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Quantitative trait loci in pepper genome control the effective population size of two RNA viruses at inoculation
hal.structure.identifier | Unité de Pathologie Végétale [PV] | |
hal.structure.identifier | Génétique et Amélioration des Fruits et Légumes [GAFL] | |
dc.contributor.author | TAMISIER, Lucie | |
hal.structure.identifier | Institut Sophia Agrobiotech [ISA] | |
hal.structure.identifier | Unité de Pathologie Végétale [PV] | |
hal.structure.identifier | Biological control of artificial ecosystems [BIOCORE] | |
dc.contributor.author | ROUSSEAU, Elsa | |
hal.structure.identifier | Unité de Pathologie Végétale [PV] | |
dc.contributor.author | BARRAILLÉ, Sebastien | |
hal.structure.identifier | Génétique et Amélioration des Fruits et Légumes [GAFL] | |
dc.contributor.author | NEMOUCHI, Ghislaine | |
hal.structure.identifier | Génétique et Amélioration des Fruits et Légumes [GAFL] | |
dc.contributor.author | SZADKOWSKI, Marion | |
hal.structure.identifier | Institut Sophia Agrobiotech [ISA] | |
hal.structure.identifier | Biological control of artificial ecosystems [BIOCORE] | |
dc.contributor.author | MAILLERET, Ludovic | |
hal.structure.identifier | Biological control of artificial ecosystems [BIOCORE] | |
dc.contributor.author | GROGNARD, Frédéric | |
hal.structure.identifier | Santé et agroécologie du vignoble [UMR SAVE] | |
dc.contributor.author | FABRE, Frédéric | |
hal.structure.identifier | Unité de Pathologie Végétale [PV] | |
dc.contributor.author | MOURY, Benoît | |
hal.structure.identifier | Génétique et Amélioration des Fruits et Légumes [GAFL] | |
dc.contributor.author | PALLOIX, Alain | |
dc.date.accessioned | 2024-04-08T12:30:26Z | |
dc.date.available | 2024-04-08T12:30:26Z | |
dc.date.issued | 2016 | |
dc.date.conference | 2016-09-12 | |
dc.identifier.isbn | 978-615-5270-27-7 | |
dc.identifier.uri | https://oskar-bordeaux.fr/handle/20.500.12278/197012 | |
dc.description.abstractEn | Infection of plants by viruses is a complex process that involves several steps: inoculation into plant cells, replication in inoculated cells, cell-to-cell movement during leaf colonization and long-distance movement during systemic infection. The success of the different steps is conditioned by the effective viral population size (<em>Ne</em>) defined as the number of individuals that pass their genes to the next generation. During the infection cycle, the virus population will endure several bottlenecks leading to drastic reductions in <em>Ne</em> and to the random loss of sorne virus variants. If strong enough, these bottlenecks could act against selection by eliminating the fittest variants. Therefore, a better understanding of how plant affects Ne rnay contribute to the developrnent of durable virus-resistant cultivars. We aimed to (i) identify plant genetic factors that control <em>Ne</em> at the inoculation step, (ii) understand the mechanisms used by the plant to control <em>Ne</em> and (iii) compare these genetic factors with other genes controlling virus life cycle and plant resistance durability. The virus effective population size was measured in a segregating population of 152 doubled-haploid lines of <em>Capsicum annuum</em>. Plants were inoculated mechanically either with a Patata virus Y (PVY) construct expressing the green fluorescent protein (OFP), or a necrotic variant of Cucumber mosaic virus (CMV), the CMV-N strain of Fulton. Ne was assessed by counting the number ofprimary infection foci observed on inoculated cotyledons under UV light for PVY -OFP or the number of necrotic local lesionsobserved on inoculated leaves for CMY-N. The numbers of primary infection foci and locallesions were correlated arnong the doubled-haploid lines (r=0.57) and showed a high heritability (h2=0.93 and 0.98 for PVY and CMV, respectively). The effective population size of the two viruses was shown to be controlled by botb common quantitative trait loci (QTLs) and virus-specifie QTLs, indicating the contribution ofboth general and specifie mechanisms. The PVY-specific QTL colocalizes with a QTL that had previously been shown to be involved in PVY accumulation and capacity to break amajor-effect resistance gene down. | |
dc.language.iso | en | |
dc.publisher | Diamond Congress Ltd | |
dc.publisher.location | Budapest (hungary) | |
dc.title.en | Quantitative trait loci in pepper genome control the effective population size of two RNA viruses at inoculation | |
dc.type | Communication dans un congrès | |
dc.subject.hal | Sciences du Vivant [q-bio]/Sciences agricoles | |
dc.subject.hal | Sciences du Vivant [q-bio]/Microbiologie et Parasitologie/Virologie | |
bordeaux.page | 591 p. | |
bordeaux.hal.laboratories | Santé et Agro-Ecologie du Vignoble (SAVE) - UMR 1065 | * |
bordeaux.institution | Bordeaux Sciences Agro | |
bordeaux.institution | INRAE | |
bordeaux.conference.title | 16. Eucarpia Capsicum and Eggplant meeting | |
bordeaux.country | HU | |
bordeaux.conference.city | Kecskemét | |
bordeaux.peerReviewed | non | |
hal.identifier | hal-02738767 | |
hal.version | 1 | |
hal.invited | non | |
hal.conference.organizer | Szent István University. Gödöllo, HUN. | |
hal.conference.end | 2016-09-14 | |
hal.popular | non | |
hal.audience | Internationale | |
hal.origin.link | https://hal.archives-ouvertes.fr//hal-02738767v1 | |
bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.date=2016&rft.spage=591%20p.&rft.epage=591%20p.&rft.au=TAMISIER,%20Lucie&ROUSSEAU,%20Elsa&BARRAILL%C3%89,%20Sebastien&NEMOUCHI,%20Ghislaine&SZADKOWSKI,%20Marion&rft.isbn=978-615-5270-27-7&rft.genre=unknown |
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