Chan and his colleagues focused their work on the laboratory plant Arabidopsis, which has certain genetic mutations that allow it to produce diploid eggs without sexual recombination
It is because the fungus that causes the wheat disease called stripe rust may use sexual recombination
to adapt to resistant varieties of wheat.
There, mild to subtropical climates in areas where sunflowers grow allow the rust fungus, Puccinia helianthi, to skip its winter survival phase and evolve more rapidly via sexual recombination
One quote makes the point: 'One respect in which [memes] are not like genes is that there is nothing obviously corresponding to chromosomes or loci or alleles or sexual recombination
Variation comes forth via mutations and sexual recombination
The differences seen between Asian and American rust specimens may be due to the fungus' apparent lack of sexual recombination
in the United States and Costa Rica.