Feuilleter BEC-UAC par
Publications par type
- Article (9712)
- Brevet (6)
- Communication (360)
- Documents de valorisation (6)
- Documents de vulgarisation (4)
- Fiches Techniques (33)
- Livre (277)
- Memoire (14)
- Poster (61)
- Projet (9)
Qualité des articles
- Impact Factor(2560)
- Indexé (2875)
- Comité de lecture (3606)
- Autre (177)
Liens utiles
Publications Scientifiques
[ Article ] Using isozyme polymorphism to assess genetic variation within cultivated yams (Dioscorea cayenensis / Dioscorea rotundata complex) of the Republic of Benin
| Date de soumission: | 13-03-2017 |
|---|---|
| Année de Publication: | 2000 |
| Entité/Laboratoire | Laboratoire de Génétique Ecologique |
| Document type : | Article |
| Discipline(s) : | Génétique et Amélioration des Plantes |
| Titre | Using isozyme polymorphism to assess genetic variation within cultivated yams (Dioscorea cayenensis / Dioscorea rotundata complex) of the Republic of Benin |
|---|---|
| Auteurs | DANSI ANAGONOU ALEXANDRE [1], Mignouna H. D. [2], ZOUNDJIHEKPON JEANNE [3], Sangare A. [4], Asiedu R [5], Ahoussou N [6], |
| Journal: | Genetic Resources and Crop Evolution |
| Catégorie Journal: | Internationale |
| Impact factor: | 0.69 |
| Volume Journal: | 47 |
| DOI: | |
| Resume | Four hundred and sixty-seven accessions of cultivated Guinea yam (Dioscorea cayenesis / Dioscorea rotundata complex) collected from different localities of Benin republic were analysed to study isoenzymatic variability in seven enzyme systems : aspartate aminotransferase (AAT), esterate (EST), glucose-6-phosphate dehydrogenase (G6PDH), isocitrate dehydrogenase (IDH), phosphoglucomitase (PGM), phosphoglucoisomerase (PGI), and shikimate dehydrogenase (SKDH) using starch gel electrophoresis. Polymorphism was observed in all of the enzyme systems and a total of 62 electromorphs of different frequency and variability patterns were recorded. Different combinations of bending patterns of these systems led to identification of 227 different cultivars within the 467 accessions analysed. For an old and vegetatively propagated crop (with a considerable number vernacular names) such as yam, and for which a high rate of duplication is expected, the 227 cultivars were found to be good enough to be considered as the adequate number of accessions representing the diversity in the germplasm analysed. Cluster analysis (UPGMA) produced a most likely division of the 467 accessions into two groups corresponding to D. rotundata Poir and D. cayenensis Lam, supporting the concept that the two forms of guinea yam represent different genetic entities. The different clusters formed within the white yams (D. rotundata) did not exactly conform to the known cultivar groups. Additional polymorphic enzymes are needed for an accurate isozyme-based genetic discrimination of most of the cultivar groups. |
| Mots clés | core collection, cultivar groups, Dioscorea cayenesis, Dioscorea rotundata, genetic relatedness, Guinea yam, isozyme markers, morphotype, yam identification. |
| Pages | 371 - 383 |
| Fichier |  (PDF) |
Publications par entité
- Centre de Formation et de Recherche en matière de Population (CEFORP) (0)
- Centre Interfacultaire de Formation et de Recherche en Environnement pour le Développement Durable (CIFRED) (0)
- Chaire Internationale en Physique Mathématique et Applications (CIPMA-Chaire UNESCO) (0)
- Ecole Doctorale Pluridisciplinaire <<Espaces, Culture et Développement>> (0)
- Ecole Nationale d'Administration et de Magistrature (ENAM) (0)
- Ecole Nationle d'Economie Appliquée et de Management (0)
- Ecole Normale Supérieure (0)
- Ecole Polytechnique d'Abomey-Calavi (EPAC) (0)
- Faculté de droit et de Science Politique (FADESP) (0)
- Faculté des Lettres et Sciences Humaines (FLASH) (0)
- Faculté des Lettres, Langues, Arts et Communications (FLLAC) (0)
- Faculté des Sciences Agronomiques (0)
- Faculté des Sciences de la Santé (FSS) (0)
- Faculté des Sciences Economiques et de Gestion (FASEG) (0)
- Faculté des Sciences et Techniques (FAST) (0)
- Faculté des Sciences Humaines et Sociales (FASHS) (0)
- Institut de Formation et de Recherche en Informatique (IFRI) (0)
- Institut de Géographie de l'Aménagement du territoire et de l'Environnement (IGATE) (0)
- Institut de Mathématiques et de Sciences Physiques (IMSP) (0)
- Institut National de l'Eau (INE) (0)
- INSTITUT NATIONAL DE LA JEUNESSE DE L’EDUCATION PHYSIQUE ET SPORT(INJEPS) (0)
- Institut National des Métiers d'Art d'Archéologie et de la Culture (INMAAC) (0)
- Institut National Médico Sanitaire ( INMeS) (0)
- Institut Régional de Santé Publique (IRSP) (0)
Publications par sexe
- Femme( 1397 )
- Homme (