horizontal gene transfer: the real IM? (Introduction)

by David Turell , Sunday, December 14, 2014, 14:22 (3415 days ago)

Here's another possibility for the IM issue;-"What has become increasingly clear in the past 10 years is that this liberal genetic exchange is definitely not limited to the DNA of the microscopic world. It likewise happens to genes that belong to animals, fungi and plants, collectively known as eukaryotes because they boast nuclei in their cells. The ancient communion between ferns and hornworts is the latest in a series of newly discovered examples of horizontal gene transfer: when DNA passes from one organism to another generally unrelated one, rather than moving ‘vertically' from parent to child. In fact, horizontal gene transfer has happened between all kinds of living things throughout the history of life on the planet - not just between species, but also between different kingdoms of life. Bacterial genes end up in plants; fungal genes wind up in animals; snake and frog genes find their way into cows and bats. It seems that the genome of just about every modern species is something of a mosaic constructed with genes borrowed from many different forms of life."-http://aeon.co/magazine/science/how-horizontal-gene-transfer-changes-evolutionary-theory/