Icelandic Birch Polyploids—The Case of a Perfect Fit in Genome Size

Figure 4

Linear discriminant analysis of leaf shape variables in 41 birch plants from Bifröst: 16 diploid, 2 triploid, and 23 tetraploid. Originally there were 3 triploid plants, but one was missing from this data set although the plant was characterized (Figure 3(b)). The labels in red are individuals used in the genome size study, 10 in total. The analysis shows two clusters, diploid and tetraploid. The triploid plants fall within the tetraploid cluster.