Collaborative Research: AToL: Assembling the Pleurocarp Tree of Life: Resolving the rapid radiation using genomics and transcriptomics

合作研究：AToL：组装侧果生命树：利用基因组学和转录组学解决快速辐射问题

• 批准号: 1239992
• 负责人: Norman Wickett
• 金额: $ 42.83万
• 依托单位: Chicago Horticultural Society
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2013
• 资助国家: 美国
• 起止时间: 2013-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1239992&HistoricalAwards=false
• 关键词: Collaborative; Research; AToL; Assembling; Pleurocarp

The evolutionary history of land plants over the last 500 million years is characterized by periodic bursts of diversification following major climatic shifts, specific geologic events, or the evolution of specific characters. Speciation is then so rapid that the relationships among descendants are hard to identify, and large sets of data are needed to resolve the family tree. The moss lineage Hypnanae underwent an explosive radiation following its origin 165 mya. Today, it comprises about 5,000 species, but their grouping into evolutionary units is obscure. Inferences from extensive sets of genes sampled using a gene enrichment strategy combined with gene expression data will provide a robust framework to further our understanding of this diverse, and ecologically important lineage.This study focuses on untangling the relationships among species that arose from an explosive diversification, on identifying the geologic or climatic shifts that triggered these events, and on understanding the significance of morphological innovations allowing adaptations to diverse habitats. The target group of mosses is more diverse than conifers, dominates some communities, and plays critical ecological roles throughout the world. Resolving the patterns and processes underlying the rise of a diverse lineage offers an opportunity to understand how these organisms may respond to rapid global change.

在过去的5亿年中，土地植物的进化历史的特征是在重大气候转移，特定的地质事件或特定特定特征的演变之后定期多样化。因此，物种形成如此之快，以至于很难识别后代之间的关系，并且需要大量数据来解决家谱。苔藓谱系Hypnanae在其起源165 Mya之后进行了爆炸性辐射。如今，它包含了约5,000种，但它们分为进化单元是晦涩的。通过使用基因富集策略与基因表达数据相结合的大量基因的推论将提供一个强大的框架，以进一步了解我们对这一多样化和生态上重要的谱系的理解。这项研究着重于解开源自爆炸性多样化的物种之间的关系，并允许这些事件触发，并触发了这些事件，并触发了触发的事件，并触发了触发的事件。栖息地。苔藓的目标群体比针叶树更多样化，在某些社区中占主导地位，并且在世界范围内扮演着重要的生态角色。解决不同血统崛起的基础的模式和过程，为了解这些生物如何应对全球快速变化的方式提供了机会。