中生代晚期阿纽蝎蛉亚目昆虫与宿主植物的协同进化研究

传粉昆虫对植物繁衍十分重要，同时植物也为昆虫提供食物及生长环境，两者在漫长的生物演化历史中形成了稳定的协同进化关系，只有对早期传粉昆虫开展研究才能全面解析虫媒传粉的起源与演化规律。中生代晚期传粉昆虫类群丰富且与宿主植物相互作用关系复杂，目前多数研究仅限于经典分类层面，定量统计及全面系统发育分析尚未开展。本项目以产自我国东北地区的阿纽蝎蛉亚目（长翅目）昆虫为研究对象，通过系统发育分析方法，探索吸收式口器的起源与演化模式。结合定性的功能形态学分析及定量的几何形态学分析，研究宿主植物繁殖器官与昆虫吸收式口器的适应性进化。结合形态结构的间接证据及虫体粘附孢粉的直接证据，对比现生昆虫的传粉模式，将吸收式口器昆虫与特定的宿主植物匹配。项目研究成果对解析阿纽蝎蛉亚目昆虫与宿主植物关系有重要意义，为当前探究传粉昆虫与植物的协同进化、昆虫与环境的相互作用及相应传粉模式的演化提供了可靠的理论证据。

Pollinating insects are very important for plant reproduction, and plants also provide food and habitat for insects. They have formed a stable co-evolutionary relationship in the long period of biological evolution, and only by studying early pollinators can fully understand the origin and evolution of insect pollination. The late Mesozoic pollinating insects are abundant and have complex interactions with host plants, most current studies are limited to classical taxonomy, however quantitative statistics and comprehensive phylogenetic analysis have not been carried out. This project takes the late Mesozoic Aneuretopsychina from the Northeastern China as research subjects, and using phylogenetic analysis explored the origin and evolution model of siphoning proboscis. The qualitative functional morphological analysis and quantitative geometric morphological analysis were used to study the adaptive evolutionary relationship between host plant reproductive organs and insect siphoning proboscis. Combining the indirect evidence of morphological structure and the direct evidence of pollen, the pollination patterns of modern insects were compared, and siphoning-proboscid insects were matched with host plants. The research results are significant for analysis the relationship between Aneuretopsychina and host plants. It provides reliable theoretical evidence for current research on the co-evolution of pollinating insects and plants, the interaction between insects and environment, and the co-evolution of corresponding pollination patterns.