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The return of the tiger of Tasmania It will be possible to be returned to contemplate alive to that carnivorous marsupial of brown coat with dark rays, whose last unit died in captivity in zoo of Hobart 66 years ago Australian Museum Professor Director Michael Archer looks AT an 1866 Tasmanian Tiger embryo and skeleton in Sydney May 28, 2002 that scientists have used to successfully replicate some of the animals genes using DNA extracted from the specimen. Scientists say they hope to clone to Tasmanian Tiger in 10 years if they plows successful in constructing large quantities of all the genes of the extinct animal and sequencing sections of the genome to create to genetic library of Tasmanian Tiger DNA. The animal, also known ace to thylacine, was to dog-like carnivirous marsupial with stripes on its back that lived on the Australian island state of for Tasmania before it was hunted down by farmers who blamed it killing sheep. The last known to tiger died in 1936.REUTERS/David Gray Mónica Garriga - Efe - Ideal/Photos: reuters/Melbourne the extinct tiger of Tasmania will revive in century XXI. A team of scientists has managed to reproduce individual genes of the legendary animal. The director of the Museum of Australia and the project, Mike Archer, explains that, if is able to clonar it, "he will be reintroducido in the forests of Tasmania and will be accustomed without problem, because has not changed much and because the instincts of the animal are such, come writings in the genetic material". In order to obtain their feat, the scientists have used an embryo of this small tiger-marsupial discovered in May of 1999 in a "miraculous bottle", that was put in a corner in the warehouse of the museum. Archer detailed that the sample was bottled in 1866 and used, instead of formol, alcohol, which has allowed to conserve the DNA of the unit in almost perfect conditions to be able to give back it to the life. In May of 2000, the Australian Museum revealed to have been able to extract weave of the heart and the liver of the embryo, and verified that it contained DNA of high quality. Months later, removed DNA from muscles and fémur of other units, the bony marrow of thylacinus conserved from 1893, and premolar of another gathered tasmano tiger in 1922. The different operations allowed to create a genetic library and, from there, to begin with the construction of the sequence of the DNA of the animal. To reproduce genes the last step consisted of reproducing the individual genes and has made possible to create million pure DNA copies in perfect conditions, that the scientists create can be developed in an alive cell. Archer indicated that they used the technique of "chain reaction of Polimerasa (RCP), a critical process in the production of amounts sufficient of DNA of the tiger of Tasmania to follow ahead with the investigation". "the next step is to produce great amounts of copies of all the genes of the Tiger of Tasmania to be able to use them in the attainment of synthetic chromosomes", adds Ahead will be to complete the sequence of the DNA and to identify a subrogated mother, who could be a marsupial of the family of ‘dasyuroideos’, probably the Demon of Tasmania, cousin brother of the tiger. Next it would be the fertilization and the birth of the young, and after the mother accepts it. "it will see Him ugly and rare, with rays, but in the others they are very similar to the rest of the marsupiales", explained Archer. If it has been arrived up to here it has been thanks to the financing of the television network Discovery Channel, that prepares next to the Museum of Australia documentary ‘Fin of the extinction: Clonación of the Tiger of Tasmania’, that one will emit in 155 countries next the 7 of July. Archer hopes that the resurrection of the Tiger of Tasmania happens in 2010, and that later the project continues with other extinguished animals. From being thus, it will be possible to be returned to contemplate alive to that carnivorous marsupial of brown coat with dark rays, whose last unit died in captivity in zoo of Hobart, capital of Tasmania, for 66 years. In spite of its size, because it got to measure from the end of the tail to the nose more of meter and means, era of timid character, and avoided the contact with the humans. After the authorities gave him by disappear, the tasmano tiger returned to Australia in legend form, and they even say that it has been sighted.
