Gene editing short -tailed fine hair sheep's new species is the first successful quality

The short -tailed fine -tailed sheep (left) edited by the gene is compared with the long -tailed fine sheep (right) that has not been genetically edited. Pomegranate/Xinjiang Daily reporter Ma Yiyu

Pomegranate/Xinjiang Daily (Reporter Ma Yiyu reported) On August 7, the reporter learned from the Xinjiang Institute of Animal Husbandry Sciences that a breakthrough progress has been made in the research on the creation of new types of sheep's new variety resources cooperated by China Agricultural University and the Xinjiang Institute of Animal Husbandry Sciences- Gene editing short -tailed fine hair sheep's new species has been successful.

It is understood that after 5 years of experimental research, the research team explored the chromosomal evolution mechanism of wild and domestic sheep. Through genetic association analysis, a number of important functional genes and mutations related to important phenotypes, such as weight, body height, bust, hip, and tail length are found. These genes and mutations provides new candidate genes for the innovation of sheep species, especially the TBXT gene mutations that affect the length of the sheep and the tail vertebrae, which provides precious genetic resources for the cultivation of short -tailed cotton sheep.

Professor Li Menghua of the School of Animal Science and Technology of China Agricultural University said that although the variety of sheep in my country is rich, its main production properties such as meat, hair, milk, etc. are low. Good meat and milk breeding sheep still need to be imported, which restricts the sheep industry in my country. The development and the revitalization of the seed industry. Therefore, the genetic foundation of the changes in these phenotypes will be revealed, and the new genes related to the relevant new genes will provide rich genetic resources for the quality innovation and new varieties of sheep species.

The research team of Professor Li Menghua of China Agricultural University and the Xinjiang Academy of Animal Husbandry Sciences is doing experimental analysis. Pomegranate/Xinjiang Daily reporter Ma Yiyu

According to Liu Mingjun, director of the Institute of Biotechnology of the Xinjiang Academy of Animal Husbandry Sciences, the tail length is one of the significant characteristics of the breed of sheep. Therefore, the long -tailed sheep must be broken during the lamb stage, which not only consumes manpower and material resources, but also causes trauma to cause fly maggots infection, resulting in blocking or even death. Therefore, cultivating excellent short -tailed sheep varieties that do not require broken tails are one of the goals of the world sheep breeding.

On the one hand, the research team uses the newly discovered TBXT gene mutation to conduct short -tail selection of grassland meat sheep breeding core groups currently carried out in Yili, Xinjiang, significantly reduced the length of the tail, and establishes molecular selection technology and breeding for the cultivation of short -tailed meat sheep sheep sheep sheep sheep sheep sheep sheep sheep sheep. Core group; on the other hand, using gene editing this cutting -edge biochemical technology to edit TBXT gene editing of fine hair sheep, obtain gene editing short -tailed fine hair sheep, and set up genetic editing short -tailed fine sheep breeding resource groups to cultivate Short -tailed fine hair sheep created precious germplasm resources.

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