【科技日报】分子精准育种技术破解“吃鱼怕刺”难题

Core Viewpoint - The Chinese Academy of Sciences has showcased breakthroughs in precision breeding technology, particularly in the development of a new variety of fish that eliminates intermuscular bones, addressing consumer demands for convenience in fish consumption [1][2]. Group 1: Breakthroughs in Precision Breeding - The research teams have developed a new variety of fish, the "bone-free" silver crucian carp, which addresses the common issue of intermuscular bones in freshwater fish [2][3]. - The research identified the key regulatory gene runx2b responsible for the development of intermuscular bones in fish, leading to the creation of the world's first bone-free varieties of fish [3]. Group 2: Testing and Evaluation - The research team conducted extensive tests in various farming scenarios, including pond, cage, and indoor factory farming, confirming that the growth performance and flavor of bone-free fish are comparable to their normal counterparts under the same conditions [4]. - The team emphasizes the importance of ensuring that the genetic modifications do not adversely affect the growth characteristics or nutritional content of the fish [4]. Group 3: Future Prospects and Regulations - The application of molecular precision breeding technology in aquaculture is expected to enhance genetic improvements for economic traits, leading to increased production and income [5]. - Despite the promising research results, the commercial promotion of these new varieties will require rigorous experimental evaluations and the establishment of national regulations regarding genetically modified species [5].