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Genome Characteristics, Phylogeny and Varying Host Specificity of P olish K ra and R os Isolates of T omato torrado virus
Author(s) -
Marta Budziszewska,
Henryk Pospieszny,
Aleksandra ObrępalskaStęplowska
Publication year - 2016
Publication title -
journal of phytopathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 60
eISSN - 1439-0434
pISSN - 0931-1785
DOI - 10.1111/jph.12417
Subject(s) - biology , solanum tuberosum , genome , host (biology) , homology (biology) , virus , phylogenetics , genetics , botany , gene
The genome sequences of two Polish Kra and Ros isolates of Tomato torrado virus (To TV ) were determined and compared with data of previously described To TV isolates and other Torradovirus members. Whole‐genome sequence comparisons revealed 97.0–99.6% nucleotide sequence identities and close relatedness, with other known To TV isolates. The high homology between Kra, Ros and Wal'03 To TV s is likely responsible for the similar symptoms observed on infected plants. However, the symptoms differed in intensity and various host specificity. We report that Kra To TV caused a milder expression of symptoms on Solanum tuberosum than Wal'03. We hypothesize this may be a result of the significant variability observed within the 3′‐ UTR of RNA 1 of Kra as well as of Ros To TV isolates. In the light of this fact, potato may be considered an indicator plant for distinguishing Kra and Wal'03 To TV isolates.