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Plant Pathology
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Plant Pathology
Article
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PubMed Central
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Epidemiological assessment of cassava mosaic disease in Burkina Faso

Authors: Monique Soro; Fidèle Tiendrébéogo; Justin S. Pita; Edwig T. Traoré; Koussao Somé; Ezechiel B. Tibiri; James B. Néya; +3 Authors

Epidemiological assessment of cassava mosaic disease in Burkina Faso

Abstract

Abstract Surveys were conducted in 2016 and 2017 across the main cassava‐growing regions of Burkina Faso to assess the status of cassava mosaic disease (CMD) and to determine the virus strains causing the disease, using field observation and phylogenetic analysis. CMD incidence varied between regions and across years but was lowest in Hauts‐Bassins (6.0%, 2016 and 5.4%, 2017) and highest in Centre‐Sud (18.5%, 2016) and in Boucle du Mouhoun (51.7%, 2017). The lowest CMD severity was found in Est region (2.0) for both years and the highest in Sud‐Ouest region (3.3, 2016) and Centre‐Sud region (2.8, 2017). The CMD infection was primarily associated with contaminated cuttings in all regions except in Hauts‐Bassins, where whitefly‐borne infection was higher than cuttings‐borne infection in 2016. PCR screening of 687 samples coupled with sequence analysis revealed the presence of African cassava mosaic‐like (ACMV‐like) viruses and East African cassava mosaic‐like (EACMV‐like) viruses as single infections at 79.5% and 1.1%, respectively. Co‐infections of ACMV‐like and EACMV‐like viruses were detected in 19.4% of the tested samples. In addition, 86.7% of the samples positive for EACMV‐like virus were found to be positive for East African cassava mosaic Cameroon virus (EACMCMV). Phylogenetic analysis revealed the segregation of cassava mosaic geminiviruses (CMGs) from Burkina Faso into three clades specific to ACMV, African cassava mosaic Burkina Faso virus (ACMBFV), and EACMCMV, confirming the presence of these viruses. The results of this study show that EACMCMV occurrence may be more prevalent in Burkina Faso than previously thought.

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
22
Top 10%
Top 10%
Top 10%
Green
hybrid