Organismos modificados genéticamente
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New effort to clone an extinct animal - the Pyrenean Ibex

New effort to clone an extinct animal - the Pyrenean Ibex | Organismos modificados genéticamente | Scoop.it

The bucardo (Capra pyrenaica pyrenaica) was a sub-species of ibex, with distinct physical and genetic characteristics to other mountain goats inhabiting the Iberian Peninsula. It was perfectly adapted to life in its mountain habitat, and to survive the extreme cold and snow of winter in the Pyrenees.

 

Scientists in Spain have received funding to test whether an extinct mountain goat can be cloned from preserved cells. The bucardo became extinct in 2000, but cells from the last animal were frozen in liquid nitrogen. In 2003, a cloned calf was brought to term but died a few minutes after birth. Now, the scientists will test the viability of the female bucardo's 14-year-old preserved cells.

 

The bucardo, or Pyrenean ibex, calf born through cloning was an historic event: the first "de-extinction", in which a lost species or sub-species was resurrected. The Aragon Hunting Federation signed an agreement with the Centre for Research and Food Technology of Aragon (CITA) in Zaragoza to begin preliminary work on the cells from the last animal, named Celia.

 

One of the scientists behind the cloning effort, Dr Alberto Fernandez-Arias, told BBC News: "At this moment, we are not initiating a 'bucardo recovery plan', we only want to know if Celia's cells are still alive after having been maintained frozen during 14 years in liquid nitrogen."  In addition to this in vitro work, they will also attempt to clone embryos and implant them in female goats.

 

"In this process, one or more live female bucardo clones could be obtained. If that is the case, the feasibility of a bucardo recovery plan will be discussed," Dr Fernandez-Arias, who is head of the Aragon Hunting, Fishing and Wetlands Service, explained.

 

Even if the new effort succeeds in producing healthy clones, any future recovery plan for the bucardo would be fraught with difficulty - especially given the only frozen tissue is from a lone female.

 

One possible approach for bringing back the bucardo might be to cross a healthy female bucardo clone with a closely related sub-species - such as the Spanish ibex (Capra pyrenaica hispanica) or the Gredos ibex (Capra pyrenaica victoriae) - and then selectively breeding the offspring to enhance traits typical of the bucardo.

 

Several other possibilities could also be explored. For instance, researchers have been able to reverse the sex of female mouse embryos by introducing a key gene that makes


Via Dr. Stefan Gruenwald
Alba Calvo Bacaicoa's insight:

Indudablemente, la clonación en animales podría proponer numerosas ventajas, permitiría contar con muchas copias idénticas de animales que nos interesan por diversos motivos o por características quese han introducido gracias a tecnologías  de manipulación genética.

Pero por otro lado, la clonación animal presenta objeciones éticas. Las principales se refieren al impacto medioambiental que tendrían los animales clonados y a la propia supervivencia de la especie. La diversidad que proporciona la reproducción sexual es una ventaja desde el punto de vista biológico, ya que supone para la especie en su conjunto el contar con individuos variados que puedan adaptarse a las condiciones también diversas del entorno. 

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Questions and Answers on EU's policies on cultivation and imports of GMOs - EC (2013)

Questions and Answers on EU's policies on cultivation and imports of GMOs - EC (2013) | Organismos modificados genéticamente | Scoop.it

What is the current procedure for authorising the cultivation of GMOs?

 

Genetically Modified Organisms (GMOs) are authorised at EU level on a case-by-case basis following an application by a company... For more information on the authorisation procedures: http://ec.europa.eu/food/plant/gmo/authorisation/index_en.htm

 

Are any GMOs already cultivated in the EU?

 

Yes. There is one GM maize –MON 810– that is commercially cultivated in the EU. This product's genetic modification aims to protect the crop against a harmful pest – the European corn borer. It was authorised in 1998. In 2012, MON 810 was cultivated mainly in Spain (116,306 hectares), Portugal (9,278 hectares), Czech Republic (3,052 hectares), Romania (217 hectares) and Slovakia (189 hectares)... 

