Population dynamics and genetic variation of plants with contrasting fire responses

具有对比火灾反应的植物的种群动态和遗传变异

• 批准号: ARC : DP0211759
• 负责人: Byron Lamont
• 金额: $ 18万
• 依托单位: Curtin University of Technology
• 依托单位国家: 澳大利亚
• 项目类别: Discovery Projects
• 财政年份: 2002
• 资助国家: 澳大利亚
• 起止时间: 2002-01-01 至 2005-12-31
• 项目状态: 已结题
• 来源: https://researchdata.edu.au/population-dynamics-genetic-contrasting-responses/64667
• 关键词: Population; dynamics; genetic; variation; plants

Population dynamics and genetic variation of plants with contrasting fire responses. We combine the traditional concerns of population viability analyses with the modern techniques of DNA fingerprinting for precise genotyping of individual plants and their seeds. We expect major breakthroughs in our understanding of how fire-killed species have survived thousands of years of frequent burning by Aborigines (by identifying seeds dispersed long distances from burnt parents); how paternity of offspring changes over the lifespan of plants which retain their seeds for many years; at what age within-plant genetic variation is at a maximum as a guide to optimal fire management; and the extent that deleterious somatic mutations explain low seed set among long-lived species.

具有对比火灾反应的植物的种群动态和遗传变异。我们将传统的种群活力分析与现代 DNA 指纹技术相结合，对单个植物及其种子进行精确的基因分型。我们期望在理解被火杀死的物种如何在原住民数千年的频繁焚烧中幸存下来（通过识别距离被烧毁的亲本远距离传播的种子）方面取得重大突破；在保留种子多年的植物的生命周期中，后代的亲子关系如何变化；植物内遗传变异在什么年龄达到最大，作为最佳火灾管理的指南；以及有害的体细胞突变在多大程度上解释了长寿物种结籽率低的原因。