Viruses infecting common bean (Phaseolus vulgaris L.) in Tanzania: a review on molecular characterization, detection and disease management options
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Date
2017
Journal Title
Journal ISSN
Volume Title
Publisher
African Journal of Agricultural Research
Abstract
Common bean (Phaseolus vulgaris L.) is a major legume crop, serving as a main source of dietary
protein and calories and generating income for many Tanzanians. It is produced in nearly all agro ecological zones of Tanzania. However, the average yields are low (<1000 kg/ha), which is attributed to
many factors including virus diseases. The most important viruses of common bean in Tanzania are
Bean common mosaic virus (BCMV) and Bean common mosaic necrosis virus (BCMNV) but other
viruses have also been reported. There has never been a review of common bean virus diseases in the
country, and the lack of collated information makes their management difficult. Therefore, this review
focuses on (1) occurrence of different viruses of common bean in Tanzania, (2) molecular
characterization of these viruses, (3) detection tools for common bean viruses in Tanzania and (4)
available options for managing virus diseases in the country. Literature and nucleotide sequence
database searches revealed that common bean diseases are inadequately studied and that their causal
viruses have not been adequately characterized at the molecular level in Tanzania. Increased
awareness on common bean virus diseases in Tanzania is expected to result into informed
development of strategies for management of the same and thus increased production, which in turn
has implication on nutrition and income
Description
Journal article
Keywords
Bean common mosaic virus (BCMV), Bean common mosaic necrosis virus (BCMNV), Common bean viruses, Tanzania, Virus molecular detection.