 

Have Member States already prohibited GMO cultivation?

 

Yes. Eight Member States (Austria, Bulgaria, Greece, Germany, Hungary, Italy, Luxembourg and Poland) adopted safeguard measures and prohibited the cultivation of the GM maize MON810 on their territories... All safeguard clauses submitted to EFSA have been declared scientifically unfounded.

 

Does it mean that the European Commission is in favour of the cultivation of Pioneer 1507? 

 

The Commission does not express an opinion in favour or against a particular GMO. The Commission is obliged as guardian of the Treaties to apply the existing legislation. It will be recalled that Directive2001/18/EC which is the basic act for this authorisation was adopted by the Council and the Parliament in 2001 to reinforce the framework for authorisation of GMOs for cultivation... 

 

What are the GM plants that are authorised in the EU for feed and/or food uses?

 

Besides cultivation, the placing on the EU market of GMOs and the use of their derived products in the food and feed chain is subject to an EU authorisation, conditioned by the demonstration of absence of risk for human and animal health and for the environment following a thorough assessment by the European Food Safety Authority. As of today, the list of 49 authorised GMOs for food and feed use includes 27 maizes, 8 cottons, 7 soybeans, 3 oilseed rapes, 1 sugar beet, 1 potato, 2 microorganisms. The list of authorised GM plants and the precise scope of their authorisation is available in the EU register of GM food and feed... http://ec.europa.eu/food/dyna/gm_register/index_en.cfm

 

http://europa.eu/rapid/press-release_MEMO-13-952_en.htm


Via Alexander J. Stein
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Alexander J. Stein's curator insight, November 6, 2013 8:32 PM

Quotes: "Are any GMOs already cultivated in the EU? Yes." "Besides cultivation... the use... in the food and feed chain is subject to an EU authorisation... list of 49 authorised GMOs for food and feed use." 

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Bruselas autoriza comercialización de dos combinaciones de maíz ... - Terra Colombia

Bruselas autoriza comercialización de dos combinaciones de maíz ... - Terra Colombia | Organismos modificados genéticamente | Scoop.it
Bruselas autoriza comercialización de dos combinaciones de maíz ...
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Una vaca modificada genéticamente produce leche hipoalergénica

Una vaca modificada genéticamente produce leche hipoalergénica | Organismos modificados genéticamente | Scoop.it
Daisy , creada en Nueva Zelanda, elimina una proteína que habitualmente produce las reacciones en bebés...

Via Javier López Martínez, Alba Sáez Moneo
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Alba Sáez Moneo's curator insight, November 15, 2013 4:17 PM

Esta noticia muestra uno de los avances conseguidos mediante la manipulación genética. En este caso, se trata de una mejora para la salud humana y no por un beneficio económico. Deben realizar más estudios para verificarlo pero de momento parece ser más eficaz que otras técnicas.

Mariluz Montañez Forero's curator insight, April 5, 2014 9:46 PM

En este artículo se reconocer un factor como es el de la modificación de los genomas en los animales que produzcan cambios en su composición, sexo, raza, atributos de los subproductos obtenidos del animal, etc que generen en el ecosistema daños o modificaciones, alterando comunidad biótica y ciclos biológicos.  Encontramos una causa al riesgo de asociado con la sustitución de unidades productivas tradicionales por unidades de alta tecnología y/o modificadas genéticamente.


Igualmente el departamento de Genética, Facultad de Medicina Veterinaria, Universidad de Lieja en el documento  BIOTECNOLOGÍA PARA EL MEJORAMIENTO GENÉTICO DEL GANADO Encontrado en internet en http://www.oie.int/doc/ged/D3010.PDF Consultado el 01/04/14, presenta como se genera riesgos el uso de transgénicos en animales.

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¿Qué son los Transgénicos? ¿Cómo dañan a los Seres Humanos?

