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Potato Virus Y (PVY) Isolates from Solanum betaceum Represent Three Novel Recombinants Within the PVYN Strain Group and Are Unable to Systemically Spread in Potato.
Green, Kelsie J; Funke, Cassandra N; Chojnacky, Jeffrey; Alvarez-Quinto, Robert A; Ochoa, Jose B; Quito-Avila, Diego F; Karasev, Alexander V.
Afiliação
  • Green KJ; Department of EPPN, University of Idaho, Moscow, ID.
  • Funke CN; Department of EPPN, University of Idaho, Moscow, ID.
  • Chojnacky J; Department of EPPN, University of Idaho, Moscow, ID.
  • Alvarez-Quinto RA; Centro de Investigaciones Biotecnologicas del Ecuador (CIBE), Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, Ecuador.
  • Ochoa JB; Instituto Nacional Autónomo de Investigaciones Agropecuarias (INIAP), Quito, Ecuador.
  • Quito-Avila DF; Centro de Investigaciones Biotecnologicas del Ecuador (CIBE), Escuela Superior Politécnica del Litoral (ESPOL), Guayaquil, Ecuador.
  • Karasev AV; Department of EPPN, University of Idaho, Moscow, ID.
Phytopathology ; 110(9): 1588-1596, 2020 Sep.
Article em En | MEDLINE | ID: mdl-32370660
Tamarillo, or tree tomato (Solanum betaceum), is a perennial small tree or shrub species cultivated in subtropical areas for fresh fruit and juice production. In Ecuador, tamarillo orchards are affected by several viruses, with one previously identified as potato virus Y (PVY); however, the specific strain composition of PVY in tamarillo was not determined. In 2015 and 2016, eight tamarillo plants exhibiting symptoms of leaf drop, mosaic, and mottled fruit were sampled near Tumbaco and Quito, Ecuador. These tamarillo PVY isolates were able to systemically infect tobacco, Nicotiana benthamiana, naranjilla, and tamarillo. Seven of the eight PVY isolates from tamarillo exhibited N-serotype, while one of the PVY isolates studied, Tam15, had no identifiable serotype. One isolate, Tam17, had N-serotype but produced asymptomatic systemic infection in tobacco. In tamarillo, four tamarillo isolates induced mosaic and slight growth retardation and were unable to systemically infect pepper or potato. Tamarillo, on the other hand, was unable to support systemic infection of PVY isolates belonging to the PVYO and PVYEu-N strains. The whole genomes of eight PVY isolates were sequenced from a series of overlapping RT-PCR fragments. Phylogenetically, tamarillo PVY isolates were found to belong to the large PVYN lineage, in a new tamarillo clade. Recombination analysis revealed that these tamarillo PVY isolates represent at least three novel recombinant types not reported before. The combination of the biological and molecular properties found in these eight PVY isolates suggested the existence of a new tamarillo strain of PVY that may have coevolved with S. betaceum.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Solanum tuberosum / Potyvirus / Solanum País/Região como assunto: America do sul / Ecuador Idioma: En Revista: Phytopathology Assunto da revista: BOTANICA Ano de publicação: 2020 Tipo de documento: Article País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Solanum tuberosum / Potyvirus / Solanum País/Região como assunto: America do sul / Ecuador Idioma: En Revista: Phytopathology Assunto da revista: BOTANICA Ano de publicação: 2020 Tipo de documento: Article País de publicação: Estados Unidos