Post-transcriptional gene silencing in plum pox virus resistant transgenic european plum containing the plum pox potyvirus coat protein gene

Transgenic plums containing the plum pox potyvirus coat protein (PPV-CP) gene were inoculated with PPV. Infection was monitored by evaluating symptoms, ELISA, and IC-RT-PCR. Transgenic clone C5 was highly resistant to PPV during four years of testing and displayed characteristics typical of post-tra...

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Veröffentlicht in:Transgenic research 2001-06, Vol.10 (3), p.201-209
Hauptverfasser: SCORZA, Ralph, CALLAHAN, Ann, LEVY, Laurene, DAMSTEEGT, Vern, WEBB, Kevin, RAVELONANDRO, Michel
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container_end_page 209
container_issue 3
container_start_page 201
container_title Transgenic research
container_volume 10
creator SCORZA, Ralph
CALLAHAN, Ann
LEVY, Laurene
DAMSTEEGT, Vern
WEBB, Kevin
RAVELONANDRO, Michel
description Transgenic plums containing the plum pox potyvirus coat protein (PPV-CP) gene were inoculated with PPV. Infection was monitored by evaluating symptoms, ELISA, and IC-RT-PCR. Transgenic clone C5 was highly resistant to PPV during four years of testing and displayed characteristics typical of post-transcriptional gene silencing (PTGS), including a high level of transgene transcription in the nucleus, low levels of transgene mRNA in the cytoplasm, a complex multicopy transgene insertion with aberrant copies, and methylation of the silenced PPV-CP transgene. The PPV-CP transgene was also methylated in seedlings of C5 and these seedlings were resistant to PPV. Our results show, for the first time, that PTGS functions as a mechanism for virus resistance in a woody perennial species.
doi_str_mv 10.1023/A:1016644823203
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Infection was monitored by evaluating symptoms, ELISA, and IC-RT-PCR. Transgenic clone C5 was highly resistant to PPV during four years of testing and displayed characteristics typical of post-transcriptional gene silencing (PTGS), including a high level of transgene transcription in the nucleus, low levels of transgene mRNA in the cytoplasm, a complex multicopy transgene insertion with aberrant copies, and methylation of the silenced PPV-CP transgene. The PPV-CP transgene was also methylated in seedlings of C5 and these seedlings were resistant to PPV. Our results show, for the first time, that PTGS functions as a mechanism for virus resistance in a woody perennial species.</description><identifier>ISSN: 0962-8819</identifier><identifier>EISSN: 1573-9368</identifier><identifier>DOI: 10.1023/A:1016644823203</identifier><identifier>PMID: 11437277</identifier><language>eng</language><publisher>Dordrecht: Springer</publisher><subject>Agronomy. Soil science and plant productions ; Biological and medical sciences ; Biotechnology ; Blotting, Southern ; Capsid - genetics ; Capsid - metabolism ; Coat protein ; Cytoplasm ; Disease resistance ; DNA Methylation ; Enzyme-Linked Immunosorbent Assay ; Fruit - genetics ; Fruit - metabolism ; Fruit - virology ; Fundamental and applied biological sciences. Psychology ; Gene Expression Regulation, Viral ; Gene Silencing ; Genes, Viral - genetics ; Genetic engineering ; Genetic Predisposition to Disease ; Genetic technics ; Genetics and breeding of economic plants ; Insertion ; Life Sciences ; Methods. Procedures. Technologies ; Pest resistance ; Plant Diseases - genetics ; Plant Diseases - virology ; Plant pathogens ; Plant virus diseases ; Plant viruses ; Plants, Genetically Modified ; Plum pox ; plum pox potyvirus ; Plum pox virus ; Plum Pox Virus - genetics ; Plum Pox Virus - physiology ; Polymerase Chain Reaction ; Post-transcription ; Potyvirus ; Proteins ; Prunus ; Prunus domestica domestica ; Reverse Transcriptase Polymerase Chain Reaction ; RNA, Messenger - genetics ; RNA, Messenger - metabolism ; Seedlings ; Transcription, Genetic - genetics ; Transgenes - genetics ; Transgenic animals and transgenic plants ; Transgenic plants ; Varietal selection. 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Infection was monitored by evaluating symptoms, ELISA, and IC-RT-PCR. Transgenic clone C5 was highly resistant to PPV during four years of testing and displayed characteristics typical of post-transcriptional gene silencing (PTGS), including a high level of transgene transcription in the nucleus, low levels of transgene mRNA in the cytoplasm, a complex multicopy transgene insertion with aberrant copies, and methylation of the silenced PPV-CP transgene. The PPV-CP transgene was also methylated in seedlings of C5 and these seedlings were resistant to PPV. Our results show, for the first time, that PTGS functions as a mechanism for virus resistance in a woody perennial species.