Journal of
Cell and Animal Biology

  • Abbreviation: J. Cell Anim. Biol.
  • Language: English
  • ISSN: 1996-0867
  • DOI: 10.5897/JCAB
  • Start Year: 2007
  • Published Articles: 260

Full Length Research Paper

Haplotype diversity of Tribolium castaneum H. (Coleotera, Tenebrionidae) pest of stored millet in Senegal

Toffène Diome1, 3*, Cheikh Thiaw2, Assane Ndong1, 3, Malick Sarr2,3, Mamadou Kane1 and Mbacké Sembène1,3  
1Centre de Biologie pour la Gestion des Populations ; Institut de Recherche pour le développement. IRD/ Bel-AiR Sénégal.  2Senegalese Institute of Agricultural Research; Regional Center for the Study on Improvement of Adaptation to Drought (ISRA/CERAAS), P.O. Box 3320 Thies Escale, Senegal. 3Département de Biologie Animale, Faculté des Sciences et Techniques, Université C.A. Diop, B.P. 5005 Dakar, Sénégal.  
Email: [email protected]

  •  Accepted: 08 June 2012
  •  Published: 31 August 2012

Abstract

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 causessignificant losses on stocks of beaten millet in the Sahelian zone. The objective of this study is togenetically characterize the populations of T. castaneum encountered in different agroecological zonesto identify the different haplotypes circulating in Senegal. The results showed that there are at least 12haplotypes 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 thehaplotype network was due to a structure based on the host plant.

 

Key words: Tribolium castaneum, agro-ecological zones, haplotype, genetic diversity.