Molecular Phylogeny of Spider Families

蜘蛛家族的分子系统发育

• 批准号: 9207335
• 负责人: Norman Platnick
• 金额: $ 2.5万
• 依托单位: American Museum Natural History
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1994-02-28
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9207335&HistoricalAwards=false
• 关键词: Molecular; Phylogeny; Spider; Families

The spiders of the world are a diverse and ecologically important group of organisms, living in nearly all terrestrial habitats and constituting significant predators in these communities. Taxonomically they are disposed into 105 families, and one of the largest and most comprehensive collections of spider specimens is housed at the American Museum of Natural History. Researchers there are employing modern molecular methods to conduct DNA sequencing of targeted genes, to gain data useful in the phylogenetic analysis of evolutionary relationships among these families and with potential arthropod relatives. Target loci include the 18S ribosomal genes, the histone H4 genes, and the nuclear ubiquitin genes. Morphological characters also are being studied and are to be integrated with the molecular results in a combined analysis. A reliable phylogeny of the spiders will facilitate future studies of their geographical distributions, modes of speciation, and ecological specializations.

世界上的蜘蛛是一个多样化的生态重要生物群，生活在几乎所有陆地栖息地，是这些群落中重要的捕食者。从分类上讲，它们被归入105个科，其中一个最大、最全面的蜘蛛标本收藏在美国自然历史博物馆。那里的研究人员正在使用现代分子方法对目标基因进行DNA测序，以获得有助于这些家族之间以及与潜在节肢动物近亲之间进化关系的系统发育分析的数据。靶基因包括18S核糖体基因、组蛋白H4基因和核泛素基因。形态特征也在研究中，并将与分子结果结合在一起进行分析。可靠的蜘蛛系统发育将有助于未来对它们的地理分布、物种形成模式和生态专门化的研究。