BAC Libraries from Diverse Crustacean Taxa

．生物学的基本目标之一是了解基因组结构和功能如何随着环境变化而进化，以及遗传约束如何限制物种的自然分布、丰度和适应性进化。为了实现这些目标，托马斯博士建议为各种甲壳类动物分类群开发细菌人工染色体（BAC）文库。这些图书馆专门用于支持比较发展研究和生物如何应对环境变化的调查。甲壳类动物是比较发育研究的理想选择，因为它们具有非凡的形态多样性，并且与主要的发育模式生物——黑腹果蝇有着密切的关系。甲壳类动物分类群也是许多生态学研究的焦点，旨在了解生物与其环境之间的基本相互作用。拟议的BAC库资源及其分布将为支持发育进化和环境基因组学提供重要工具。托马斯博士特别建议为代表三个甲壳类的三个分类群开发BAC库。以水蚤（Daphnia pulex）为代表的是支足类动物。上肢纲以桡足类Tigriopus californicus为代表，Malacostraca纲以片足类Parhyale hawaiensis为代表。水蚤和副水蚤已经成为许多实验室比较发育研究的主题。这项工作将与一组积极参与该提案的主要用户合作进行，他们就适当的分类群进行咨询，为DNA提取提供标本，并帮助使这些资源对其分类群或特定学科的社区可用和有用。这些合作者代表了生物学研究的不同领域，代表了潜在用户群体的广泛范围。每个库的生成和分发将在新罕布什尔大学的哈伯德基因组研究中心（HCGS）进行，由PI（该中心的联合主任）指导。HCGS的主要重点是比较和环境基因组学，与此提案相结合，将提供密集的基因组技术夏季讲习班，以支持学生和博士后使用BAC图书馆。每个分类单元的BAC图书馆资源将以两种方式提供给所有学术和非学术用户：1)作为图书馆的完整排列副本；2)高密度排列在尼龙过滤器上。BAC资源和相关信息将可通过WWW访问。HCGS将在授予期结束后的至少五年内维护和分配这些资源。

.0208364ThomasOne of the fundamental goals of biology is to understand how genome structure and function evolves in response to environmental change and how genetic constraints limit the natural distribution, abundance, and adaptive evolution of species. Toward these goals, Dr. Thomas is proposing to develop Bacterial Artificial Chromosome (BAC) libraries for diverse crustacean taxa. These libraries are specifically intended to support both comparative developmental studies and investigations into how organisms respond to environmental change. The Crustacea are ideal for comparative developmental studies because of their extraordinary morphological diversity, and close relationship to the premier developmental model organism, Drosophila melanogaster. Crustacean taxa are also the focus of many ecological studies aimed at understanding the fundamental interactions between organisms and their environment. The proposed BAC library resources and their distribution will provide critical tools in support of developmental evolution and environmental genomics. Dr. Thomas is specifically proposing to develop BAC libraries for three taxa representing three crustacean classes. The Branchiopods are represented by the water flea, Daphnia pulex. The Maxillapoda are represented by a copepod Tigriopus californicus, and the class Malacostraca is represented by an amphipod, Parhyale hawaiensis. Daphnia and Parhyale are already the subjects of comparative developmental studies in numerous laboratories. This work will take place in collaboration with a set of primary users who are actively participating in this proposal by consulting on the appropriate taxa, supplying specimens for DNA extraction and helping to make these resources available and useful to their taxon- or discipline-specific communities. These collaborators represent disparate fields of biological research and represent a broad spectrum of the potential user community. The generation and distribution of each library will take place at the Hubbard Center for Genome Studies (HCGS) at the University of New Hampshire under the direction of the PI (co-director of the center). The HCGS has a primary focus of comparative and environmental genomics, and in conjunction with this proposal will be offering intensive summer workshops in genomic technologies to support the use of BAC libraries by students and postdocs. BAC library resources from each taxon will be made available to all academic and non-academic users in two ways: 1) as complete arrayed copies of the library; and 2) arrayed at high density on nylon filters. The BAC resources and associated information will be accessible via the WWW. The HCGS will maintain and distribute these resources for a minimum of five years after the end of the granting period.