Evolution of plant defenses during a plant invasion

植物入侵期间植物防御的演变

• 批准号: 431595342
• 负责人: Professor Dr. Oliver Bossdorf, Ph.D.
• 金额: --
• 依托单位: Lehrbereich für Evolutionäre Ökologie der Pflanzen
• 依托单位国家: 德国
• 项目类别: Research Grants
• 资助国家: 德国
• 项目状态: 未结题
• 来源: https://gepris.dfg.de/gepris/projekt/431595342?language=en
• 关键词: Evolution; plant; defenses; during; invasion

Biological invasions are an increasing global problem, with dramatic ecological and economic consequences. To manage current invaders and prevent future invasions it is critical to understand the processes underlying successful biological invasions. For instance, we know that successful invasive species often rapidly evolve and adapt to their novel environments, in particular to altered enemy pressures. The precise mechanisms, from genome to plant phenotypes and biotic interactions, are however rarely understood. Moreover, a true understanding of an invasive species requires a cross-continental perspective, and the comparison of its ecology and evolution in the native versus introduced range. Here, we propose an integrative and cross-continental study of the aggressive plant invader Japanese knotweed (Reynoutria japonica), which experiences drastic changes in herbivore pressure in its introduced range. To understand the evolutionary processes during this invasion, and its underlying mechanisms, we have assembled a German-Chinese team of leading invasion biologists with complementary expertises. Our project takes advantage of an ongoing global survey and molecular analysis of 200 invasive knotweed populations from across the native (China/Japan) and invasive (USA/Europe) range. We will build on the resources of this project and examine herbivory and plant herbivore resistance on a global scale, and how these are associated with underlying variation in plant secondary chemistry, as well as with (epi-)genomic and transcriptome variation. To achieve this, we will combine field observation with common-garden and experimental approaches, and with metabolomic and genomic methods. Our project will be unique in its combination of geographic scale and biological depth, and it will provide important insights about one of the world’s worst invasive species. We hope that it will become a model for successful cross-continental collaboration.

生物入侵是一个日益严重的全球性问题，具有严重的生态和经济后果。为了管理当前的入侵者并防止未来的入侵，了解成功的生物入侵的潜在过程至关重要。例如，我们知道，成功的入侵物种通常会迅速进化并适应新的环境，特别是改变敌人的压力。然而，从基因组到植物表型和生物相互作用的精确机制很少被理解。此外，要真正了解入侵物种，需要跨大陆的视角，并将其在本地与引进范围内的生态和进化进行比较。在这里，我们提出了一个综合性和跨大陆的研究侵略性植物入侵者日本虎杖（日本虎杖），经历了激烈的变化，在其引进范围内的食草动物的压力。为了了解这种入侵过程中的进化过程及其潜在机制，我们组建了一个由德国和中国领导的入侵生物学家组成的团队，他们具有互补的专业知识。我们的项目利用了一项正在进行的全球调查和分子分析的200入侵虎杖种群从整个本地（中国/日本）和入侵（美国/欧洲）的范围。我们将建立在这个项目的资源，并在全球范围内研究植食性和植物植食性抗性，以及这些是如何与植物次生化学的潜在变化，以及与（表观）基因组和转录组变异。为了实现这一目标，我们将结合联合收割机现场观察与普通花园和实验的方法，并与代谢组学和基因组学的方法。我们的项目将在地理规模和生物深度的结合上是独一无二的，它将提供关于世界上最严重的入侵物种之一的重要见解。我们希望它将成为成功的跨大陆合作的典范。