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首页> 外文期刊>Ecotoxicology and Environmental Safety >Population genetic structure and hybridization patterns in the cryptic sister species Chironomus riparius and Chironomus piger across differentially polluted freshwater systems
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Population genetic structure and hybridization patterns in the cryptic sister species Chironomus riparius and Chironomus piger across differentially polluted freshwater systems

机译:不同污染淡水系统中隐性姐妹种Chironomus riparius和Chironomus piger的种群遗传结构和杂交方式

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摘要

Chironomids are an integral and functionally important part of many freshwater ecosystems. Yet, to date, there is limited understanding of their microevolutionary processes under chemically polluted natural environments. In this study, we investigated the genetic variation within populations of the ecotoxicological model species Chironomus riparius and its cryptic sister species Chironomus piger at 18 metal-contaminated and reference sites in northwestern Portugal. Microsatellite analysis was conducted on 909 samples to answer if metal contamination affects genetic variation in natural chironomid populations as previously suggested from controlled laboratory experiments.
机译:尺虫是许多淡水生态系统不可或缺的功能重要组成部分。然而,迄今为止,对其在化学污染的自然环境下的微进化过程的理解还很有限。在这项研究中,我们调查了葡萄牙西北部18个受到金属污染和参考的生态毒理学模式物种Chironomus riparius及其隐性姐妹物种Chironomus Piger种群内的遗传变异。如先前受控实验室实验所建议的那样,对909个样品进行了微卫星分析,以回答金属污染是否会影响自然尺虫种群的遗传变异。

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