African Journal of Agricultural Research
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Article Number - F26793950392


Vol.10(7), pp. 702-709 , February 2015
DOI: 10.5897/AJAR2014. 8862
ISSN: 1991-637X



Full Length Research Paper

Towards understanding the diversity of banana bunchy top virus in the Great Lakes region of Africa



Célestin Niyongere
  • Célestin Niyongere
  • Institut des Sciences Agronomiques du Burundi (ISABU), P. O. Box 795, Bujumbura, Burundi.
  • Google Scholar
Pascale Lepoint
  • Pascale Lepoint
  • Bioversity International, P. O. Box 24384, Kampala, Uganda.
  • Google Scholar
Turoop Losenge
  • Turoop Losenge
  • Department of Horticulture, Jomo Kenyatta University of Agriculture and Technology, P. O. Box 62000-00100 Nairobi, Kenya.
  • Google Scholar
Guy Blomme
  • Guy Blomme
  • Bioversity International, P.O. Box 7180, Bujumbura, Burundi.
  • Google Scholar







 Received: 24 May 2014  Accepted: 10 February 2015  Published: 12 February 2015

Copyright © 2015 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0


The genetic variability of banana bunchy top virus (BBTV) isolates from the Great Lakes region of Africa (GLRA) spanning Burundi, the Democratic Republic of the Congo and Rwanda was assessed to better understand BBTV diversity and its epidemiology for improved disease management. DNA-R and DNA-S fragments of the virus genome were amplified and sequenced in this study. These two BBTV fragments were previously used to classify isolates into the South Pacific and the Asian groups. Phylogenetic analyses based on nucleotide sequences involving GLRA isolates and those obtained from the GenBank database were carried out. Sequence similarity for both DNA-R and DNA-S fragments ranged between 99.1 to 100.0% among the GLRA isolates, 96.2 to 100.0% and 89.7 to 94.3% between the GLRA isolates and those previously clustering in the South Pacific and the Asian groups, respectively. These results showed that GLRA isolates belong to the South Pacific group and are phylogenetically close to the reference Indian isolate. The similar banana cultivars and BBTV isolates across the GLRA implied that the disease may have mainly spread through exchange of planting material (suckers) between farmers. Thus, farmers’ awareness and quarantine measures should be implemented to reduce BBTV spread in the GLRA.

 

Key words: Banana bunchy top disease (BBTD), Musa spp., Pentalonia nigronervosa, virus genome.

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APA Niyonger, C., Lepoint, P., Losenge,T.,Blomme, G., & Ateka, E.M. (2015). Towards understanding the diversity of banana bunchy top virus in the Great Lakes region of Africa. African Journal of Agricultural Research, 10(7), 702-709.
Chicago C&elestin Niyongere, Pascale Lepoint, Turoop Losenge, Guy Blomme and Elijah Miinda Ateka. "Towards understanding the diversity of banana bunchy top virus in the Great Lakes region of Africa." African Journal of Agricultural Research 10, no. 7 (2015): 702-709.
MLA Ceacute;lestin Niyongere, et al. "Towards understanding the diversity of banana bunchy top virus in the Great Lakes region of Africa." African Journal of Agricultural Research 10.7 (2015): 702-709.
   
DOI 10.5897/AJAR2014. 8862
URL http://academicjournals.org/journal/AJAR/article-abstract/F26793950392

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