Peach sharka resistance trait-Decroocq-2005

Project Overview
Project Name Peach sharka resistance trait-Decroocq-2005
Description Plum pox virus (PPV), the causative agent of sharka disease in Prunoideae, is one of the most serious problems affecting stone fruit production in Europe and America. Resistance to PPV was previously described in a Prunus davidiana clone, P1908, and introduced into peach (Prunus persica) genotypes. Genetic resistance to PPV displays a complex pattern of quantitative inheritance. An analysis of quantitative trait loci (QTLs) for resistance was performed on an F1 interspecific peach population obtained from a cross between the susceptible nectarine cultivar Summergrand and P. davidiana. The hybrids were graft-inoculated with PPV in duplicate following a classical procedure. The incidence of infection was evaluated four times, over two vegetative cycles, by symptom observation and enzyme-linked immunoadsorbent assays (ELISA). Restriction of systemic downward movement of the PPV virus was also evaluated by testing the susceptible rootstocks. Using both analysis of variance and non-parametric tests, six genomic regions involved in PPV resistance were detected.
Project type QTL
Crop peach
Contact
NameDetails
V. Decroocq
First name:V.
Last name:Decrocq
Institution:INRA, Bordeaux
Address:Unite de Recherche sur les Especes Fruitieres et la Vigne, Centre de Bordeaux, BP 81, 33883 Villenave d Ornon cedex, France
Country:France
Email:decroocq@bordeaux.inra.fr
Traits
This project contains 1 Traits:
Name
resistance to plum pox virus
Page
1
QTL
This project contains 6 QTL:
Download Table
Linkage GroupNameTypeStartStopPeak
Peach-SP-F1-2003.G1qRPPV.SP-G1.1QTL--2.5
Peach-SP-F1-2003.G1qRPPV.SP-G1.2QTL--63
Peach-SP-F1-2003.G2qRPPV.SP-G2QTL--38
Peach-SP-F1-2003.G4qRPPV.SP-G4.1QTL--35
Peach-SP-F1-2003.G6qRPPV.SP-G6.1QTL--69
Peach-SP-F1-2003.G7qRPPV.SP-G7.1QTL--20
Page
1