DNA passed to and from all kinds of organisms, even across kingdoms, has helped shape the tree of life, to a large and undisputed degree in microbes and also unexpectedly in multicellular fungi, plants, and animals.
Jennifer A. Schweitzer, Mark A. Genung, and Joseph K. Bailey | Sep 1, 2014 | 10+ min read
In addition to serving as a set of instructions to build an individual, the genome can influence neighboring organisms and, potentially, entire ecosystems.