Cat cloning technology has been breakthrough "safe" healthy survival
Last Update: 2021-01-23
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January 14, the reporter learned from Qingdao Agricultural University, the school's School of Life Sciences, Dr. Zhao Minghui team through the attack, successfully obtained the forest cat body cell cloning offspring, the university became The first in China to successfully complete the cat soda cell cloning university.
reporter in the laboratory located on the 6th floor of the school's biological building saw a black-and-white kitten in a warm thermostat, sleeping, looking very healthy. The cloned cat was born on December 24, 2020 and weighed 75 grams, the researchers told reporters. As a result of the research of cloning technology, the cloned cat survived safely and healthy.
, the project's host, told reporters that the current surrogate mother cat and "peaceful" physiological indicators are normal performance. The nature of this cloned cat is an adult female forest cat hybridized between a wild forest cat and a Chinese pastoral cat. The researchers isolated and cultured fibroblasts from the cat's skin tissue, took the Chinese pastoral cat egg as a nucleus subject, and produced multiple solibo cell cloned embryos through cell nuclear replacement and artificial activation. After transplanting the cloned embryo to the recipient female cat, after 62 days of breeding, a forest cat body cell was successfully cloned. At present, the project has been identified by the Beijing Zhongzheng Judicial Laboratory, identified the forest cat as a cloned individual.
Zhao Minghui, Qingdao Agricultural University's cat cloning research project began in July 2020, team members streamlined and improved somogenetic cell cloning methods, so that the entire experimental process from the traditional 36 hours to 5 hours, the time reduced by 7 times. At the same time, the team adopted the operation method of using only one culture fluid in the whole process of the experiment, avoiding the embryo damage that frequent change of culture fluid may bring, greatly reducing the operational risk and improving the stability of the experiment. This batch of experiments produced a total of 89 sorocyte cloned embryos, transplanted into 7 surrogate female cats, of which 3 surrogate female cats pregnant, pregnancy rate of 43%, the world's leading level.
reporter learned that the breakthrough in cat cell cloning technology is not only conducive to promoting the development of animal disease models and drugs, in the field of biomedical research, the pet industry and endangered species protection play an important role. According to data released by the International Union for Conservation of Nature, three of China's 21 species of wild cats are endangered, two are in critical condition and seven are in a critical or near-dangerous state. The infertability of animals in old age means the functional extinction of the species. The use of cat eggs for allogeneic cell cloning technology is currently the only technical means to replicate endangered animals in large numbers.
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