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IS1500001 | H110--NDI | Article scientifique | UNIVAL | Section Périodiques | Exclu du prêt |
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Journal of Animal Science Advances, 2012, 2(7). Genetic Distribution of the Cowpea (Vigna Unguiculata (L.) Walp) Bruchid (Callosobruchus Maculatus F., Coleoptera, Bruchidae) Populations in Different Agro-Ecological Areas of West Africa [texte imprimé] / Assane Ndong, Auteur ; Cheikh Thiaw, Auteur ; Toffene Diome, Auteur . - Original Article . - 2012 . - pp. 616-630 : tabl., fig. ISSN : ISSN: 2251-7219 www.grjournals.com Langues : Anglais ( eng) Catégories : | PROTECTION DES PLANTES ET DES PRODUITS ENTREPOSES
| Mots-clés : | Vigna Unguiculata, Callosobruchus Maculatus, Zone Agro-Ecologique, 28S, Cytochrome B, Haplotype, Haplogroupe, Afrique de l'Ouest | Index. décimale : | H800-PROTECTION DES PRODUITS ENTREPOSES | Résumé : | Cowpea [(Vigna unguiculata L.) Walp. (Fabaceae)] is the most important food legume grown throughout West Africa. The seeds of this legume protein source are the least expensive for most African populations. However, cowpea production is severely limited by the losses (60-70%) caused by Callosobruchus maculatus F. (Coleoptera: Bruchidae). Whereas many studies have been devoted to the ecology of these bruchids and allowed to distinguish physiotypes and morphotypes, few studies have been conducted on the spatial and temporal structuring of populations of the weevil and migration patterns between agro-ecological areas. By using molecular data; (a combined set of a mitochondrial and ribosomal genes), this study aims to identify genetic diversity and phylogenetic affinities of allopatric C. maculatus populations within the West Africa sub-region. Climate influence (Agro-ecological conditions) was also tested. The results reveal several ecotypes circulate in the West Africa sub-region. Among samples, the genetic distances measured on the total alignment of CytB + 28S (852 bp) ranged between 0 and 0.047 and show clearly fall in three classes. The phylogenetic reconstructions show clearly that the genetic structure of the C. maculatus populations is strongly influenced by the agro-ecological zone.
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CN15O2986 | H800-NDO | Article scientifique | CNRA/Bambey | Rayons | Exclu du prêt |
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CR1200003 | F011-DIO | Article scientifique | CERAAS/Thiès | Rayons | Exclu du prêt |
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Journal of Cell and Animal Biology, Vol. 6(13),. Haplotype diversity of Tribolium castaneum H. (Coleotera, Tenebrionidae) pest of stored millet in Senegal [texte imprimé] / Toffene Diome, Auteur ; Cheikh Thiaw, Auteur ; Assane Ndong, Auteur . - Full Length Research Paper . - [S.l.] : Academic Journals, 2012 . - pp. 192-199 : tabl., graph., fig. ISSN : ISSN 1996-0867 DOI: 10.5897/JCAB12.037 Langues : Anglais ( eng) Catégories : | PROTECTION DES PRODUITS ENTREPOSES
| Mots-clés : | Tribolium castaneum, zone Agroécologique, Haplotype, Diversité Génétique. | Index. décimale : | H800-DIO | Résumé : | In Senegal, millet occupies the most important place among the cereal crops. This cereal stocks are attacked by the Coleoptera, usch as Tribolium castaneum. This beetle attacks grains and causes significant losses on stocks of beaten millet in the Sahelian zone. The objective of this study is to genetically characterize the populations of T. castaneum encountered in different agroecological zones to identify the different haplotypes circulating in Senegal. The results showed that there are at least 12 haplotypes of T. castaneum in Senegal. High haplotype diversity in the northern groundnut basin and high nucleotide diversity in the south of the groundnut basin were also noted. The cereal in the market of Sandiara was the cause of the wealth of haplotype and nucleotide diversity in the north of the groundnut basin. The high haplotype diversity and the low nucleotide diversity in the basin centered in eastern Senegal, high Casamance may be the result of rapid population growth from an ancestral population at low numbers. There was no significant genetic differentiation between agroecological zones. The strong genetic differentiation of some individuals with multiple mutations not in the haplotype network was due to a structure based on the host plant. |
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CN15O2984 | H800- DIO | Article scientifique | CNRA/Bambey | Rayons | Exclu du prêt |
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South Asian Journa of Experimental Biology. Capacity of biodemographic developpment of Tribolium castaneum Herbst (Coleoptera, Tenebrionidae) and Sitophilus zeamais Motschulsky (Coleoptera, Curculionidae) in stored cereals in Senegal [texte imprimé] / A .C. Guéye, Auteur ; Toffene Diome, Auteur ; Cheikh Thiaw, Auteur ; Assane Ndong, Auteur ; A Gueye Ndiaye, Auteur ; Mbacké Sembène, Auteur . - (SN) : ISRA/CERAAS, 2012 . - 10p. : Vol. 2,. ISSN : 2230-9799 Langues : Anglais ( eng)
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CR1200005 | F011-GUE | Article scientifique | CERAAS/Thiès | Rayons | Exclu du prêt |
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