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首页> 外文期刊>Marine ecology >Nassarius Corniculus (olivi, 1792) (caenogastropoda: Nassariidae): A Model Of Environmental Complexity Of Italian Brackish And Marine Habitats
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Nassarius Corniculus (olivi, 1792) (caenogastropoda: Nassariidae): A Model Of Environmental Complexity Of Italian Brackish And Marine Habitats

机译:Nassarius Corniculus(1792年,奥利维)(caenogastropoda:Nassariidae):意大利咸淡水和海洋栖息地环境复杂性的模型

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摘要

Strong environmental selection may give rise to complex species and/or camouflage the presence of sibling species in brackish waters. The prosobranch gastropod Nassarius corniculus (Olivi, 1792) is a common scavenger widely distributed in Mediterranean brackish and marine areas. We examined the morphological and molecular features of N. corniculus populations and related these features to the environmental complexity of brackish habitats. Morphological data revealed differences in radular features between specimens collected from two Mediterranean lagoons (Lake Faro, Messina, Sicily and Lake Fusaro, Gulf of Gaeta). Analysis of with the mitochondrial marker mt 16S rRNA revealed genetic variability within the Lake Faro population but did not show the different geographic structure between the two lagoons indicated by morphological data. We also predicted the gene flow of N. corniculus by comparing populations of two marine areas (Faro Sea and Ischia).
机译:强烈的环境选择可能会导致复杂的物种和/或掩盖苦咸水中同级物种的存在。亲肠腹足动物Nassarius corniculus(奥利维,1792年)是一种常见的清道夫,广泛分布于地中海咸淡水和海洋地区。我们检查了山茱N种群的形态和分子特征,并将这些特征与微咸生境的环境复杂性相关。形态学数据显示,从两个地中海泻湖(法鲁湖,墨西拿,西西里岛和加埃塔湾富萨罗湖)采集的标本之间,胚根特征不同。使用线粒体标记mt 16S rRNA进行的分析揭示了法鲁湖种群内的遗传变异性,但未显示形态数据表明的两个泻湖之间的地理结构不同。我们还通过比较两个海洋区域(法罗海和伊斯基亚)的种群预测了角膜猪笼草的基因流量。

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