The evolution of disease resistance genes

The evolution of disease resistance genes

Several common themes have shaped the evolution of plant disease resistance genes. These include duplication events of progenitor resistance genes and further expansion to create clustered gene families. Variation can arise from both intragenic and intergenic recombination and gene conversion. Recom...

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Bibliographic Details
Published in:Plant molecular biology Vol. 42; no. 1; pp. 195 - 204
Main Authors: Richter, T E, Ronald, P C
Format: Journal Article
Language:English
Published: Netherlands Springer Nature B.V 01-01-2000
Subjects:
Crop diseases
Disease resistance
Evolution, Molecular
Genes
Genes, Plant
Genetic Variation
Genetics
Plant diseases
Plant Diseases - genetics
Plants - genetics
Online Access:Get full text
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Summary:Several common themes have shaped the evolution of plant disease resistance genes. These include duplication events of progenitor resistance genes and further expansion to create clustered gene families. Variation can arise from both intragenic and intergenic recombination and gene conversion. Recombination has also been implicated in the generation of novel resistance specificities. Resistance gene clusters appear to evolve more rapidly than other regions of the genome. In addition, domains believed to be involved in recognitional specificity, such as the leucine-rich repeat (LRR), are subject to adaptive selection. Transposable elements have been associated with some resistance gene clusters, and may generate further variation at these complexes.
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ISSN:0167-4412
1573-5028
DOI:10.1023/A:1006388223475