Année : 2019
Revue : European Scientific Journal , 15 (15) : 229-243
Lien de l’article : http://dx.doi.org/10.19044/esj.2019.v15n15p229
Discipline : Sciences biologiques
Auteur(s) : Kouka Fidele Tiendrebeogo, Nerbewende Sawadogo, Mahamadi Hamed Ouedraogo, Zakaria Kiebre, Wend-Pagnangde Marie Serge Felicien Zida, Kiswendsida Romaric Nanema,, Teyoure Benoit Joseph Batieno, Renan Ernest Traore, Pauline Bationo-Kando, Jean-Didier Zongo, Mahamadou Sawadogo
Auteur(s) tagués : BATIONO/KANDO Pauline KIEBRE Zakaria NANEMA Kiswendsida Romaric OUEDRAOGO Mahamadi Hamed SAWADOGO Nerbéwendé TRAORE Renan Ernest ZONGO Jean Didier SAWADOGO Mahamadou
Résumé
Jatropha curcas L. is a perennial oleaginous plant commonly used in tropical areas as a medicinal plant in the construction of defensive hedges against animals, and in the fight against water erosion. It produces oil which
can be used as agrofuel or soap-making. Despite its potential, the species remain under-exploited and its genetic diversity is still not very well-known in Burkina Faso. This paper focuses on determining the level and structure of
the genetic diversity of 50 accessions collected in three phytogeographical sectors of the country using 12 microsatellite markers. Results revealed a total of 37 alleles in the studied population with an average of 3 alleles per locus, a number of 2.717 effective alleles, and a Shannon diversity index of 1.663. Mean observed heterozygosity and mean expected heterozygosity were 0.144 and 0.356, respectively. Accessions were structured into three genetic groups. The high genetic distance of 0.177 was observed between groups A and B, and a low genetic distance of 0.075 was observed between groups B and C. These preliminary results showed that microsatellites are promising tools that can be used for the characterization of J. curcas. They indicate that the population studied has a low genetic diversity, but it is sufficient to develop programs for conservation and sustainable development of the species.
Mots-clés
Burkina Faso, genetic variability, Jatropha curcas, SSR markers, under exploited plant