Two billion-year-old riddle of life is solved as ’nature’s big bang’ is mapped for first time
2010-10-09 0:00

From: DailyMail.co.uk



A two billion-year-old riddle of how the basic building blocks of life were formed has been solved by scientists.

’Nature’s big bang’ - when two single cells fused into one living organism - has been mapped for the first time by researchers led by a team from Ireland.

Dr James McInerney, senior biologist at the National University of Ireland (NUI) in Maynooth, said the discovery in effect traced humans’ oldest ancestor.


Remarkable: Scientists have now mapped nature’s ’big bang’, which is when two organisms fuse together.

’This was a remarkable event, which appears to have happened only once,’ Mr McInerney said.

’These two primitive single cell life forms came together in an event that essentially allowed nature to grow big.’

Dr McInerney said the research would help explain what gave rise to all multi-cell organisms we know today - insects, plants, animals and humans.
Using genetics and information from the mapping of the yeast genome, evidence of two originally single cells, known as prokaryotes, were discovered in a eukaryote which formed with a nucleus.

Researchers were able to show that yeast - a model system for molecular biology - contained one eukaryote genome which came from two distinct different prokaryote genomes.

Dr McInerney said: ’It is in the nucleus that we find the DNA of all species, and for years it had been a puzzle as to how the first nucleus was created. Now we know.’

Researchers believe this can be dated to about two billion years after the oldest micro-fossils.

The discovery follows the mapping of the family tree of all nature by researchers at NUI Maynooth.

Dr McInerney said: ’Essentially, you had an organism, like the Minotaur in ancient Greece, and this, in biological terms is what we hypothesised was the common ancestor of all eukaryotic life.

’Because humans are eukaryotes, we were, in essence, trying to trace the deepest human ancestor.’

Dr McInerney, of NUI Maynooth’s Bioinformatics and Molecular Evolution Unit of the Department of Biology, collaborated with Dr James Cotton at the world-famous Sanger Institute in Cambridge, England, to make the discovery.

Their work has been published in the eminent Proceedings of the National Academy of Sciences, USA.

The discovery was made after 10 years research at NUI Maynooth and followed the sequencing of the yeast genome in 1997.


Article from: dailymail.co.uk






Related Articles
Revised theory of gravity doesn’t predict a Big Bang
Big Bang experiment may reveal dark universe: CERN
Structure of HIV genome ’decoded’
Mammoth’s genome pieced together
’Watermarks’ written in first artificial genome
First genome transplant turns one species into another


Latest News from our Front Page

Wotan: The Archetype of the Awakened Aryan Man
2015-08-05 2:50
Wotan/Woden/Odin represents the archetype of the questing and awakened Aryan man, in particular the questing and awakened Germanic man. Whilst it is clear from our studies of Germanic mythology that Wotan was not the original primary God of the Germanic pantheon – that honour rests with Tiw/Tyr/Ziu  – nevertheless, Wotan represents that questing and awakened part of the Aryo-Germanic soul more than any other deity. In this article I wish to focus ...
Worker fired over hospital's hardline vaccination policy
2015-08-04 20:55
Three others suspended under Waikato DHB’s new rule requiring staff to be vaccinated or wear a mask. One worker has now been sacked for defying a new hard-line policy forcing unvaccinated Waikato District Health Board staff to get flu jabs or wear masks. A number of staff at the DHB have come forward with concerns since the Weekend Herald revealed that three ...
Bulgaria keeps out migrants with a 50 mile razor wire fence along Turkish border
2015-08-04 20:27
Keep out: Police chief Ivan Stoyanov at the fenceStretching far into the horizon, this is the super-fence blocking thousands of migrants hoping for a new life in Europe. As police in Calais struggle to contain thousands trying to storm the Eurotunnel in their desperation to get into Britain, the Bulgarian authorities are shoring up their border with Turkey. The barriers around the ...
DF wants video to tell refugees to stay away
2015-08-04 20:59
 “If you want to seek happiness in Europe, Denmark is not the right place.”  That’s the message that the anti-immigration Danish People’s Party (DF) wants to send loud and clear to asylum seekers.   DF spokesman Martin Henriksen is calling on Denmark to replicate Australia by releasing a video in English and Arabic that will discourage asylum seekers from making their way ...
Dutch King Willem-Alexander declares the end of the welfare state
2015-08-04 18:26
King Willem-Alexander delivered a message to the Dutch people from the government in a nationally televised address: the welfare state of the 20th century is gone. In its place a "participation society" is emerging, in which people must take responsibility for their own future and create their own social and financial safety nets, with less help from the national government. The ...
More News »