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 convenience in food preparation [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: Consumer Concerns and Testing - Concerns regarding the growth characteristics and flavor differences between bone-free and normal fish have been addressed through rigorous testing, showing no significant differences in growth performance and flavor under the same farming conditions [4]. - The research team conducted tests in various farming scenarios, including pond, cage, and indoor factory farming, to ensure the viability of the new fish varieties [4]. Group 3: Future of Production and Regulation - The promotion of these new fish varieties will require strict experimental evaluations and the establishment of national regulations regarding genetically modified organisms before they can be commercially produced [5]. - The advancement of molecular precision breeding technology is expected to enhance the economic traits of aquaculture, leading to increased production and income [5].