Fig. 2.

Tandem repeats associated with end homology in plant species. (A) Frequency of tandem repeats associated with end homology in angiosperm and gymnosperm species. In each box, horizontal lines from top to bottom refer to the first quartile, median, and third quartile. Each red, green, and blue dot represents an angiosperm, conifer, and gymnosperm (excluding conifers), respectively. (B) Length of end homology against repeat units. Correlations were evaluated by Pearson’s correlation coefficient tests. (C) Distribution of end homology lengths. Values of ≥6 bp suggest microhomology-mediated tandem duplication.