Phylogeny of molluscs and their relatives based on new molecular data

动物界主要可分为两大类：后口动物和原口动物。此外，后者可进一步分为包含约13个主要门的光栖动物和由约7个主要门组成的外生动物。然而，在这两个主要群体中，很难找到任何系统发育关系的稳定和良好的解决方案。因此，在与其他科学家的合作下，我们打算建立一个稳定的和很好解决的后生动物重建，特别关注我和另外两个合作者的光合动物系统发育。我个人的分析将主要集中在软体动物门及其潜在的亲戚，分别是Sipunculida和Entoprocta。为了追踪这一点，我们将采取两种方式：(i)我们将分析大量的est并获得新基因的交集，这些交集可用于追踪Lophotrochozoa以及Ecdysozoa和deuterostomes的（深层）系统发育。第二种方法（ii）由所有后生动物门中常见的10种已知蛋白质组成，这些蛋白质将被额外分析，并作为一个共同的数据集，用于重建深层寒武纪水平的后生动物类的系统发育，就像第一种方法一样。

The animal kingdom mainly can be subdivided into two major groups: Deuterostomes and Protostomes. Additionally, the latter ones can be split further into the Lophotrochozoa containing ca. 13 main Phyla and the Ecdysozoa consisting of ca. seven main Phyla. Within these two major groups however, a stable and well-resolved resolution of any phylogentic relationship can hardly to be found. Thus, in collaboration with other scientists we are intending to create a stable and well-resolved reconstruction of the Metazoa with special focus on the lophotrochozoan phylogeny by me and two other collaborates. My personal analyses will mainly focus on the Phylum Mollusca and their potential relatives the Sipunculida and the Entoprocta, respectively. To trace this, we will follow up two ways: (i) we will analyze a huge set of ESTs and obtain an intersection of new genes, which can be used to trace the (deep) phylogeny of the Lophotrochozoa as well as Ecdysozoa and deuterostomes. The second way (ii) consists of ten known proteins common in all metazoan phyla, which will be analyzed additionally and used as a common data set to reconstruct the phylogeny of the metazoan classes at the deep Cambrian level as it is for the first approach.