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

寒武纪早期的后生动物辐射包括一段较低的后生动物演化时期，加上寒武纪期间相对突然的身体类型多样化，其中许多现在已经灭绝。这段历史意味着遗传控制或形态模式形成的一系列变化，以编码新建筑的序列。该项目将研究(1)遗迹和遗体化石提供的早期体型的指示与基因组模式形成能力的隐含进化之间的关系；(2)高等无脊椎动物(主要是节段性的)体型的辐射与遗传调控层中隐含的变化模式之间的关系。

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.