Durable resistance against Meloidogyne chitwoodi and M. fallax

Abstract

The EU-funded Project QLRT-1999-1462 DREAM (Durable Resistance Against Meloidogyne) aims to contribute to sustainable production systems by developing a strategy for durable resistance management for two polyphagous quarantine root-knot nematodes Meloidogyne chitwoodi and M. fallax. The objective will be achieved by integrating expertise in breeding, nematology, botany and molecular biology. The project combines three areas of research: 1. Identification and incorporation of resistance in important arable crops: potato, pepper, ryegrass and fodder radish, 2. Study of variation in nematode virulence and of durability of the resistance, and 3. Optimising of production systems by rotation schemes. The main results expected are: resistant germplasm, characterised pathogen collections, breeding methods, knowledge of the stability of resistance, molecular markers linked to resistance and (a)virulence, resistance mechanisms and genes, genetic maps, and improved rotation schemes. The strategy and some first results will be discussed.

Keywords

• meloidogyne chitwoodi
• root-knot nematodes
• virulence
• solanum
• capsicum
• raphanus
• lolium
• resistance breeding