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Genetic structure of Two Sitophilus (Coleoptera, Curculionidae) species according to storage infrastructures and agro-ecological areas.

Senegal and the Republic of Guinea are made up in majority of agricultural population, which most often stores grain after harvest. During this storage, a major party is attacked by insect pests as Sitophilus zeamais and Sitophilus oryzae commonly known as weevils. They can cause losses up to 20-30%. Thus the objective of this study is to determine the genetic structuring according to the agro - ecological zones and infrastructure of storage of two species of Sitophilus (Sitophilus zeamais and Sitophilus oryzea). This is done by PCRSequencing of the gene for Cytochrome b and Cytochrome oxidase I. The results indicate that the two species are genetically different. At the level of the Cyt. b, S. zeamais present a genetic structuring at the level of some infrastructure preparations and for the COI, genetic structuring was observed based on infrastructure preparations and agroecological zones.


Auteur(s) : Sarr A.G.R.J., Dia C.A.KK.M., Ndiaye M.R. Sembène M.
Pages : 1-11
Année de publication : 2016
Revue : International Journal of Science and Advanced Technology.
N° de volume : 6 (4)
Type : Article
Mise en ligne par : SEMBENE Mbacké