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Results from the ResistVir database
Genetic resistances to plant viruses and their vectors

Information about IPV
Plant/Virus Interactions - UMR GDPP - Research Centre INRA Bordeaux-Aquitaine - INRA
Villenave d'Ornon - France

Last database update for these data: 2008-06-04 - Data extracted on 2009-04-14 from the database.

Genetic resistances studied by the group
No Name Period Host plant Virus Description                                 Origin Mechanism                                 Availability Durability              Determinism              Controlling genes/QTL              Cloned Gene Involved gene/protein              QTL or gene(s) Location                   Alleles                           Accession(s)
1 mo1 - lettuce 2000 - 2003 Lactuca sativa Lettuce mosaic virus the recessive mo11 and mo12 alleles at the mo1 locus are associated with reduced accumulation and lack of symptoms (tolerance) or absence of accumulation (resistance) of common isolates of LMV in Lactuca sativa. Lactuca sativa The mo1 resistance gene encodes the translation initiation factor eIF4E involved in the viral cycle (probably for the translation of viral RNA). yes Durable with known breaking strains monogenic recessive Yes translation initiation factor eIF4E mo1 The mo11 and mo12 alleles are the identified resistance alleles of the mo1 gene. AF530162
2 RLM - Arabidopsis thaliana 2002 - 2007 Arabidopsis thaliana Lettuce mosaic virus Screening of several accessions of Arabidopsis with three isolates of LMV allowed the identification of a resistance targetting all LMV isolates tested ecotype Cvi-1 In Cvi-1, LMV is able to multiply in inoculated leaves but unable to move systemically in plant no Unknown monogenic dominant one gene involved No RLM1 Chromosome 1
3 RTM - Arabidopsis thaliana 2004 - 2007 Arabidopsis thaliana Lettuce mosaic virus
Plum pox virus		 The RTM resistance was described in A. thaliana first with TEV after a screen of a mutant library Arabidopsis thaliana, ecotype Columbia The RTM resistance restricts the long distance transport of potyvirus, probably blocking the loading of virus in phloem No Unknown polygenic dominant at least three genes involved. Two of them are cloned (RTM1 and RTM2) Yes A jacalin-like protein (RTM1), a small heat-shock protein (RTM2) RTM1
RTM2
RTM3		 Chromosome 1
Chromosome 5
Chromosome 3		 Several resistant and susceptible alleles were identified for RTM1 and RTM2 in different Arabidopsis ecotypes

 AF191302
AF208051