Theoretical and Applied Genetics (2002) 104, 586-591

C. Caranta, S. Pflieger, V. Lefebvre, A.M. Daubèze, A. Thabuis and A. Palloix (2002)
QTLs involved in the restriction of Cucumber mosaic virus (CMV) long-distance movement in pepper
Theoretical and Applied Genetics 104 (4), 586-591
Abstract: Partial restriction of cucumber mosaic virus (CMV) long-distance movement originating from the Capsicum annuum inbred line 'Vania' was assessed in a doubled-haploid progeny using two screening methods: the first allowed one to assess the resistance of adult plants decapitated above the fourth leaf and inoculated on the third leaf using a common CMV strain, and the second allowed one to assess CMV resistance to long-distance movement on seedlings inoculated using an atypical CMV strain. For both resistance tests, the behavior of the F₁ hybrid between 'Vania' and the susceptible line 'H3' indicated that partial resistance is inherited as a dominant trait. Phenotypic data from the two screening methods were correlated but the one performed on seedlings was much more severe. A subset of 184 molecular markers well-distributed over the pepper genome was selected for QTL mapping using the composite interval mapping (CIM) method. A total of seven genomic regions, including one major effect and several minor effect QTLs, were shown to be associated with partial restriction of CMV long-distance movement. These results are compared with those already obtained in pepper and also in other solanaceous crops, potato and tomato.
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Link to article at publishers website
Database assignments for author(s): Carole Caranta, Alain Palloix, Véronique Lefebvre

Research topic(s) for pests/diseases/weeds:
resistance/tolerance/defence of host

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Cucumber mosaic virus	Green pepper/chilli (Capsicum)