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首页> 外文期刊>Biochemical Genetics >Temporal variation in genetic structure of the Chinese rare minnow (Gobiocypris rarus) in its type locality revealed by microsatellite markers.
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Temporal variation in genetic structure of the Chinese rare minnow (Gobiocypris rarus) in its type locality revealed by microsatellite markers.

机译：通过微卫星标记揭示的中国稀有min鱼（Gobiocypris rarus）遗传结构的时间结构变异。

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摘要

Gobiocypris rarus, an endemic cyprinid fish with high fecundity, lives mainly in small water systems easily influenced by changes in natural surroundings. This study used 11 polymorphic microsatellite primers to identify the temporal variation of its topotype population. Moderate genetic diversity, inbreeding phenomena, and limited temporal variation between 1997 and 2006 were revealed in the topotype population. The main temporal fluctuations involved only the change of allelic frequencies over two loci and allelic richness. The effective population size was estimated to be 645. The authors argue that inbreeding did not induce dramatic depression effects on the topotype population, and the forces to maintain genetic diversity were mainly from environmental fluctuations and life history traits. Considering that the topotype population is facing increased habitat loss, destruction, and disturbance due to human activities, the authors suggest that a habitat and species management area be established in the type locality.
机译：Gobiocypris rarus是一种繁殖力强的地方性鲤科鱼类，主要生活在小型水系统中，容易受到自然环境变化的影响。这项研究使用了11种多态性微卫星引物来鉴定其拓扑型种群的时间变化。在拓扑型种群中揭示了1997年至2006年之间的适度遗传多样性，近交现象和有限的时间变异。主要的时间波动仅涉及两个基因座上等位基因频率的变化和等位基因丰富度。有效种群规模估计为645。作者认为，近交不会对拓扑型种群产生显着的抑郁效应，而维持遗传多样性的力量主要来自环境波动和生活史特征。考虑到由于人类活动造成的原型种群面临越来越多的栖息地丧失，破坏和干扰，因此，作者建议在类型所在地建立栖息地和物种管理区。

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