Abstract
In this study, the ability of high-throughput sequencing (HTS) to detect viruses in vegetable prickly pear cactus was exploited. Samples from State of Mexico (EDMX), Hidalgo, and Morelos, as well as Mexico City (CDMX), were analyzed. In the sample from EDMX, the genomes of Opuntia virus 2 (OV2, genus Tobamovirus) and Cactus carlavirus 1 (CCV-1, genus Carlavirus) were detected and recovered. In the sample from CDMX, in addition to OV2 and CCV-1, a new viroid and potexvirus were detected. The former has a circular RNA genome with a length of 412 nt for which the name “Opuntia viroid I” (OVd-I) is proposed. The primary structure of this viroid showed a nucleotide sequence identity of less than 80% with any of the currently known viroids and a phylogenetic relationship with the genus Apscaviroid (Family Pospiviroidae) with which it shares conserved structural motifs. The new potexvirus was named Opuntia potexvirus A (OPV-A), whose viral replicase sequence has a 77.7 % amino acid identity with Schlumbergera virus X. Finally, CCV-1 was detected in 93 (72 %) of 129 vegetable prickly pear cactus samples collected in the four entities.
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Schedule a callMore From: Revista Mexicana de Fitopatología, Mexican Journal of Phytopathology
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