'Revival' Tasmanian tiger DNA
Has offered a piece of DNA to the Tasmanian tiger back to life.
Australian scientists extracted genetic material from a sample museum 100 years, and placed in the mouse embryo to study how it works.
This has been the use of DNA for the first time species have become extinct in this way, "said a team from the University of Melbourne.
The study, published online by the Public Library of Science (PLoS), suggests that diversity may not be in the marsupial genetic diversity to be lost.
Said Dr Andrew Pask from the Department of Zoology, who led the research team, that this is the first time that the use of DNA from extinct species to perform the function in the organism.
"As more and more species of extinct animals, we continue to lose critical knowledge of gene function and potential," he said.
"So far we are only able to examine the sequence of genes from extinct animals. Has developed this study was to further study the function of the gene became extinct in the whole neighborhood."
Genetic
Tasmanian tiger was hunted to extinction in the wild in 1900. Last known specimen died in captivity in 1936, but many of the museums in all parts of the world continues to tissue samples preserved in alcohol.
Photo: Museum and Art Gallery Tasmania
The Tasmanian tiger was the largest marsupial carnivore
Extract the team at the University of Melbourne, DNA from some of these samples, and injected a gene involved in cartilage formation in developing mouse embryos.
DNA works in a similar manner to the equivalent gene in mice, giving information on the genetics of the extinct marsupial.
"In a time of increasing rates of extinction at an alarming rate, especially mammals, this research discovery is critical," said Professor Marilyn Renfree, also of the University of Melbourne Department of Zoology.
"For those species have already become extinct, our method shows that it may not get on biodiversity and genetic be lost completely."
Frozen Ark
Said Professor David Rawson, who was not part of the research team, work and gave a glimpse of one side of the organism that we no longer have.
"We get a glimpse, we see only a very small part of the whole situation," he said.
Prof Rawson said the DNA came from species that have disappeared in recent times only, of which there are models in the maintenance of alcohol. To go beyond that in time will be more difficult, "he said.
"To return to the animals and plants that disappeared thousands of years, and there is less chance for a large part of DNA to detect," he said.
"But new technologies evolve all the time - we can now get information from the materials that we thought was impossible."
Some researchers believe that the method can help in the detection of gene function in species such as Neanderthals or mammoths.
البروÙيسور روسون ØŒ للبØØ« يران معهد ÙÙŠ جامعة بيدÙوردشير ØŒ المملكة المتØدة ØŒ هي واØدة من خبراء من المملكة المتØدة أكثر انخراطا ÙÙŠ سÙينة Ù†ÙˆØ Ø§Ù„Ù…Ø¬Ù…Ø¯Ø© ØŒ وهو مشروع عالمي للØÙاظ على المعلومات Genetic من مجموعة من الأنواع المهددة بالانقراض.
And publishes full details of the Australian study in the journal PLoS and open access one.
Australian scientists extracted genetic material from a sample museum 100 years, and placed in the mouse embryo to study how it works.
This has been the use of DNA for the first time species have become extinct in this way, "said a team from the University of Melbourne.
The study, published online by the Public Library of Science (PLoS), suggests that diversity may not be in the marsupial genetic diversity to be lost.
Said Dr Andrew Pask from the Department of Zoology, who led the research team, that this is the first time that the use of DNA from extinct species to perform the function in the organism.
"As more and more species of extinct animals, we continue to lose critical knowledge of gene function and potential," he said.
"So far we are only able to examine the sequence of genes from extinct animals. Has developed this study was to further study the function of the gene became extinct in the whole neighborhood."
Genetic
Tasmanian tiger was hunted to extinction in the wild in 1900. Last known specimen died in captivity in 1936, but many of the museums in all parts of the world continues to tissue samples preserved in alcohol.
Photo: Museum and Art Gallery Tasmania
The Tasmanian tiger was the largest marsupial carnivore
Extract the team at the University of Melbourne, DNA from some of these samples, and injected a gene involved in cartilage formation in developing mouse embryos.
DNA works in a similar manner to the equivalent gene in mice, giving information on the genetics of the extinct marsupial.
"In a time of increasing rates of extinction at an alarming rate, especially mammals, this research discovery is critical," said Professor Marilyn Renfree, also of the University of Melbourne Department of Zoology.
"For those species have already become extinct, our method shows that it may not get on biodiversity and genetic be lost completely."
Frozen Ark
Said Professor David Rawson, who was not part of the research team, work and gave a glimpse of one side of the organism that we no longer have.
"We get a glimpse, we see only a very small part of the whole situation," he said.
Prof Rawson said the DNA came from species that have disappeared in recent times only, of which there are models in the maintenance of alcohol. To go beyond that in time will be more difficult, "he said.
"To return to the animals and plants that disappeared thousands of years, and there is less chance for a large part of DNA to detect," he said.
"But new technologies evolve all the time - we can now get information from the materials that we thought was impossible."
Some researchers believe that the method can help in the detection of gene function in species such as Neanderthals or mammoths.
البروÙيسور روسون ØŒ للبØØ« يران معهد ÙÙŠ جامعة بيدÙوردشير ØŒ المملكة المتØدة ØŒ هي واØدة من خبراء من المملكة المتØدة أكثر انخراطا ÙÙŠ سÙينة Ù†ÙˆØ Ø§Ù„Ù…Ø¬Ù…Ø¯Ø© ØŒ وهو مشروع عالمي للØÙاظ على المعلومات Genetic من مجموعة من الأنواع المهددة بالانقراض.
And publishes full details of the Australian study in the journal PLoS and open access one.
'Revival' Tasmanian tiger DNA
Animals Tigers
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