黄花刺茄在新疆不同入侵区域的繁殖特性及其对同域植物有性繁殖的影响

入侵植物的繁殖生态学对于揭示其繁育系统分化、种群建立与扩张等入侵机制具有重要理论价值。黄花刺茄是一种具有独特传粉系统、入侵区域很广和危害风险很大的一年生杂草。在新疆，该物种可在极端干旱、干旱和相对湿润的气候区域成功入侵。本项目将以黄花刺茄为研究对象，通过对其在新疆气候差异显著的入侵区域的花部综合征、传粉特性及其对同域分布并共享传粉者的荒漠优势种骆驼蓬传粉系统的影响等研究，明确不同入侵区的黄花刺茄在传粉特性上的异同，分析其特化花部特征、传粉系统与本地传粉者间的相互作用，解析其对骆驼蓬传粉系统和结实率的影响，揭示其在干旱区不同环境中的繁殖策略及对本地植物有性繁殖的影响。有关成果不仅可为全面揭示黄花刺茄在新疆干旱区的入侵机制、探讨其繁殖特性与入侵性之间的关系、进而制定科学的管理措施提供重要的理论依据和实践指导，还可为我国干旱区其它入侵植物的入侵机制研究与科学管理、保障区域生态安全提供典型范例。

Reproductive ecology of invasive plants has great theoretical value for revealing the invasive mechanism of invasive species, such as the differentiation of breeding system, the establishment and expansion of populations and so on. Solanum rostratum is an annual invasive weed with special pollination system, widely distribution area and greatly damage. This species can achieve successful invasion in extreme drought, drought and relatively humid area of Xinjiang. In this project, we will investigate the floral syndrome and pollination ecology of S. rostratum in different invaded regions of Xinjiang and understand its influence on pollination system of a dominant desert species Peganum harmala, which are distributed sympatrically and share pollinators with S. rostratum in the desert regions of Xinjiang. Our aims are to clarify the differences in pollination biology of S. rostratum in different invaded areas, analyze the interactions between its specialized floral features, pollination system and native pollinators in different invaded areas of Xinjiang, and reveal its influence on the pollination system and fruit-set of P. harmala. Furthermore, we will explore the reproductive strategies of S. rostratum and its effects on sexual reproduction of native plant species in different environments of arid region. These results will not only provide theoretical basis and practical guide for exploring the invasive mechanisms and the relationships between reproduction and invasiveness of S. rostratum, formulating scientific management and control measures in the arid areas of Xinjiang, but also offer a typical example for researching the invasive mechanism and scientific management of other invasive plants in the arid region of our country and safeguarding regional ecological security.