央广网北京12月22日消息（记者朱敏）据中央广播电视总台中国之声报道，中国科学院22日在北京举行A类先导专项"种子精准设计与创造"系列科研成 果新闻发布会，系统展示了专项通过创建精准设计育种新范式，在打造种业振兴的"中国芯"方面取得的系列突破。中国科学院联合院内外30家优势单位协同 攻关，聚焦水稻、小麦等主要农作物和鱼等动物，以实现"一增二减"，也就是增产提质、减投提效、减损促稳为核心目标，最终实现精准创造增产 10%~20%、减投15%~20%和减损15%~20%的动植物品种。近年来，哪些动植物品种取得了重要突破？ 水稻和小麦是我国两大主粮。然而，这类农作物的种植始终面对化肥过量、病虫害频发、资源约束趋紧等农业"痛点"。我国科学家们以"精准设计"为路 径，找到了破局的关键"钥匙"。中国科学院院士、中国科学院植物研究所研究员种康介绍，我国研究人员找到了一种让水稻"减肥"不减产的方法。 种康表示："我们找到了氮高效模块的方法，就是在低氮情况下，能够使水稻CP19H型的模块很好地控制。那么，它是一个负调控因子，它减少了，就 能大大地促进一些穗子的形成分蘖。因此，和它的L型，也就是低效率相比，有非常明显区别。" 研 ...

Core Insights - The article discusses the significant opportunities presented by artificial intelligence (AI) and robotics in the transition to precision agriculture, which can enhance crop yields, reduce costs, and promote sustainability [3][8] - A research team from China has developed a novel approach that integrates biotechnology and AI, proposing the concept of crop-robot co-design to overcome challenges in hybrid breeding [4][9] Group 1: Research Highlights - The research published in the journal Cell introduces the world's first intelligent breeding robot, GEAIR, capable of automated cross-pollination, which significantly lowers breeding costs and shortens breeding cycles [4][8] - The team utilized genome editing to redesign flower morphology, creating male-sterile tomato plants with exposed stigmas, facilitating robot-assisted pollination [8][9] - The GEAIR system can achieve automated F1 hybrid breeding with efficiency comparable to manual pollination, aiding in the rapid development of climate-resilient and flavorful crops [8][11] Group 2: Technological Innovations - Genome editing of ABC model genes allows for the production of male-sterile flowers with exposed stamens in tomatoes and soybeans, potentially revolutionizing robotic hybrid breeding [9] - AI-driven robots simplify the process of cross-pollination, enhancing the efficiency of hybrid breeding [9] - The integration of biotechnology with AI-based robotics addresses bottlenecks in rapid crop breeding, providing solutions for sustainable precision agriculture [9][11]

Core Insights - The 2025 World Agricultural Technology Innovation Conference (WAFI) opened in Beijing, focusing on building a resilient food supply system and fostering global agricultural cooperation [1][3][4] Group 1: Conference Overview - The conference gathered nearly 800 participants from around 100 countries, including renowned scientists, educators, and entrepreneurs in the agricultural sector [1][3] - The event is co-hosted by several prominent organizations, including China Agricultural University and the International Agricultural Research Consultative Organization, and features a comprehensive framework of activities [3][4] - The World Agricultural Technology Expo, held concurrently, covers an exhibition area of approximately 10,000 square meters with over 150 exhibitors [4] Group 2: Global Agricultural Cooperation - China has established bilateral agricultural technology dialogue mechanisms with over 60 countries and regions, contributing to global food security and governance [4][5] - Experts from various countries expressed their eagerness to deepen agricultural cooperation with China, highlighting the value of shared technological advancements [5][6] Group 3: Technological Advancements - Enhancing agricultural productivity is crucial for building a resilient food supply system, with a focus on modern agricultural practices and technologies [6][7] - The conference emphasized the importance of AI and modern technologies in addressing global food system challenges, including climate change and resource degradation [6][7][8] - The release of the Shennong Big Model 3.0 by China Agricultural University marks a significant advancement in agricultural AI, providing comprehensive agricultural knowledge and decision-making support [9]

