Why the lettuce mitochondrial genome is like a chopped salad

The genomes of mitochondria are usually depicted as rings or circles. But in plants, 1 ring does not rule them all. A new study of lettuce shows that the mitochondrial genome often forms branching structures with elements that can be swapped around like a chopped salad.

from Top Environment News -- ScienceDaily https://ift.tt/2kQY1ml