kn...
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Genetic diversity in a population is a prerequisite for implementing genetic selection. The aim of the study was to assess the genetic diversity, the gene flow and phylogenetic relationships among Borgou and White Fulani cattle breeds in Benin using the β-Lactoglobulin ( MBLG), α-Lactalbumin (LALBA), αS1-Casein (CSN1S1 ) and κ-Casein (CSN3) genetic...
Preprint
Background: Pigeonpea is a multipurpose food legume that contributes to food security in Benin. However, its production declined and some landraces are being threatened with disappearance. For establishment of conservation and breeding programs previous ethnobotanical surveys on pigeonpea were done in Benin but restricted to south and central regio...
Preprint
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Background: Pigeonpea is a multipurpose food legume crop that contributes to food security in the Republic of Benin. For the establishment of conservation and breeding programs, previous ethnobotanical surveys on pigeonpea were done in Benin but restricted to south and central regions. In previous years, pigeonpea landraces were introduced in north...
Preprint
Background: Pigeonpea is a multipurpose food legume that contributes to food security in Benin. However, its production declined and some landraces are being threatened to disappear. For establishment of conservation and breeding programs previous ethnobotanical surveys on pigeonpea were done in Benin but restricted to south and central regions. Kn...
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Background: Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency is the most common enzymopathy. It induces haemolytic crises with hyperbilirubinemia in newborns and a consequent anemia. Objective: In this study, we aimed to assess if anemia markers are affected in G6PD deficient newborn in the absence of oxidative attack. Methods: This is a cross-s...
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Introduction - The narrow knowledge of the genetic variability in cultivated pineapple in the Republic of Benin and in other West African countries limits its efficient use and its expansion in the international market; it also hinders the efficient development of pineapple while the crop is listed among the top three priority fruit species to be p...
Preprint
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In Benin, most of the spices used for food, medicine and ceremony are gathered from the wild as little attempt has been made so far for their domestication and cultivation. Consequently, many wild spices are prone to overexploitation and threatened by habitat loss. Also, little information is available regarding their occurrence areas and the facto...
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Raffias' species are used in handcrafts, constructions, food processing etc. But in Benin, any quantitative ethnobotanical study was not evaluated for their use and socioeconomic impact of uses on average income. This study investigated the importance of use of raffias' species and the impact of socioeconomic characteristics of informants on the ho...
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Detarium microcarpum (Caesalpiniaceae) is a priority, multipurpose, and indigenous food tree species in West Africa. However, data related to its efficient conservation and sustainable use, through changing ecological environments, are still lacking. Thus, species occurrence records were combined with climatic and soil data in Maximum Entropy (Maxe...
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Borassus aethiopum Mart. is a multipurpose palm native to mainland Africa. Fruits and hypocotyls are the most exploited parts which collection/harvest threats the species. As a pre-requisite for its domestication, this study assessed the (1) environmental-induced diversity in morphological traits of fruits and (2) differences in growth and weight o...
Preprint
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Background: In Benin, the diagnosis of G6PD deficiency is based on the biochemical test performed by the quantitative spectrophotometry assay of the enzymatic activity. We used the results of the molecular gene test to verify the reliability of the biochemical diagnostic test. The distribution of genes polymorphism associated with the G6PD deficien...
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Ce travail porte sur les haricots cultivés du genre Phaseolus et a pour objectif global d'inventorier les différentes espèces du genre cultivées au Bénin. Plus spécifiquement, il s'est agi d'évaluer la relation phylogénétique entre les espèces cultivées du genre Phaseolus au Centre et Sud du Bénin. Vingt et une (21) accessions collectées et caracté...
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Spices have always been used for their flavor-enhancement characteristics and for their medicinal properties. In Benin, scientific research on spices is scarce, despite their importance in the local population’s daily needs. This study investigated the diversity of wild spices and documented the associated traditional knowledge that can be used for...
Poster
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In recent decades, wild spices have been increasingly studied for their flavor-enhancement characteristics and their medicinal properties. In Benin, many spices used daily for medicine, food and ceremony are gathered from the wild. But so far, little attempt has been made for their domestication and cultivation. Consequently, many wild spices are b...
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In Benin, yam production continues to face numerous production constraints, including yield and quality reduction by Scutellonema bradys. Implementation of efficient management techniques against this pest requires an improved understanding, including at the molecular level, of the pest. The current study aimed at identifying the Scutellonema spp....