Acknowledgement
This paper was part of the Ph.D. research of the first author with financial support from the Pan African University Institute of Life and Earth Sciences (Including Health and Agriculture), of the African Union hosted by the University of Ibadan, Ibadan, Nigeria. We are grateful to AfricaRice Gene bank for providing the plant materials and the Plant Pathology team of Africa Rice Benin for their technical support and for providing the virus strain used in this study.
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