SGER: Geometric Morphometrics-Based Visualization and Analysis of Morphological Integration: A New Look at Bivalve Evolution

SGER：基于几何形态计量学的形态整合可视化和分析：双壳类进化的新视角

• 批准号: 0313560
• 负责人: Peter Roopnarine
• 金额: $ 3.12万
• 依托单位: California Academy of Sciences
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-04-01 至 2004-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0313560&HistoricalAwards=false
• 关键词: SGER; Geometric; Morphometrics; Based; Visualization

SGER: Geometric Morphometric-based Visualization and Analysis of Morphological Integration: A New Look at Bivalve EvolutionPeter D. RoopnarineEAR-0313560ABSTRACTThe proposed research is a novel approach to morphological integration, a long-standing interest in morphological studies. Morphological integration is a measure of the relationships among morphological characters at the level of the organism. Patterns of morphological integration are descriptions of how the phenotype of a monophyletic group of organisms is actually assembled from recognized characters. Variation of patterns within a monophyletic clade is therefore representative of adaptive histories, as well as phylogenetic and functional constraints. The present study proposes to develop a new method for the derivation and analysis of patterns of morphological integration within a very diverse and geologically old clade of bivalved molluscs, the superfamily Veneroidea. Viewing patterns of morphological integration within a clade, and over geological time, will allow this study to address an important paleobiological concept, namely the precise role of phenotypic construction in morphological constraint, adaptive radiation, and phylogenetic diversification. This proposal is novel because integration patterns will be derived from geometric morphometrics-based analyses, which will allow direct visualization on the phenotypes of the study organisms. The analyses will also encompass the longest interval of geologic time yet considered for a study of integration, approximately 80 million years. Furthermore, it is proposed that these patterns be analyzed in the recent frameworks of network theory and the mathematics of complexity because: 1) Patterns of morphological integration are true networks of relationships among regions of the organism's morphology, and 2) Network theory has been applied recently to both the very lowest levels of the biological hierarchy, such as genomic organization and gene function , and the highest levels, such as trophic food webs. Patterns of morphological integration at the level of species and monophyletic clades represent a critical link between these two ends of the hierarchy.

SGER：基于几何形态学的形态分析和形态整合的分析：对双壳类EvolutionPeter D. ropnarineear-0313560abstracttract the拟议的研究是形态整合的新方法，对形态学研究的长期兴趣。 形态整合是对生物水平上形态特征之间关系的衡量。 形态整合的模式是描述单一生物体的表型实际上是由公认的字符组装而成的。因此，单系进化枝内模式的变化代表了适应历史，以及系统发育和功能约束。本研究提议开发一种新方法，用于在非常多样化和地质旧的副枝Molluscs（超级植物）中的形态整合模式的衍生和分析。在进化枝内以及地质时代内的形态整合模式，将使这项研究能够解决一个重要的古生物学概念，即表型结构在形态约束，适应性辐射和系统发育多样化中的确切作用。该建议之所以新颖，是因为整合模式将来自基于几何形态计量学的分析，这将允许对研究生物的表型进行直接可视化。这些分析还将涵盖地质时间最长的时间间隔，但考虑进行整合研究，约为8000万年。此外，建议在网络理论的最新框架和复杂性的数学框架中分析这些模式，因为：1）形态整合的模式是生物体形态区域之间关系的真实网络，并且已经应用​​了2）2））最近，最低水平的生物层次结构，例如基因组组织和基因功能，以及最高水平，例如营养食品网。物种和单系进化枝水平上形态整合的模式代表了层次结构的这两个末端之间的关键联系。