Sunchoke Genome Skimming

Looking at Sunchoke results on search engines I found an article about ‘Genome Skimming’ using the sunchoke. The researchers say that sunchokes must have been recursively hybridized from the Ashy/Hairy Sunflower and the Sawtooth Sunflower. They didn’t explain what they meant by “recursively hybridized”. Anyway I am probably going to obtain a few seeds of both types of sunflowers and see what I get by playing around and cross-pollinating them. If nothing else the flowers will be enjoyable to look at.