Systematics of Iguanian Lizards (Squamata, Reptilia): Integration of Molecular and Morphological Evidence

鬣蜥蜥蜴（有鳞目、爬行动物）的系统学：分子和形态学证据的整合

• 批准号: 9220870
• 负责人: Darrel Frost
• 金额: $ 32.5万
• 依托单位: American Museum Natural History
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-15 至 1999-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9220870&HistoricalAwards=false
• 关键词: Systematics; Iguanian; Lizards; Squamata; Reptilia

This is a five year study of the systematics of Iguanian lizards. Both morphological and molecular characters will be used to address the relationships within the Tropiduridae, Polychrotidae, Chamaeleonidae, and basal agamines. Three mitochondrial genes (16S rRNA, cytochrome c oxidase subunit I, and cytochrome c oxidase subunit III) will be sequenced in a effort to investigate more recent divergences. Relationships involving older lineage divergences will be determined using nucleotide sequences from nuclear single-copy genes. Detailed comparative morphological studies will be conducted on the same taxa used in the molecular study, and the intrinsic qualities and information of each kind of data will be evaluated using several analytical approaches. %%% Iguanian lizards represent a biologically diverse group of vertebrates, with the New World families (occurring primarily in South America) being considerably more diverse than their Old World counterparts (represented by taxa in Madagascar). The results from this multidisciplinary approach to understanding the diversity of this group of vertebrates will provide a framework for understanding molecular and morphological change in a related group of taxa located in different regions of the World. The overall pattern of variation obtained from this study can also provide a basis for understanding the ecology, physiology, and behavior of this important component of the World's biota.

这是一项为期五年的鬣蜥分类学研究 蜥蜴 形态学和分子生物学特征都将被使用 为了解决热带鼠科内部的关系， 多色体科，变色龙科，和基底无纲。 三 线粒体基因（16S rRNA，细胞色素c氧化酶亚基I， 细胞色素c氧化酶亚基III）将进行测序， 调查最近的分歧。 涉及老年人的关系 将使用核苷酸序列确定谱系分歧 从核单拷贝基因。 详细的比较形态学 将对分子生物学中使用的相同分类群进行研究。 研究，以及每种类型的内在质量和信息 将使用几种分析方法对数据进行评价。 %%% 鬣蜥代表了一个生物多样性的群体， 脊椎动物，与新世界的家庭（主要发生在 南美洲）比旧大陆更加多样化 对应方（以马达加斯加的分类群为代表）。 的结果 这种多学科的方法来理解的多样性， 这类脊椎动物将为 了解相关群体的分子和形态变化 分布在世界不同地区的分类群。 整体 从这项研究中获得的变化模式也可以提供一个 了解生态学，生理学和行为的基础 这是世界生物群的重要组成部分。