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首页> 外文期刊>The Korean Journal of Systematic Zoology >Genetic Distribution Pattern of Bluegill Sunfish Lepomis macrochirus in Freshwater Ecosystems across Korea
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Genetic Distribution Pattern of Bluegill Sunfish Lepomis macrochirus in Freshwater Ecosystems across Korea

机译：大韩民国淡水生态系统中大翻车Sun鱼Lepomis macrochirus的遗传分布模式

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摘要

Lepomis macrochirus front the family Centrarchidae, commonly known as Bluegill Sunfish. is an introduced freshwater fish in Korea that thrives in lakes. ponds, reservoirs and rivers. Since its introduction into Korea in 1969, Lepomis macrochirus has rapidly dispersed Out and increased ill number almost all over the freshwater ecosystems in Korea. Consequently this species Causes a severe ecological problem, threatening native fishes due to its omnivorous foraging behaviors upon fish juveniles and many freshwater invertebrates. To address population genetic structure of L. macrochirus, 74 fish samples from 10 Populations were collected and compared for their mitochondrial D-loop control region. As the result We found that the genetic diversity of L. macrochirus is extremely low such as resulting only four haplotypes with a few nucleotide differences among them. Analysis of molecular variance (AMOVA) revealed that the Source of population genetic variation is largely retained in the comparisons among individuals Within Populations, while it is relatively low with slight significance at the highest hierarchical group. This distribution pattern differs from what is expected when biogeography is under the influence of natural geographic barriers such as Mountain ranges ill Korea. Instead the result is accord with the influential role of random spreading events facilitated by local people for aquaculture and fishing, and subsequent dispersals since its single point of introduction into Korea.
机译：Lepomis macrochirus位于front科（Centrarchidae）前，俗称蓝Blue翻车鱼。是韩国引进的淡水鱼，在湖泊中壮成长。池塘，水库和河流。自1969年引入韩国以来，大白喉Lepomis macrochirus迅速散布开来，几乎在整个韩国的淡水生态系统中患病人数增加。因此，该物种由于对鱼类幼鱼和许多淡水无脊椎动物的杂食性觅食行为，造成了严重的生态问题，威胁到本地鱼类。为了解决大型手钩虫的种群遗传结构，收集了10个种群的74个鱼样本，并比较了它们的线粒体D环控制区。结果，我们发现L. macrochirus的遗传多样性极低，例如仅产生四种单倍型，它们之间的核苷酸差异很小。分子方差分析（AMOVA）显示，群体内个体之间的比较在很大程度上保留了群体遗传变异的来源，而相对较低，在最高等级的人群中意义不大。这种分布方式与生物地理学受自然地理障碍（例如韩国的山脉）的影响时的预期不同。取而代之的是，该结果与当地居民在水产养殖和渔业中促进的随机传播事件的影响作用以及自从引入韩国以来的随后传播有关。

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