Body Plan Variation and Pattern Formation Among Metazoans During Their Early Radiation

早寒武世后生动物的辐射涉及一个时期， 低级后生动物的进化伴随着相对突然的 体型的多样化，许多现在已经灭绝， 寒武纪 这段历史暗示了一系列的遗传变化， 控制或形态图案形成以编码序列 of novel新颖architectures建筑. 该项目将调查 （1）提供的早期体型指标之间的关系 通过痕迹和身体化石以及模式的隐含进化- 基因组的形成能力;（2）辐射 （主要是分节的）高等无脊椎动物的身体类型和 基因调控层次的隐含变化模式 控制

The Early Cambrian metazoan radiation involved a period of lower metazoan evolution coupled with a relatively abrupt diversification of body types, many now extinct, during the Cambrian. This history implies a sequence of changes in genetic control or morphological pattern formation to encode the sequence of novel architectures. This project will investigate the relations between (1) the indications of early body types furnished by trace and body fossils and the implied evolution of pattern- formation capabilities of the genome; and (2) the radiation of (chiefly segmented) body types of higher invertebrates and the implied pattern of change in the tiers of genetic-regulatory control.