's genes were distinct from those of non-flowering plants. In its mitochondrial DNA, which tends to change less than nuclear DNA,
showed a shared affiliation with mosses and green algae.
Biologist Danny W. Rice of Indiana University and his team hypothesize that wounded
plants obtained the shared mitochondrial genomes as a result of horizontal gene transfer between these other organisms it was living in close proximity with millions of years ago.
genomic DNA is shown in blue, chloroplast DNA in green, and mitochondrial DNA in red.