The return of the tiger of Tasmania It will be possible to be returned to contemplate alive to that carnivorous marsupial of brown coat with dark rays, whose last unit died in captivity in zoo of Hobart 66 years ago Australian Museum Professor Director Michael Archer looks AT an 1866 Tasmanian Tiger embryo and skeleton in Sydney May 28, 2002 that scientists have used to successfully replicate some of the animals genes using DNA extracted from the specimen. Scientists say they hope to clone to Tasmanian Tiger in 10 years if they plows successful in constructing large quantities of all the genes of the extinct animal and sequencing sections of the genome to create to genetic library of Tasmanian Tiger DNA. The animal, also known ace to thylacine, was to dog-like carnivirous marsupial with stripes on its back that lived on the Australian island state of for Tasmania before it was hunted down by farmers who blamed it killing sheep. The last known to tiger died in 1936.REUTERS/David Gray Mónica Garriga - Efe - Ideal/Photos: reuters/Melbourne the extinct tiger of Tasmania will revive in century XXI. A team of scientists has managed to reproduce individual genes of the legendary animal. The director of the Museum of Australia and the project, Mike Archer, explains that, if is able to clonar it, "he will be reintroducido in the forests of Tasmania and will be accustomed without problem, because has not changed much and because the instincts of the animal are such, come writings in the genetic material". In order to obtain their feat, the scientists have used an embryo of this small tiger-marsupial discovered in May of 1999 in a "miraculous bottle", that was put in a corner in the warehouse of the museum. Archer detailed that the sample was bottled in 1866 and used, instead of formol, alcohol, which has allowed to conserve the DNA of the unit in almost perfect conditions to be able to give back it to the life. In May of 2000, the Australian Museum revealed to have been able to extract weave of the heart and the liver of the embryo, and verified that it contained DNA of high quality. Months later, removed DNA from muscles and fémur of other units, the bony marrow of thylacinus conserved from 1893, and premolar of another gathered tasmano tiger in 1922. The different operations allowed to create a genetic library and, from there, to begin with the construction of the sequence of the DNA of the animal. To reproduce genes the last step consisted of reproducing the individual genes and has made possible to create million pure DNA copies in perfect conditions, that the scientists create can be developed in an alive cell. Archer indicated that they used the technique of "chain reaction of Polimerasa (RCP), a critical process in the production of amounts sufficient of DNA of the tiger of Tasmania to follow ahead with the investigation". "the next step is to produce great amounts of copies of all the genes of the Tiger of Tasmania to be able to use them in the attainment of synthetic chromosomes", adds Ahead will be to complete the sequence of the DNA and to identify a subrogated mother, who could be a marsupial of the family of ‘dasyuroideos’, probably the Demon of Tasmania, cousin brother of the tiger. Next it would be the fertilization and the birth of the young, and after the mother accepts it. "it will see Him ugly and rare, with rays, but in the others they are very similar to the rest of the marsupiales", explained Archer. If it has been arrived up to here it has been thanks to the financing of the television network Discovery Channel, that prepares next to the Museum of Australia documentary ‘Fin of the extinction: Clonación of the Tiger of Tasmania’, that one will emit in 155 countries next the 7 of July. Archer hopes that the resurrection of the Tiger of Tasmania happens in 2010, and that later the project continues with other extinguished animals. From being thus, it will be possible to be returned to contemplate alive to that carnivorous marsupial of brown coat with dark rays, whose last unit died in captivity in zoo of Hobart, capital of Tasmania, for 66 years. In spite of its size, because it got to measure from the end of the tail to the nose more of meter and means, era of timid character, and avoided the contact with the humans. After the authorities gave him by disappear, the tasmano tiger returned to Australia in legend form, and they even say that it has been sighted.
