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北美地区第一匹克隆小马驹诞生(图)
http://www.sina.com.cn 2005/04/29 14:28  国际在线

  A team of French and American researchers has successfully cloned a horse, Texas A&M University officials announced Wednesday. The foal was named Paris Texas.

  The university believes it's the first successful cloned horse in North America; horses have previously been cloned in Italy.

  "Look at him, he's gorgeous," Katrin Hinrichs, the lead scientist on the project said just before the six-week-old, light brown foal made his public debut. He whinnied and walked up to several photographers who snapped his picture.

  "He's very bold," said Hinrichs, a professor at Texas A&M's College of Veterinary Medicine. She also heads the school's Equine Embryo Laboratory.

  A&M researchers used adult horse skin cells biopsied from a valuable horse in Europe to clone the foal, born March 13. The process took 400 attempts over a four-month period.

  Six embryos were created but only one was successfully gestated in a host horse named Greta during a pregnancy that lasted 12 1/2 months. Horses usually have an 11-month gestation.

  Cryozootech, A&M's Paris-based partner, is dedicated to preserving the genes of exceptional horses for their use in producing cloned offspring, though there are no guarantees Paris Texas will turn out exactly the same as the donor horse.

  The first cloned cat was born at the school Dec. 22, 2001. Since then, the university has cloned several litters of pigs, a Boer goat, a disease-resistant Angus bull, the first Brahma bull and a deer.

北美地区第一匹克隆小马驹诞生(图)

  美国得克萨斯农工大学4月27日宣布,一个由美国和法国科学家组成的研究小组最近已经成功克隆出一匹名为巴黎-得克萨斯的小马驹。

  据美联社4月27日报道,得州农工大学认为,这是北美地区第一匹成功克隆出的马驹。在这之前,意大利曾经成功进行过马的克隆研究。

  为了克隆了这匹小马,得州农工大学的研究人员从一匹成年良种马身上获取了表皮细胞。这次克隆历时4个月的时间,经过了400次尝试,。在克隆过程中,科学家一共制造出了6个胚胎,但最终只有一个胚胎在一只名为格丽塔的马体内孕育成功。在经过了长达12.5个月的怀孕期后,巴黎·得克萨斯终于在今年3月13日降生,而通常马的怀孕期为11个月左右。

  现在,巴黎-得克萨斯已经6个星期大了。在这匹浅棕色的小马首次和公众见面前,该研究项目的负责人、得州农工大学兽医学院的卡特琳-辛里克斯教授表示,“你看它,真是漂亮极了”。

  在克隆过程中,得州农工大学这个项目的合作者——法国Cryozootech克隆技术公司则致力于对研究者使用的特别的马的基因进行保护。不过它没有担保说,巴黎-得克萨斯将会和捐赠马完全相同。

  报道说,2001年12月22日,第一只克隆猫在得州农工大学诞生。从此以后,该大学陆续克隆出了猪、羊和鹿等动物。(文/王高山)


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