Evolution and adaptive radiation of dog-fish sharks (Chondrichthyes, Squaliformes)

角鲨（软骨鱼目、角鲨目）的进化和适应性辐射

• 批准号: 31701581
• 负责人: Professor Dr. Jürgen Kriwet
• 金额: --
• 依托单位: Institut für Paläontologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2006
• 资助国家: 德国
• 起止时间: 2005-12-31 至 2010-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/31701581?language=en
• 关键词: Evolution; adaptive; radiation; dog; fish

The interrelationships and evolution of squaliform sharks are controversially discussed and the processes underlying their radiation in the deep-sea are unknown. Squaliform sharks are wide-spread and constitute a monophyletic group with a fossil record ranging back into the Early Cretaceous. Their fossil record consists almost completely of isolated teeth, only few skeletal remains are known from the Lebanese Late Cretaceous. In this study, the phylogeny of extant and fossil squaliforms is re-examined for the first time using a combination of dental, meristic, and molecular data. Although the separate data sets display high potential for reconstructing phylogenetic relationships within squaliforms, no detailed study concerning the potential of individual data sets in combination has been carried out so far. The radiation of selected speciose groups (e.g., Etmopteridae, Squalidae) will be analysed with modern techniques for gaining better insights into the timing and pattern of processes underlying adaptation and speciation events and to develop general models with relevance to other groups e.g., deep-water carcharhiniform sharks.

角鲨的相互关系和进化存在争议，而它们在深海辐射的过程尚不清楚。角鲨分布广泛，是一个单系类群，其化石记录可以追溯到白垩纪早期。他们的化石记录几乎完全由孤立的牙齿组成，只有少数来自黎巴嫩晚白垩世的骨骼遗骸。在这项研究中，首次结合牙科、分形和分子数据重新检查了现存和化石角鲨的系统发育。尽管单独的数据集显示出重建角形类内系统发育关系的巨大潜力，但迄今为止尚未对单个数据集组合的潜力进行详细研究。将使用现代技术分析选定物种群体（例如，Etmopteridae、Squalidae）的辐射，以便更好地了解适应和物种形成事件背后的过程的时间和模式，并开发与其他群体（例如深水）相关的通用模型真鲨。

项目成果

Molecular phylogeny and node time estimation of bioluminescent Lantern Sharks (Elasmobranchii: Etmopteridae).

生物发光灯笼鲨（板鳃鲨：Etmopteridae）的分子系统发育和节点时间估计。

• DOI: 10.1016/j.ympev.2010.04.042
• 发表时间: 2010-09-01
• 期刊: Molecular phylogenetics and evolution
• 影响因子: 4.1
• 作者: N. Straube;S. Iglésias;D. Sellos;J. Kriwet;U. Schliewen
• 通讯作者: U. Schliewen

Cryptic diversity and species assignment of large lantern sharks of the Etmopterus spinax clade from the Southern Hemisphere (Squaliformes, Etmopteridae)

南半球 Etmopterus spinax 分支的大型灯笼鲨的隐秘多样性和物种分配（Squaliformes，Etmopteridae）

• DOI: 10.1111/j.1463-6409.2010.00455.x
• 发表时间: 2011-01-01
• 期刊: Zoologica Scripta
• 影响因子: 2.5
• 作者: N. Straube;J. Kriwet;U. Schliewen
• 通讯作者: U. Schliewen