¿Qué son los Transgénicos? ¿Cómo dañan a los Seres Humanos? | Organismos modificados genéticamente | Scoop.it
RT @MedellinStyle: ¿Qué son los Transgénicos? ¿Cómo dañan a los Seres Humanos? http://t.co/4Zgno0yJie

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New effort to clone an extinct animal - the Pyrenean Ibex

New effort to clone an extinct animal - the Pyrenean Ibex | Organismos modificados genéticamente | Scoop.it

The bucardo (Capra pyrenaica pyrenaica) was a sub-species of ibex, with distinct physical and genetic characteristics to other mountain goats inhabiting the Iberian Peninsula. It was perfectly adapted to life in its mountain habitat, and to survive the extreme cold and snow of winter in the Pyrenees.

 

Scientists in Spain have received funding to test whether an extinct mountain goat can be cloned from preserved cells. The bucardo became extinct in 2000, but cells from the last animal were frozen in liquid nitrogen. In 2003, a cloned calf was brought to term but died a few minutes after birth. Now, the scientists will test the viability of the female bucardo's 14-year-old preserved cells.

 

The bucardo, or Pyrenean ibex, calf born through cloning was an historic event: the first "de-extinction", in which a lost species or sub-species was resurrected. The Aragon Hunting Federation signed an agreement with the Centre for Research and Food Technology of Aragon (CITA) in Zaragoza to begin preliminary work on the cells from the last animal, named Celia.

 

One of the scientists behind the cloning effort, Dr Alberto Fernandez-Arias, told BBC News: "At this moment, we are not initiating a 'bucardo recovery plan', we only want to know if Celia's cells are still alive after having been maintained frozen during 14 years in liquid nitrogen."  In addition to this in vitro work, they will also attempt to clone embryos and implant them in female goats.

 

"In this process, one or more live female bucardo clones could be obtained. If that is the case, the feasibility of a bucardo recovery plan will be discussed," Dr Fernandez-Arias, who is head of the Aragon Hunting, Fishing and Wetlands Service, explained.

 

Even if the new effort succeeds in producing healthy clones, any future recovery plan for the bucardo would be fraught with difficulty - especially given the only frozen tissue is from a lone female.

 

One possible approach for bringing back the bucardo might be to cross a healthy female bucardo clone with a closely related sub-species - such as the Spanish ibex (Capra pyrenaica hispanica) or the Gredos ibex (Capra pyrenaica victoriae) - and then selectively breeding the offspring to enhance traits typical of the bucardo.

 

Several other possibilities could also be explored. For instance, researchers have been able to reverse the sex of female mouse embryos by introducing a key gene that makes


Via Dr. Stefan Gruenwald
Alba Calvo Bacaicoa's insight:

Indudablemente, la clonación en animales podría proponer numerosas ventajas, permitiría contar con muchas copias idénticas de animales que nos interesan por diversos motivos o por características quese han introducido gracias a tecnologías  de manipulación genética.

Pero por otro lado, la clonación animal presenta objeciones éticas. Las principales se refieren al impacto medioambiental que tendrían los animales clonados y a la propia supervivencia de la especie. La diversidad que proporciona la reproducción sexual es una ventaja desde el punto de vista biológico, ya que supone para la especie en su conjunto el contar con individuos variados que puedan adaptarse a las condiciones también diversas del entorno. 

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El maíz transgénico: principio precautorio (I)

Desde que se produjo la primera planta transgénica en 1983 y desde que Monsanto en 1986, crea la primera planta genéticamente modificada, se produce también una gran incertidumbre ampliamente generali...

Via Alba Sáez Moneo
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Alimentos Genéticamente Modificados: ¿Serán Seguros de Consumir? | Salutem: Nutrición, Dieta y Salud Paleolítica.

Alimentos Genéticamente Modificados: ¿Serán Seguros de Consumir? | Salutem: Nutrición, Dieta y Salud Paleolítica. | Organismos modificados genéticamente | Scoop.it
Dieta paleolítica encontrarás artículos sobre nutrición y salud que te llevan a tu estado natural. Venta productos orgánicos naturales.

Via Teresa Lopez Alvarez-Ossorio
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