Phylogenetic Relationships of North Cyprinid Genera as Evidenced by Morphology, Behavior, and mtDNA Sequences

9307132 Mayden本研究结合线粒体核糖体基因的形态特征和核苷酸序列对北美鲤科鱼类进行了详细的系统发育研究。这一系统发育将用于建立这些鱼类的稳定分类，并研究这一重要鱼类群体的形态、生态和行为多样性模式。鲤科鱼类是北美水生生态系统的主要组成部分，占鱼类区系的近30%。因此，了解这个群体的生物多样性是很重要的。对这些鱼类之间关系的更可靠的了解将大大有助于我们对这一重要鱼类群体的生物地理学、生态学和行为的理解。此外，这项研究将有助于确定独特的种群和物种，这是任何旨在保护北美水生生态系统的管理计划的必要条件。

9307132 Mayden This research involves a detailed phylogenetic study of North American cyprinid fishes using a combination of morphological features and nucleotide sequences of mitochondria ribosomal genes. This phylogeny will be used to establish a stable classification of these fishes and to examine patterns of morphological, ecological, and behavioral diversity within this important group of fishes. %%% Cyprinid fishes form a major component of aquatic ecosystems in North America, representing nearly 30% of the fish fauna. Therefore, it is important to understand the biological diversity of this group. A more reliable understanding of the relationships of these fishes will contribute greatly to our understanding of the biogeography, ecology, and behavior of this important group of fishes. In addition, this research will help identify unique populations and species, a requisite for any management scheme directed toward the conservation of aquatic ecosystems in North America.