 Both bread wheat and "Triticale" are examples of an allopolyploids with six chromosome sets.Cotton, peanut, or quinoa are allotetraploids with multiple origins.In Brassicaceous crops, the Triangle of U describes the relationships between the three common diploid Brassicas ("B. oleracea, B. rapa," and "B. nigra") and three allotetraploids ("B. napus, B. juncea," and "B. carinata") derived from hybridization among the diploid species.