Biochemical Systematics of Pupfishes

河豚鱼的生化系统学

• 批准号: 8818004
• 负责人: Anthony Echelle
• 金额: $ 13万
• 依托单位: Oklahoma State University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1989
• 资助国家: 美国
• 起止时间: 1989-01-01 至 1992-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8818004&HistoricalAwards=false
• 关键词: Biochemical; Systematics; Pupfishes

Drs. Anthony and Alice Echelle of Oklahoma State University will use biochemical data to study the evolutionary relationships of the freshwater pupfishes of North America. The group includes the pupfishes of the genus Cyprinodon (35 species) and five small genera (1-2 species each) of related fishes. The work emphasizes the use of protein variation analyzed by electrophoresis to describe genealogical relatedness among the genera and among the 22 "inland" species of pupfish, followed by the use of mitochondrial DNA variation to describe relationships within a small subset of species, the Death Valley pupfishes and their nearest relatives. Pupfishes constitute the most diverse group of fishes in the three major warm deserts of North America: Mohave, Sonoran, and Chihuahuan. The numerous desert-dwelling pupfish species and the deserts they inhabit have developed in relatively recent geological time. Thus, knowledge of phylogenetic relationships among pupfishes should provide considerable insight into the biogeography of southwestern United States and northern Mexico. The pupfishes also provide an unusual opportunity to test different modes of speciation. A number of pupfishes and the one species of the related genus Megupsilon are threatened with probable extinction in the near future. One outcome of the proposed work is to produce frozen collections of tissues for future biochemical work.

博士。俄克拉荷马州立大学的Anthony和Alice Echelle将使用生化数据来研究北美淡水pup鱼的进化关系。 该组包括cyprinodon属（35种）和五个小属（1-2种）相关鱼类的p。 这项工作强调了通过电泳分析的蛋白质变异来描述属之间以及22种“内陆” pup鱼中的谱系相关性，然后使用线粒体DNA变异来描述物种小子集中的关系，即死亡山谷pup鱼及其最近的亲属。 p鱼构成北美三个主要温暖沙漠中最多样化的鱼类：莫哈夫，索诺兰和奇瓦瓦。 在相对较新的地质时代，他们居住的众多居住在沙漠的pup鱼种类及其居住的沙漠。 因此，对pup鱼之间的系统发育关系的知识应为美国西南部和墨西哥北部的生物地理学提供大量见解。 pup鱼还提供了一个不寻常的机会来测试不同的物种模式。 在不久的将来，许多pup鱼和相关属的一种物种受到可能的灭绝威胁。 拟议的工作的一个结果是生产冷冻的组织收集，以进行未来的生化工作。