Molecular Evolution of Holostean Pituitary Hormones

辐鳍鱼的进化 分三个阶段。 第一组是Chondrostei。 这群 是由Holostean鱼，被取代， 硬骨鱼类是现存脊椎动物中最具多样性的类群。 化石 记录表明，Holostean鱼是祖先， 硬骨鱼 只有两个属的Holosteans幸存下来（Amia和 鱼）。 Amia是一个“活化石”。" 这项建议会 重点介绍几种垂体的生化特性， 激素发现Amia使用最先进的技术蛋白质 分析和基因工程。 这些激素将被比较 更“先进”的鱼类。 全兽人在商业上 重要的是，这项研究可能会提供更好的方法， 管理这个渔场。 //

The evolution of the Actinopterygii (ray finned fish) has proceeded in three stages. The first group were the Chondrostei. This group was succeeded by the Holostean fishes which were superceded by the Teleosts, the most diverse group of living vertebrates. The fossil record indicates that Holostean fish were the ancestors to the Teleosts. Only two genera of Holosteans have survived (Amia and Lepisosteus). Amia is a "living fossil." This proposal will focus on the biochemical characterization of several pituitary hormones found in Amia using state of the art techniques of protein analysis and genetic engineering. These hormones will be compared with those of more "advanced" fishes. Holosteans are commercially important and the study may provide insights into ways to better manage this fishery. //