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Research article2016Peer reviewed

Molecular diversity of turncurtoviruses in Iran

Kamali, Mehdi; Heydarnejad, Jahangir; Massumi, Hossain; Kvarnheden, Anders; Kraberger, Simona; Varsani, Arvind


Turnip curly top virus (TCTV) is the only member of the newly established genus Turncurtovirus (family Geminiviridae). As part of an ongoing study to identify additional plant hosts and the diversity of turncurtoviruses, between 2012 and 2014, we sampled symptomatic turnip plants and other crops in the provinces Fars and Khorasan Razavi (southern and northeastern Iran, respectively). Infection by turncurtoviruses was tested by PCR and/or rolling-circle amplification (RCA) coupled with restriction enzyme digests. Turncurtoviruses were identified in turnip as well as seven other field crops, including eggplant, basil, radish, lettuce, sugar beet, red beet and spinach. Full turncurtovirus genomes were recovered from 25 of these samples, leading to the identification of TCTV and a new putative turncurtovirus, turnip leaf roll virus (TLRV; 13 isolates), which shares \80 % genome-wide pairwise identity with TCTV. Agroinoculation of plants with an infectious clone of TLRV demonstrated that this virus could infect several plant hosts under greenhouse conditions and could be transmitted by the leafhopper Circulifer haematoceps (Mulsant and Rey, 1855) from agroinoculated to healthy plants.

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Archives of Virology
2016, Volume: 161, number: 3, pages: 551-561

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