Virulence genes in the pathogen mutate quite often. How do the R genes (host) evolve?

28 September 2017 1 10K Report

I have heard that R genes, in the host, also evolve like evolution in the pathogen. But I am unable to figure it out in my head. Does it happen when parental crosses are made. I found it hard to believe when I heard someone saying that susceptible genes evolve to become resistant in the host.

Gyanendra Singh

The evolution is a natural process and can happen either way. There are possibilities that susceptible host undergo evolution and become moderately resistant.

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