</description><subject>Agronomy. Soil science and plant productions</subject><subject>Biological and medical sciences</subject><subject>Biotechnology</subject><subject>Blotting, Southern</subject><subject>Capsid - genetics</subject><subject>Capsid - metabolism</subject><subject>Coat protein</subject><subject>Cytoplasm</subject><subject>Disease resistance</subject><subject>DNA Methylation</subject><subject>Enzyme-Linked Immunosorbent Assay</subject><subject>Fruit - genetics</subject><subject>Fruit - metabolism</subject><subject>Fruit - virology</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Gene Expression Regulation, Viral</subject><subject>Gene Silencing</subject><subject>Genes, Viral - genetics</subject><subject>Genetic engineering</subject><subject>Genetic Predisposition to Disease</subject><subject>Genetic technics</subject><subject>Genetics and breeding of economic plants</subject><subject>Insertion</subject><subject>Life Sciences</subject><subject>Methods. 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Soil science and plant productions</topic><topic>Biological and medical sciences</topic><topic>Biotechnology</topic><topic>Blotting, Southern</topic><topic>Capsid - genetics</topic><topic>Capsid - metabolism</topic><topic>Coat protein</topic><topic>Cytoplasm</topic><topic>Disease resistance</topic><topic>DNA Methylation</topic><topic>Enzyme-Linked Immunosorbent Assay</topic><topic>Fruit - genetics</topic><topic>Fruit - metabolism</topic><topic>Fruit - virology</topic><topic>Fundamental and applied biological sciences. Psychology</topic><topic>Gene Expression Regulation, Viral</topic><topic>Gene Silencing</topic><topic>Genes, Viral - genetics</topic><topic>Genetic engineering</topic><topic>Genetic Predisposition to Disease</topic><topic>Genetic technics</topic><topic>Genetics and breeding of economic plants</topic><topic>Insertion</topic><topic>Life Sciences</topic><topic>Methods. Procedures. 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Infection was monitored by evaluating symptoms, ELISA, and IC-RT-PCR. Transgenic clone C5 was highly resistant to PPV during four years of testing and displayed characteristics typical of post-transcriptional gene silencing (PTGS), including a high level of transgene transcription in the nucleus, low levels of transgene mRNA in the cytoplasm, a complex multicopy transgene insertion with aberrant copies, and methylation of the silenced PPV-CP transgene. The PPV-CP transgene was also methylated in seedlings of C5 and these seedlings were resistant to PPV. Our results show, for the first time, that PTGS functions as a mechanism for virus resistance in a woody perennial species.</abstract><cop>Dordrecht</cop><pub>Springer</pub><pmid>11437277</pmid><doi>10.1023/A:1016644823203</doi><tpages>9</tpages></addata></record>
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subjects Agronomy. Soil science and plant productions
Biological and medical sciences
Biotechnology
Blotting, Southern
Capsid - genetics
Capsid - metabolism
Coat protein
Cytoplasm
Disease resistance
DNA Methylation
Enzyme-Linked Immunosorbent Assay
Fruit - genetics
Fruit - metabolism
Fruit - virology
Fundamental and applied biological sciences. Psychology
Gene Expression Regulation, Viral
Gene Silencing
Genes, Viral - genetics
Genetic engineering
Genetic Predisposition to Disease
Genetic technics
Genetics and breeding of economic plants
Insertion
Life Sciences
Methods. Procedures. Technologies
Pest resistance
Plant Diseases - genetics
Plant Diseases - virology
Plant pathogens
Plant virus diseases
Plant viruses
Plants, Genetically Modified
Plum pox
plum pox potyvirus
Plum pox virus
Plum Pox Virus - genetics
Plum Pox Virus - physiology
Polymerase Chain Reaction
Post-transcription
Potyvirus
Proteins
Prunus
Prunus domestica domestica
Reverse Transcriptase Polymerase Chain Reaction
RNA, Messenger - genetics
RNA, Messenger - metabolism
Seedlings
Transcription, Genetic - genetics
Transgenes - genetics
Transgenic animals and transgenic plants
Transgenic plants
Varietal selection. Specialized plant breeding, plant breeding aims
title Post-transcriptional gene silencing in plum pox virus resistant transgenic european plum containing the plum pox potyvirus coat protein gene
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