Core Insights - The 2025 World Agricultural Technology Innovation Conference (WAFI) opened in Beijing, focusing on "Practicing the Big Food Concept and Building a Resilient Food Supply System" with nearly 800 participants from around 100 countries and regions discussing global agricultural technology issues [1][2] Group 1: Conference Overview - The conference has gained significant influence since its inception in 2023, serving as a high-end platform for international cooperation and innovation in agricultural technology [2] - The event is co-hosted by several prominent organizations, featuring a comprehensive framework that includes an opening ceremony, seven thematic meetings, a World Agricultural Technology Expo, and over 40 parallel meetings and international exchange activities [2] - The expo covers approximately 10,000 square meters with over 150 exhibitors, showcasing various national and international agricultural innovations [2] Group 2: Global Cooperation and Challenges - Kenneth Quinn, Honorary Chairman of the World Food Prize Foundation, emphasized Asia and China as key players in addressing global food security challenges, projecting a global population of 10 billion by 2049 [3] - Experts from various countries expressed a desire to deepen agricultural cooperation with China, highlighting the value of the WAFI as an international exchange platform [3][4] Group 3: Technological Advancements - Enhancing agricultural productivity is crucial for building a resilient food supply system, with calls for increased international agricultural technology cooperation and investment in developing countries [5] - The conference highlighted the importance of modern technologies such as genome editing, AI, and machine learning in addressing global food system challenges [5][6] - The release of the Shennong Model 3.0 by China Agricultural University marks a significant advancement in agricultural AI, providing comprehensive agricultural knowledge and decision-making capabilities [7]

分组1 - Editas Medicine reported a quarterly loss of $0.63 per share, which was worse than the Zacks Consensus Estimate of a loss of $0.41, representing an earnings surprise of -53.66% [1] - The company posted revenues of $3.58 million for the quarter ended June 2025, exceeding the Zacks Consensus Estimate by 320.94%, compared to revenues of $0.51 million in the same quarter last year [2] - Editas shares have increased approximately 73.2% since the beginning of the year, significantly outperforming the S&P 500's gain of 8.4% [3] 分组2 - The current consensus EPS estimate for the upcoming quarter is -$0.39 on revenues of $0.85 million, and for the current fiscal year, it is -$1.93 on revenues of $11.24 million [7] - The Medical - Biomedical and Genetics industry, to which Editas belongs, is currently ranked in the bottom 43% of over 250 Zacks industries, indicating potential challenges for stock performance [8]

Group 1 - The article highlights a revolutionary breakthrough in genome editing technology, specifically a new programmable technique for precise manipulation of large DNA segments at the chromosomal level, which can edit DNA from thousands to millions of base pairs [1] - This new technology significantly enhances the scale and capability of manipulating eukaryotic genomes, providing new pathways for crop trait improvement and treatment of genetic diseases [1] - In the field of genetic disease treatment, this technology is expected to offer new therapeutic approaches for diseases caused by chromosomal abnormalities [1] Group 2 - The breakthrough in precise chromosomal editing technology is anticipated to accelerate the construction of artificial chromosomes, presenting important application prospects in emerging fields such as synthetic biology [1] - Relevant concept stocks in the A-share market include Xin Kai Yuan and Bei Rui Ji Yan, which are associated with this new technology [1]

分组1 - Qiagen reported quarterly earnings of $0.6 per share, matching the Zacks Consensus Estimate, and showing an increase from $0.57 per share a year ago [1] - The company posted revenues of $533.54 million for the quarter ended June 2025, exceeding the Zacks Consensus Estimate by 1.80%, and up from $496.35 million year-over-year [2] - Qiagen has surpassed consensus revenue estimates four times over the last four quarters [2] 分组2 - The stock has gained approximately 9.7% since the beginning of the year, outperforming the S&P 500's gain of 7.6% [3] - The current consensus EPS estimate for the upcoming quarter is $0.58 on revenues of $517.95 million, and for the current fiscal year, it is $2.35 on revenues of $2.06 billion [7] - The Zacks Industry Rank for Medical - Biomedical and Genetics is currently in the bottom 43% of over 250 Zacks industries, indicating potential challenges for stock performance [8]

