Fig. 2: Genetic diversity and somatic mutations.
a, Distribution of π0/π4 plotted against π4 among plants (modified from a previous publication9), including oak (red square). Species names are according to9. b, Genomic location of somatic mutations along the 12 chromosomes of a 100-year-old oak tree. Mutations are represented as coloured arrows according to where they took place during tree growth (see inset). Location and age (left of the trunk) of the three levels (L1, L2 and L3) sampled for somatic mutation detection in the reference pedunculate oak genotype 3P. L1, L2 and L3 represent the end of selected branches; XL1 and XL2 represent L1-branch and L2-branch initiation sites, respectively. For each branch, the recovery or non-recovery of mutations in acorns is indicated by filled and open squares, respectively. The numbers of copies of the alternative (coloured) and reference (grey) alleles are shown below each square.
