Discovery of Viruses and Virus-Like Pathogens in Pistachio using High-Throughput Sequencing

Pistachio (Pistacia vera L.) trees from the National Clonal Germplasm Repository (NCGR) and orchards in California were surveyed for viruses and virus-like agents by high-throughput sequencing (HTS). Analyses of sequence information from 60 trees identified a novel virus, provisionally named "P...

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Veröffentlicht in:Plant disease. - 1997. - 102(2018), 7 vom: 24. Juli, Seite 1419-1425
1. Verfasser: Al Rwahnih, Maher (VerfasserIn)
Weitere Verfasser: Rowhani, Adib, Westrick, Nathaniel, Stevens, Kristian, Diaz-Lara, Alfredo, Trouillas, Florent P, Preece, John, Kallsen, Craig, Farrar, Kristen, Golino, Deborah
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Capsid Proteins
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520 |a Pistachio (Pistacia vera L.) trees from the National Clonal Germplasm Repository (NCGR) and orchards in California were surveyed for viruses and virus-like agents by high-throughput sequencing (HTS). Analyses of sequence information from 60 trees identified a novel virus, provisionally named "Pistachio ampelovirus A" (PAVA), in the NCGR that showed low amino acid sequence identity (approximately 42%) compared with members of the genus Ampelovirus (family Closteroviridae). A putative viroid, provisionally named "Citrus bark cracking viroid-pistachio" (CBCVd-pis), was also found in the NCGR and showed approximately 87% similarity to Citrus bark cracking viroid (CBCVd, genus Cocadviroid, family Pospiviroidae). Both PAVA and CBCVd-pis were graft transmissible to healthy UCB-1 hybrid rootstock seedlings (P. atlantica × P. integerrima). A field survey of 123 trees from commercial orchards found no incidence of PAVA but five (4%) samples were infected with CBCVd-pis. Of 675 NCGR trees, 16 (2.3%) were positive for PAVA and 172 (25.4%) were positive for CBCVd-pis by reverse-transcription polymerase chain reaction. Additionally, several contigs across multiple samples exhibited significant sequence similarity to a number of other plant virus species in different families. These findings require further study and confirmation. This study establishes the occurrence of viral and viroid populations infecting pistachio trees 
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700 1 |a Rowhani, Adib  |e verfasserin  |4 aut 
700 1 |a Westrick, Nathaniel  |e verfasserin  |4 aut 
700 1 |a Stevens, Kristian  |e verfasserin  |4 aut 
700 1 |a Diaz-Lara, Alfredo  |e verfasserin  |4 aut 
700 1 |a Trouillas, Florent P  |e verfasserin  |4 aut 
700 1 |a Preece, John  |e verfasserin  |4 aut 
700 1 |a Kallsen, Craig  |e verfasserin  |4 aut 
700 1 |a Farrar, Kristen  |e verfasserin  |4 aut 
700 1 |a Golino, Deborah  |e verfasserin  |4 aut 
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