The gene , which confers resistance to several species of root-knot nematode, is present in many modern tomato cultivars. Recent cloning of this gene revealed that it encodes a member of the plant resistance protein family characterized by the presence of a putative nucleotide binding site and a leucine-rich repeat. Analysis of transgenic plants revealed the unexpected result that also confers resistance to potato aphids. Although highly effective in many conditions, fails to confer resistance at high soil temperature, and -virulent nematode isolates have been identified in many areas of the world. These findings have stimulated efforts to identify new sources of root-knot nematode resistance. Resistance genes that differ from in properties and genetic position have been identified in . These genes, as well as the cloned gene, provide a resource for broadening the base of root-knot nematode resistance in tomato and other crops.


Article metrics loading...

Loading full text...

Full text loading...


Data & Media loading...

  • Article Type: Review Article
This is a required field
Please enter a valid email address
Approval was a Success
Invalid data
An Error Occurred
Approval was partially successful, following selected items could not be processed due to error