Welcome to European Tribune. It's gone a bit quiet around here these days, but it's still going.
Display:
'Tree Of Life' Has Lost A Branch, According To Largest Genetic Comparison Of Higher Life Forms Ever
ScienceDaily (Jan. 22, 2008) -- Norwegian and Swiss biologists have made a startling discovery about the relationship between organisms that most people have never heard of. The Tree of Life must be re-drawn, textbooks need to be changed, and the discovery may also have significant impact on the development of medicines.

The discovery by Norwegian and Swiss researchers has gained attention from biologists worldwide. The findings come from the largest ever genetic comparison of higher life forms on the planet. Of 5000 genes examined, researchers identified 123 common genes from all known groups of organisms; these common genes have been studied more closely.

Lost a Branch

"The results were pretty astounding. All non-bacterial life on Earth--called eukaryotic life-- can now be divided into four main groups instead of the five groups that we have been working with up to now," says Kamran Shalchian-Tabrizi, an associate professor from the University of Oslo's Department of Biology who has also worked with the Department of Zoology and Animal Biology and the Department of Genetic Medicine and Development, at the University of Geneva, Switzerland.

The Tree of Life (see illustration) has, through the discovery that the two formerly separated branches share a similar evolutionary history, lost one of its branches, and this will both improve and simplify quite a bit of scientific work in the future.

[...]

"The Tree of Life tells the story of life on Earth, and our research can say something about how quickly life developed. Our discovery suggests that there were fewer big "events" than we have previously assumed in the development of higher life forms. The more we know about the branches on the Tree of Life, the more we can find out about life's Big Bang, the beginning of life on Earth," says Shalchian-Tabrizi.



The fact is that what we're experiencing right now is a top-down disaster. -Paul Krugman
by dvx (dvx.clt št gmail dotcom) on Tue Jan 22nd, 2008 at 04:34:17 AM EST
[ Parent ]

Others have rated this comment as follows:

Display:

Occasional Series