Professor Gao Zexia's team has used the first generation of heterozygous (F0 generation) less stickleback obtained to breed Wuchang fish (Megalobrama amblycephala) fry (F1 generation) completely free of muscle spines through male and female mating, and is further carrying out stable breeding of muscle free stickleback genetics. According to the relevant procedures, the stickleback can be popularized on a large scale after the new germplasm characteristics are stable and the relevant national certification is obtained. Have you ever eaten seedless melons and seedless grapes? Now, the stickleback is also coming to the table. In the future, it may become a history that fish bones get stuck in the throat. Eating fish without being picky will become a standard diet. Recently, the team of Professor Gao Zexia from the School of Fisheries of Huazhong Agricultural University revealed the latest research progress on barberless fish: using the first generation of hybrid (F0 generation) less barbed fish that has been obtained to breed Wuchang (Megalobrama amblycephala) fry (F1 generation) without muscle spines through male and female mating, and is further carrying out stable genetic breeding of muscle free barbed fish (hereinafter referred to as barberless fish). According to the relevant procedures, the stickleback can be popularized on a large scale after the new germplasm characteristics are stable and the relevant national certification is obtained. How to make fish no longer have thorns? Where have all the barbs of the unarmed fish gone? In terms of taste, what is the difference between the taste of fish without gills and that of fish with gills? Besides Wuchang fish, can this research result be applied to other large freshwater fish? To this end, the reporter of Science and Technology Daily interviewed Professor Gao Zexia's team. Find the thorn and reveal the rule of fish muscle bone pricking. Megalobrama amblycephala, also known as Wuchang fish, is one of the major freshwater fish cultivated in China. The meat is delicious and full of flavor. As early as 2008, Gao Zexia's team carried out genetic breeding of blunt snout bream. At that time, the team focused on growth, disease resistance, hypoxia tolerance and other related traits. Since 2012, the team has begun to pay attention to the intermuscular spines, and the idea of changing the characteristics of the intermuscular spines of blunt snout bream has emerged. There are many intramuscular spines in Megalobrama amblycephala, which brings great inconvenience when eating. Moreover, the existence of intramuscular spines has limited the high-quality development of the seed industry and industry of Megalobrama amblycephala. During the breeding process of blunt snout bream, Gao Zexia's team collected data from many sources and learned that the intramuscular spines had a great impact on the food safety, production and processing value of blunt snout bream, as well as a variety of main cultured fishes at home and abroad. "Many members of the team, including me, have had the experience of eating Wuchang fish and getting stuck in the throat by fish bones," Gao Zexia said? How does the sting grow in different time periods? Finding the thorn became the first problem that Gao Zexia's team must understand. Gao Zexia's team made it clear that when the body length of Megalobrama amblycephala was about 1.33 cm, that is, about 20 days after it emerged from the membrane, the intramuscular spines began to appear, and the intramuscular spines grew from the tail to the head in turn through the methods of overall bone staining, morphological anatomy and X-ray transmission. This is the beginning of the research on the breeding of blunt snout bream without intramuscular spines. Gao Zexia's team found that the ossification order of the intramuscular spines of Megalobrama amblycephala was not accidental when they compared the fish of different swimming modes. The team's research results show that the swimming mode and the