Core Viewpoint - The research team from the Chinese Academy of Sciences has developed a novel programmable chromosome-level large segment DNA manipulation technology called PCE, which enables precise editing of DNA from thousands to millions of base pairs, representing a significant breakthrough in the field of genetic engineering [2][3]. Group 1: Technological Breakthroughs - The PCE technology addresses the core challenge of precise manipulation of large segment DNA, which has been a limitation of existing tools in terms of efficiency, scale, precision, and diversity [3]. - The research team has created two programmable chromosome editing systems, PCE and RePCE, which allow for precise and seamless manipulation of ultra-large segment DNA [3][5]. - Innovations include a high-throughput recombination site rapid modification platform and an AI-based optimization of Cre recombinase, which enhances editing efficiency by 3.5 times [5]. Group 2: Applications and Implications - The new technology has the potential to revolutionize crop trait improvement and genetic disease treatment by enabling precise genomic structural variations [6]. - In traditional breeding, desirable traits are often linked with undesirable genes; the new method can help decouple these traits, enhancing breeding strategies [6]. - The technology has already been successfully applied to create herbicide-resistant rice with a precise inversion of 315 kilobases [7].

Core Insights - The article discusses a revolutionary breakthrough in genome editing technology, specifically the development of a new programmable chromosome-level DNA manipulation technique called PCE, which enables precise editing of DNA segments ranging from thousands to millions of base pairs [1][2]. Group 1: Technology Development - The research team has developed two programmable chromosome editing systems, PCE and RePCE, which allow for precise manipulation of ultra-large DNA segments, effectively addressing the "scale dilemma" in genome editing [2]. - The team has achieved three key technological innovations to enhance the capabilities of ultra-large DNA precise editing [2][3]. Group 2: Technical Innovations - The first innovation involves changing the "double-gate" system to a "single-channel" system to overcome the reversibility issue of recombination reactions caused by the inherent symmetry of Lox sites, creating a new type of Lox variant that facilitates targeted editing [2]. - The second innovation utilizes artificial intelligence to optimize the Cre recombinase, resulting in a 3.5-fold increase in recombination efficiency, thereby enhancing the overall effectiveness of the editing process [3]. - The third innovation is the development of the Re-pegRNA strategy, which acts like a smart eraser to precisely identify and eliminate residual sites that could interfere with the accuracy of genome editing [3]. Group 3: Applications and Implications - The new ultra-large DNA precise editing method is expected to open new pathways for crop trait improvement and genetic disease treatment by manipulating genomic structural variations [4]. - In traditional breeding, desirable traits are often linked with undesirable genes, but the breakthrough in large segment DNA editing could lead to new breeding strategies that control fertility and eliminate linked burdens, maximizing the breeding potential of wild germplasm resources [4]. - The research team has successfully created a rice variety with a precise inversion of 315 kilobases that is resistant to herbicides, showcasing the practical application of this technology [4].

Core Viewpoint - The article discusses the development of a novel circular RNA-mediated inverse prime editing system (ciPE) that significantly enhances the efficiency and precision of genome editing, presenting a promising tool for disease modeling and gene therapy [2][3][11]. Group 1: Development of ciPE System - The research team developed an inverse prime editor (iPE) system using nCas9-D10A, but it initially showed limited editing efficiency, with a maximum of 8.6% [5]. - To address the low efficiency, the team designed a circular RNA (circRNA)-mediated inverse prime editor (ciPE), leveraging the unique properties of circRNA to improve editing efficiency [6]. - The ciPE editor achieved a significant improvement in editing efficiency, ranging from 0.1% to 24.7% [7]. Group 2: Enhancements with Rep-X - The introduction of a modified 3'→5' helicase, Rep-X, as a co-factor further increased the reverse editing efficiency to between 2.7% and 55.4% [7]. - The Rep-X assisted ciPE system was compared with existing prime editing systems, showing several-fold to over a hundred-fold improvements in editing efficiency at specific sites [10]. Group 3: Applications and Advantages - The ciPE system demonstrated reverse gene editing efficiencies of 13.3% for the BRCA1 gene and 9.5% for the RPE65 gene, outperforming PAMless PE and TwinPE systems [10]. - The study confirmed that the Rep-X assisted ciPE system has a higher editing purity compared to PAMless PE and TwinPE systems, indicating greater precision and safety in gene editing applications [11].