The visual diagram is an example of how to describe the genetic background of a variety using the dendrogram or family tree method.
In the left hand column, labelled "line" is the example variety "2354a" displayed in the fourth row.
The middle column, labelled "parents" contains separate lines linking "2354a" from the left hand column to "female:A" displayed in the second row and "male:B" displayed in the sixth row.
The right hand column, labelled "grandparents" contains separate lines linking "female:A" from the middle column with "female:C/D" displayed in the first row and "male:E/F//G" in the third row. Separate lines linking "male:B" from the middle column with "female:H" displayed in the fifth row and "male :I/*2 J" displayed in the seventh row.