基于专利数据的植物抗逆境胁迫基因研究态势分析

Analysis about Research Status of Plant Stress-resistance Gene Based on Patent Data

植物抗逆境胁迫基因研究对转基因新品种培育有着重要的意义。利用"智农361"农业知识产权专题数据库,系统采集整理了1989-2013年间的抗逆境胁迫基因研究相关的专利文献,应用专利计量统计、词共现、社会网络等分析方法,采用Bibexcel、Citespace和Vosviewer等工具,分别从专利申请量及年度变化、专利权人、关键词和德温特手工代码等角度深入分析了抗逆境胁迫基因专利的动态发展趋势、优势单位及其竞争态势、研究热点和重点技术领域。研究结果显示,该领域相关专利申请从1989年以来呈现快速上升的趋势,尤其从2000年开始进入加速增长期;优势单位主要集中在中国高校、科研机构和美国、德国的跨国企业,并呈现出强弱联合、强强对抗的竞争态势;专利的研究热点主要集中在水稻、抗旱、抗盐、转录因子等领域;专利技术的发展以核酸序列、蛋白质序列的研究为基础,同时在植物对象、胁迫类型和胁迫忍耐机理研究上呈现出分支细化的趋势。

Studies on plant stress-resistance gene have great significance for transgenic breeding.This study collected the patent literatures related to plant stress-resistance gene research from 1989 to 2013 in IPA361 patent database,and analyzed the patent application quantity,its annual changes,patentee,keyword and Derwent Manual Code using methods of patentometrics,word co-occurence,social network and tools of Bibexcel,Citespace and Vosviewer,etc.to figure out the dynamic trend,advantage unit and its competitive situation,research hotspots and key technological fields.The results showed that the related patent application grew rapidly since 1989,and entered into a period of accelerated growth after 2000.The predominant patentees were universities,scientific research institutes in China and transnational enterprises from USA and Germany.A competitive situation was presented as alliance between unequal players,and rivalries between strong ones.The research hotspots on patent were mainly focused on rice,drought resistance,salt resistance and transcription factor,etc.The development of patent technology was based on studying nucleotide sequence and protein sequence.At the same time this study showed the tendency of refining the branches in plant objects,stress types and stress tolerance mechanism.