First report of tomato brown rugose fruit virus in tomato in Albania

Published 2022년 2월 14일

Tridge summary

Albania has seen a surge in tomato production, with the total acreage reaching 6663 ha in 2019. However, in October 2021, crops in the Fier and Berat regions suffered from a mysterious ailment, with symptoms such as discoloration, mosaic, and narrowing of upper leaf blades, and fruits showing brown necrotic spots and wrinkled skin. Tests confirmed these symptoms to be caused by the tomato brown rugose fruit virus (ToBRFV), marking the first report of this virus in Albania's tomato crops. The virus was identified in all symptomatic plants but not in the asymptomatic ones, and sequences from two isolated symptomatic plants showed over 99% nucleotide identity with isolates from other countries. This discovery highlights the spread of ToBRFV in southern Europe.

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Original content

During the past years, tomato production in Albania showed a signiﬁcant growth with the total acreage in 2019 reaching 6663 ha (FAO: 2020). In October 2021, greenhouse tomato crops (unknown hybrid) in Fier and Berat regions in Albania, showed discoloration, mosaic, and narrowing of upper leaf blades (Luria et al.2017). The fruits of aﬀected plants showed brown necrotic spots and wrinkled skin with an incidence of 15-20%. These symptoms resemble those caused by the tomato brown rugose fruit virus (ToBRFV). Therefore, samples from ten symptomatic and ﬁve asymptomatic plants from each region were collected and tested for the presence of ToBRFV by reverse transcription (RT)-PCR using the primer set ToBRFV-F7/ToBRFV-R7 (Salem et al. 2020), which ampliﬁes a 689 bp fragment of the movement and the coat protein genes. ToBRFV was identiﬁed in all symptomatic but not in the asymptomatic plants. Two randomly selected isolates (namely ToBRFV-Al-F and ToBRFV-Al-B, one from each geographic ...

Source: Hortidaily