Group 1 - The core achievement of the "Seed Special" is the development of innovative seed varieties, such as the hybrid silver crucian carp, which addresses consumer concerns about fish bones [1] - The "Seed Special" aims to establish a self-reliant and leading scientific system in seed technology, focusing on higher yield, better nutrition, water conservation, and disaster resistance [1] - The initiative was launched in November 2019 to address strategic needs for food security in China, focusing on breeding key crops like rice and wheat [1] Group 2 - The "Zhongke Fa" series of rice has become a star variety, with "Zhongke Fa 5" yielding over 20% more than local varieties in Northeast China and achieving a yield of over 600 kg per mu in saline-alkali land [2] - The "Zhongke Fa Early Jing 1" variety has advanced the market availability of high-quality new japonica rice by 2 to 3 months in southern double-cropping rice areas [2] - The initiative has successfully created 37 leading varieties, promoting new crop varieties across 14.48 million mu, resulting in significant social and economic benefits [2] Group 3 - The successful implementation of the "Seed Special" is a practical example of addressing national needs and leveraging a new type of national system to enhance agricultural technology [3]

Core Insights - The "Seed Precision Design and Creation" project by the Chinese Academy of Sciences has made significant advancements, particularly with the development of the hybrid silver crucian carp, which addresses consumer concerns about fish bones [1] - The project aims to establish a self-sufficient and leading seed science system to enhance agricultural productivity and food security in China [1][3] Group 1: Achievements in Crop Breeding - The "Zhongke Fa" series of rice, led by Li Jiayang, has become a "star variety," with "Zhongke Fa No. 5" yielding over 20% more than local premium varieties in Northeast China and achieving a yield of over 600 kg per mu in saline-alkali land [2] - In the southern double-cropping rice areas, "Zhongke Fa Early Jing No. 1" has achieved a breakthrough, allowing for the early market release of high-quality new rice by 2 to 3 months [2] - The project has developed a nitrogen-efficient gene that allows rice to maintain stable yields with a 20% to 30% reduction in nitrogen fertilizer, promoting green farming practices [2] Group 2: Disease Resistance and Economic Impact - The research team has identified the broad-spectrum disease resistance gene Pm24, leading to the development of the high-yield, disease-resistant wheat variety "Zhongke 166," which has been promoted over 1.5 million mu, significantly reducing pesticide use [2] - The core objective of the project is to achieve a 10% to 20% increase in yield, a 15% to 20% reduction in input, and a 15% to 20% reduction in losses for plant and animal varieties, with 37 leading varieties created and 14.48 million mu of new crop varieties promoted [2]

Core Viewpoint - The research team led by academician Gui Jianfang from the Chinese Academy of Sciences has developed a breeding technology system that creates a new candidate variety of silver crucian carp with high yield, disease resistance, and feed efficiency, while also eliminating the presence of small bones in the fish [1][2] Group 1: Breeding Technology and Innovations - The new breeding technology utilizes "molecular scissors" to edit the genetic code that controls the growth of small bones, significantly reducing their occurrence [1] - The candidate variety "Zhongke No. 6" shows substantial improvements in growth rate, survival rate in aquaculture, and feed utilization efficiency [1] - The breeding system is designed to produce sterile fish, preventing them from reproducing in natural environments, thus ensuring ecological safety [1] Group 2: Implications for Food Security and Agriculture - The innovations aim to enhance national food security and modernize agriculture, providing a strong foundation for China's agricultural development [2] - The advancements mark a shift in agricultural breeding from traditional methods to a more predictable and programmable "precision design" era [1]