El regreso del tigre de Tasmania
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Se podrá volver a contemplar vivo a ese marsupial carnívoro de pelaje marrón con rayas oscuras, cuyo último ejemplar murió en cautividad en el zoo de Hobart hace 66 años
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Australian Museum Director Professor Michael Archer looks at an 1866 Tasmanian Tiger embryo and skeleton in Sydney May 28, 2002 that scientists have used to successfully replicate some of the animals genes using DNA extracted from the specimen. Scientists say they hope to clone a Tasmanian Tiger in 10 years if they are successful in constructing large quantities of all the genes of the extinct animal and sequencing sections of the genome to create a genetic library of Tasmanian Tiger DNA. The animal, also known as a thylacine, was a dog-like carnivirous marsupial with stripes on its back that lived on the Australian island state of Tasmania before it was hunted down by farmers who blamed it for killing sheep. The last known tiger died in 1936.REUTERS/David Gray
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Mónica Garriga - Efe - Ideal / Fotos: reuters / Melbourne
EL extinto tigre de Tasmania resucitará en el siglo XXI. Un equipo de científicos han logrado reproducir genes individuales del legendario animal. El director del Museo de Australia y del proyecto, Mike Archer, explica que, si consiguen clonarlo, «será reintroducido en los bosques de Tasmania y se acostumbrará sin problema, porque no ha cambiado mucho y porque los instintos del animal son los mismos, vienen escritos en el material genético».
Para lograr su hazaña, los científicos han utilizado un embrión de este pequeño tigre-marsupial descubierto en mayo de 1999 en un «frasco milagroso», que estaba arrinconado en el almacén del museo.
Archer detalló que la muestra fue enfrascada en 1866 y emplearon, en lugar de formol, alcohol, lo que ha permitido conservar el ADN del ejemplar en casi perfectas condiciones para poder devolverlo a la vida.
En mayo de 2000, el Museo Australiano reveló haber conseguido extraer tejido del corazón y el hígado del embrión, y comprobó que contenía ADN de alta calidad. Meses más tarde, sacaron ADN de músculos y del fémur de otros ejemplares, la médula ósea de un thylacinus conservado desde 1893, y un premolar de otro tigre tasmano recogido en 1922. Las diferentes operaciones permitieron crear una biblioteca genética y, desde ahí, comenzar con la construcción de la secuencia del ADN del animal.
Reproducir genes
El último paso consistió en reproducir los genes individuales y ha posibilitado crear millones de copias puras de ADN en perfectas condiciones, que los científicos creen pueden desarrollarse en una célula viva.
Archer señaló que emplearon la técnica de «reacción en cadena de la Polimerasa (RCP), un proceso crítico en la producción de cantidades suficientes de ADN del tigre de Tasmania para seguir adelante con la investigación».
«El próximo paso es producir grandes cantidades de copias de todos los genes del Tigre de Tasmania para poder utilizarlos en la consecución de cromosomas sintéticos», añade
Por delante quedará completar la secuencia del ADN e identificar una madre subrogada, que podría ser un marsupial de la familia de los ‘dasyuroideos’, probablemente el Demonio de Tasmania, primo hermano del tigre.
A continuación estaría la fertilización y el nacimiento de la cría, y después que la madre lo acepte. «Le verá feo y raro, con rayas, pero en lo demás son muy similares al resto de los marsupiales», explicó Archer.
Si se ha llegado hasta aquí ha sido gracias a la financiación de la cadena de televisión Discovery Channel, que prepara junto al Museo de Australia el documental ‘Fin de la extinción: Clonación del Tigre de Tasmania’, que se emitirá en 155 países el próximo 7 de julio.
Archer espera que la resurrección del Tigre de Tasmania ocurra en el año 2010, y que después el proyecto continúe con otros animales extinguidos. De ser así, se podrá volver a contemplar vivo a ese marsupial carnívoro de pelaje marrón con rayas oscuras, cuyo último ejemplar murió en cautividad en el zoo de Hobart, capital de Tasmania, hace 66 años.
A pesar de su tamaño, pues llegó a medir desde la punta de la cola hasta la nariz más de metro y medio, era de carácter tímido, y evitaba el contacto con los humanos. Después de que las autoridades le dieron por desaparecido, el tigre tasmano volvió a Australia en forma de leyenda, e incluso dicen que ha sido avistado.

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