项目名称: 鲌亚科3个属的系统学与生物地理学研究
项目编号: No.31260632
项目类型: 地区科学基金项目
立项/批准年度: 2013
项目学科: 农业科学
项目作者: 张小谷
作者单位: 九江学院
项目金额: 51万元
中文摘要: 鲌类是鲤科鲌亚科的一个主要类群,作为我国江河平原区系鱼类快速进化物种的代表,在研究鱼类生物学、鱼类物种形成与演化、以及渔业资源管理和利用等问题上均具有较大的意义。 当前,根据形态特征对鲌亚科鲌类在属的划分和鲌属的一些种和亚种分类处理尚存在争议,分子系统学研究和形态学研究结论在鲌类归属上存在着明显的冲突,探讨鲌类的历史形成过程更十分迫切。 本研究项目拟采用体形和颌骨几何形态学分析、耳石和鳞片微形态分析、mtDNA Cytb基因和D-loop区核苷酸序列分析相结合的研究方法,查明我国鲌类种群分化状况,分析其系统发育关系,明确属的划分和分类等级(种级、亚种级),探讨物种生物地理格局,推测历史时空分布及关联的历史事件,为分析我国江河平原区系鱼类物种的形成过程提供例证。同时,为我国鲌类渔业资源管理提供依据。 因此,本项目的实施将具有较大的理论意义和经济社会效益。
中文关键词: 系统学;生物地理学;鲌亚科;鲌类;
英文摘要: The culters are a main group of freshwater fishes in the subfamily Cultrinae in Cyprinidae. Culters belong to the type of widely scattered and fast evolutionary fauna of the fishes in major rivers and lakes of China plain. Studies on the systematics and biogeography of the culters are important to understand such hot issues such as fish biology, speciation and evolution, and management and utilization of fisheries resources. There has been controversy in classifying culters in the genus level and also in classifying species and subspecies of some species in the genus Culter by morphological characteristics. Some conflicts exist between the conclusions from molecular and morphological systematics. Therefore, it is very urgent to explore the historical speciation of culters. In this proposed project, differentiation among the populations from major waters of China and phylogeny of culters will be studied to define reasonable genus, species or subspecies in the classification and taxonomy, understand their biogeographic pattern, and retrieve their historical spatial and temporal distribution. The results of these studies will provide an exemplary illustration for speciation pattern of fishes in China plain fauna. We will achieve these goals by using multiple methods such as geometric morphometric analysis on the b
英文关键词: systematics;biogeography;subfamily Cultrinae;culters;