Biochemical Systematics of Pupfishes

河豚鱼生化系统学

• 批准号: 9208264
• 负责人: Anthony Echelle
• 金额: $ 2万
• 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: 1992
• 资助国家: 美国
• 起止时间: 1992-09-01 至 1994-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9208264&HistoricalAwards=false
• 关键词: Biochemical; Systematics; Pupfishes; Biochemical; Systematics; Pupfishes

The proposed research would use an analysis of mitochondrial DNA and proteins to study relationships among members of Cyprinodon variegatus complex of pupfishes. The species of this complex include one wide-ranging species (C. variegatus) that occurs from Massachusetts to Tampico, Mexico and in the West Indies from the Bahamas to Jamaica. The remaining 20 species of the complex occupy much smaller areas, primarily within the range of C. variegatus or near the periphery of its range. the primary objectives are 1) to understand the major patterns of geographic variation in the wide-ranging species, 2) to relate this variation to the evolutionary relationships of the geographically more restricted species, and 3) to use the results to evaluate biogeographic hypotheses and modes of speciation for the complex. Of special interest is the question of whether populations of the wide-ranging species, C. variegatus, might be more closely related to other species than to populations of their own species. If so, then the morphology of the wide-ranging species is primitive for the complex and it comprises one or more cryptic species. The results will be important in future assessments of faunal origins for regions of particular interest in biogeography; for example, the West Indies and the western coast of the Gulf of Mexico.

拟议的研究将使用线粒体DNA和蛋白质的分析来研究pup鱼中塞浦路斯诺顿variegatus复合体之间的关系。 该复合物的物种包括从马萨诸塞州到墨西哥坦皮科和从巴哈马到牙买加的西印度群岛的一种广泛的物种（C. variegatus）。 该综合体的其余20种主要占据较小的区域，主要是在瓦里加图斯梭菌的范围内或附近其范围的外围。 主要目标是1）了解广泛物种中地理变化的主要模式，2）将这种变化与地理上限制更受限制的物种的进化关系相关联，以及3）使用结果来评估复合物的生物地理假设和形象模式。 特别感兴趣的问题是，广泛物种的种群，即Variegatus的种群是否可能与其他物种更紧密相关，而不是与自己物种的种群。 如果是这样，那么广泛物种的形态对于复合物来说是原始的，它包括一个或多个隐性物种。 结果对于对生物地理特殊兴趣地区的动物群起源的未来评估将很重要；例如，西印度群岛和墨西哥湾的西海岸。