Integrating fossils with genomic data to clarify the evolution of the herring-like fishes (Clupeiformes: Clupeoidei)

将化石与基因组数据相结合，以阐明类似鲱鱼的鱼类（Clupeiformes：Clupeoidei）的进化

• 批准号: 403523527
• 负责人: Professorin Dr. Bettina Reichenbacher
• 金额: --
• 依托单位: Sektion Paläontologie und Geobiologie
• 依托单位国家: 德国
• 项目类别: Research Grants
• 财政年份: 2018
• 资助国家: 德国
• 起止时间: 2017-12-31 至 2023-12-31
• 项目状态: 已结题
• 来源: https://gepris.dfg.de/gepris/projekt/403523527?language=en
• 关键词: Integrating; fossils; genomic; data; clarify

Clupeoidei (e.g. herrings, sardines, anchovies) constitutes a large suborder of teleost fishes, which encompasses some 400 extant, small to moderate-sized (<50 cm) pelagic species. Species of clupeoids play significant ecological and economic roles, but their evolutionary history remains obscure, despite the availability of a good fossil record comprising about 160 species based on articulated skeletons. This is mainly the result of the lack of detailed taxonomic and phylogenetic studies of a large part of the fossil species available. The overall aim of the proposed project is to incorporate fossil and living clupeoids into a unified, time-calibrated phylogeny and infer the history of their diversification. The project is made up of two successive work packages (WP), with WP1 lasting for three years and WP2 for two years. WP2 will get underway when WP1 is virtually complete. The specific objectives of WP1 are (i) to assemble a new, comprehensive data matrix based on analyses of skeletal characters for already selected fossil and extant species, (ii) to construct phylogenetic trees from the new matrix, and (iii) to critically evaluate the increase in numbers of fossil species that is observable in the fossil record since the Oligocene and Miocene. The specific aims of WP2 are (i) to combine available molecular data with the morphological character matrix, (ii) to construct phylogenetic trees from different combinations of datasets, (iii) to infer lineage divergence times from these trees using state-of-the art methods, and (iv) to use the new time-calibrated phylogenies as the basis for the analysis of diversification patterns. The new data will provide completely new insights into the evolutionary history of the Clupeoidei and also shed light on the evolution of extant species that are not represented in the fossil record. Clupeoid evolution is currently a hot topic in ichthyological research, with several groups working with different sources of data (DNA, morphology of extant species, and paleontology). However, an integrative approach, which brings together fossils and genomic data, is currently lacking. This project aims to fill that gap and is therefore expected to receive considerable attention.

clupeoidei（例如鲱鱼，沙丁鱼，凤尾鱼）构成了大量的硬骨鱼，其中包含大约400个现有的，小到中度至中度（<50 cm）的pelagic物种。 clupeoids扮演着重要的生态和经济角色，但它们的进化史仍然晦涩难懂，尽管具有良好的化石记录，该记录包括基于明显的骨骼，其中约有160种物种。这主要是由于缺乏可用的化石物种缺乏详细的分类学和系统发育研究的结果。拟议项目的总体目的是将化石和活的粘液固定在统一的，时间校准的系统发育中，并推断其多样化的历史。该项目由两个连续的工作包（WP）组成，WP1持续了三年，WP2持续了两年。 WP2几乎完成后，WP2将进行。 WP1的具体目标是（i）基于对已经选择的化石和现有物种的骨骼特征的分析组装新的，全面的数据矩阵，（ii）以构造从新矩阵中的系统发育树，以及（iii）以认真评估从酸性记录中可观察到的化石数量增加的物种数量的增加。 WP2的具体目的是（i）将可用的分子数据与形态学特征矩阵相结合，（ii），以从数据集的不同组合中构建系统发育树，（iii），（iii）使用最新的艺术方法来推断这些树的差异时间，以及（iv），（iv）将新的时间校准的系统构成基础进行分析，以分析多样化的分析。这些新数据将提供有关Clupeoidei的进化史的全新见解，并阐明了化石记录中未代表的现存物种的演变。 Clupeoid Evolution目前是鱼类学研究中的热门话题，其中几个组与不同的数据源（DNA，现有物种的形态和古生物学）一起工作。但是，目前缺乏一种综合方法，该方法汇集了化石和基因组数据。该项目旨在填补这一空白，因此有望受到大量关注。