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Articles by A. Onasanya
Total Records ( 2 ) for A. Onasanya
  Y. Sere , A. Onasanya , V. Verdier , K. Akator , L.S. Ouedraogo , Z. Segda , M.M. Coulibaly , A.Y. Sido and A. Basso
  As little information is available in Africa on Xanthomonas oryzae pv. oryzae, a highly destructive pathogen of rice, and its relationship with released rice varieties, a disease survey and samplings were carried out in Niger, Burkina Faso and Mali which indicated a wide spread of Bacterial Leaf Blight (BLB) in farmers’ fields. Sixty pure BLB isolates cultures were obtained. Pathogenicity of 4 Malian isolates against four important rice varieties revealed differences in pathogenicity among isolates and in resistance of the varieties tested. The results obtained in these initial studies revealed the future research directions to increasing rice production in West Africa.
  F.E. Nwilene , A. Onasanya , O. Okhidievbie , Y. Sere , M.N. Ndjiondjop and I. Ingelbrecht
  Identification and differentiation of three Nigerian Orseolia sp. (Orseolia nwanzei, Orseolia bonzii and Orseolia oryzivora) was carried out using Random Amplified Polymorphic DNA (RAPD) markers. Ninety operon primers were screened, from which 6 showed polymorphism among the three species tested, generating 54 bands, 69% of which were polymorphic with sizes ranging between 1000 and 3000 bp. DNA fingerprints of adults and pupae of each species were genetically identical. O. oryzivora and O. bonzii are identified as most closely related, while O. nwanzei is distinct. The DNA fingerprints identified for each Orseolia sp. will be useful for entomological survey for the identification of new species within the context of the effective development of rice cultivars with durable resistance to AfRGM.
 
 
 
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