The researchers used gene-editing techniques to "cut" a number of large yellow 颡 fish

, Nanjing, April 21 (Reporter Zhang Wei) northerners love to eat the yellow spicy Ding, southerners like to eat the ang tingling fish, in fact, arefish. However, small, low meat yield, slow growth offish really let the eaters wait anxiously. On the 21st, the reporter learned from Nanjing University that the
Li Kaibin Task Force of the Pearl River Aquatic Research Institute of China, in cooperation with Zhao Qingshun Of the Institute of Model Zoology and Nanjing Shunyu Biotech Co., Ltd., successfully cultivated the new yellowfish with fast birth, high meat quality and large specifications using gene editing technology. This is the first time in the world that the gene knockout of aquaculture fish has been achieved, and the results have been published in the journal Aquaculture.
yellowis a high-quality high-grade economic fish, for the Ministry of Agriculture, one of the top ten recommended aquaculture species. Using the first generation of genomic editing technology, zinc refers to nuclease technology, the researchers successfully knocked out the muscle growth inhibitor (hereinafter referred to as myosin) gene of jaundial fish.
of fish that are missing from myocardial inhibition can be directly distinguished by the appearance esopter. The muscle tissue of the new yellowfish grows efficiently, and by the age of 30, a distinct bicep esopterial pattern begins to appear, which is manifested in the formation of two distinct muscle groups between the head and dorsal fin, and becomes more pronounced as the age increases. On the 80th and 210th days, the weight increased by 27 to 37 per cent compared to the wild type of compatriots, respectively.
gene is an important gene that controls the growth of animals. A variety of targeted breeding of good breeds of home-breeding animals, such as cattle,
and dogs, all carry spontaneous mutations in the myosin gene. The animals carrying these spontaneous mutations showed a "bimus" esoteric, with a significant increase in muscle content compared to the normal lineage of myocardial inhibition genes.
Unlike traditional
techniques, genome editing achieves the same targeted genetic mutations as natural gene spontaneous mutations, both of which are reflected in the absence or addition of nucleotides at the genomic level, which have a much smaller impact on genes than is acceptable, including hybrid breeding, radiation breeding, and space breeding, which destroy the genome of a species.