1887

Abstract

An unusual variant of citrus exocortis viroid (CEV) was detected when an inoculum source from D.C. was used to infect a hybrid tomato ( Mill. × ). The 92 nucleotide larger variant, CEV D-92, which displayed the characteristic circular and linear viroid structural forms, contained two repeated sequences spanning the V and T2 domains. A dramatic moderation of symptom expression in accompanied the incorporation of these repeated sequences. A comparison of the sequence and structure of CEV D-92 with coconut cadang-cadang viroid revealed similarities in the regions generating the naturally occurring terminal repeats suggesting a possible preferred site for RNA recombination between viroids.

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/content/journal/jgv/10.1099/0022-1317-75-4-727
1994-04-01
2019-11-23
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http://instance.metastore.ingenta.com/content/journal/jgv/10.1099/0022-1317-75-4-727
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