Host plant resistance to aphids in cultivated crops: genetic and molecular bases, and interactions with aphid populations.
Host plant resistance is an efficient and environmentally friendly means of controlling insects, including aphids, but resistant-breaking biotypes have occurred in several plant-aphid systems. Our review of the genetic and molecular bases of aphid resistance in crop species emphasizes the limited number of aphid resistance genes and alleles. Inheritance of aphid resistance may be monogenic (dominant or recessive genes) or polygenic. Two dominant, aphid resistance genes have been isolated to date. They both encode NBS-LRR proteins involved in the specific recognition of aphids. Strategies to ensure aphid resistance effectiveness and durability are discussed. Innovative research activities are proposed.
Dogimont
Catherine
C
Inra Avignon, UR1052 génétique et amélioration des fruits et légumes, domaine Saint-Maurice, BP 94, 84143 Montfavet cedex, France. catherine.dogimont@avignon.inra.fr
Bendahmane
Abdelhafid
A
Chovelon
Véronique
V
Boissot
Nathalie
N
D000818:Animals; D001042:Aphids / Q000235:genetics* / Q000502:physiology*; D018556:Crops, Agricultural / Q000235:genetics* / Q000502:physiology*; D017343:Genes, Plant / Q000235:genetics; D006790:Host-Parasite Interactions / Q000235:genetics*; D010641:Phenotype; D012463:Saliva / Q000737:chemistry; D037521:Virulence Factors
D037521:Virulence Factors