Spider evolutionary radiations and phyloinformatics

蜘蛛进化辐射和系统信息学

• 批准号: 261352-2013
• 负责人: Maddison, Wayne
• 金额: $ 3.06万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=632120
• 关键词: Spider; evolutionary; radiations; phyloinformatics

Phylogeny is the broad-scale genetic history of life as it has diversified over millions of years. Evolutionary biologists seek to reconstruct this history for its value in understanding biodiversity and the evolutionary processes that shaped it. My laboratory contributes broadly-applicable analytical methods for interpreting phylogenetic history, and focuses empirically on the phylogeny and evolution of salticid spiders. First, we propose to gather data from salticid spiders worldwide to reconstruct their genetic history. We will use this history to study patterns in the evolution of body form and ecology in this group, by which we can determine how predictable were their parallel evolutionary diversifications, versus constrained by history and affected by chance. This work will also discover and document many species new to science. Second, we will infer a detailed phylogeny of a group of North American salticid spiders with complex mating behaviours. This will enable us to assess the extent of hybridization in their history and its relationship to behavioural evolution and sexual selection. Third, we will build new statistical methods and computational infrastructure to support evolutionary studies broadly, including new methods to assess phylogenetic correlation and to manage data workflows. We will train highly qualified personnel in theoretical biology and bioinformatics, DNA sequencing and data analysis, biological field work, and arthropod biodiversity studies.

系统发育是生命的大规模遗传历史，因为它已经多样化了数百万年。进化生物学家试图重建这段历史，因为它在理解生物多样性和形成它的进化过程中具有价值。我的实验室为解释系统发育史提供了广泛适用的分析方法，并以经验为重点研究跳蛛的生殖和进化。首先，我们建议收集来自世界各地的跳蛛的数据，以重建它们的遗传历史。我们将利用这段历史来研究这一群体的体型和生态进化模式，通过这一模式，我们可以确定他们的平行进化多样性的可预测性，而不是受历史的约束和偶然性的影响。这项工作还将发现和记录许多新的科学物种。第二，我们将推断一组北美salicid蜘蛛复杂的交配行为的详细发育。这将使我们能够评估它们历史上杂交的程度及其与行为进化和性选择的关系。第三，我们将建立新的统计方法和计算基础设施，以广泛支持进化研究，包括评估系统发育相关性和管理数据工作流程的新方法。我们将培养理论生物学和生物信息学、DNA测序和数据分析、生物实地工作和节肢动物生物多样性研究方面的高素质人才。