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首页> 外文期刊>Freshwater science >Molecular and morphological methods reveal cryptic diversity and three new species of Nearctic Micropsectra (Diptera:Chironomidae)
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Molecular and morphological methods reveal cryptic diversity and three new species of Nearctic Micropsectra (Diptera:Chironomidae)

机译：分子和形态学方法揭示了隐秘的多样性和三种新近生微菌种（双翅目：蛇科）

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摘要

We used an integrative-taxonomy approach to help resolve taxonomic issues within the genus Micropsectra (Diptera:Chironomidae). We used partial cytochrome c oxidase subunit I (COI) and nuclear carbamylphosphate synthetase (CAD) sequences and morphological data to provide a framework for better understanding of North American species in this group of nonbiting midges. As part of our results, we describe 3 new species: Micropsectra neoappendica, n. sp., Micropsectra penicillata, n. sp., and Micropsectra subletteorum, n. sp., and 1 species new to the north-central USA, Micropsectra xantha (Roback). Two of the species, M. neoappendica n. sp. and M. subletteorum n. sp., initially appeared to be morphologically identical to species known from the Palearctic. However, molecular data indicated that they were genetically distinct, and reexamination of adult and pupal morphology revealed slight but consistent diagnostic differences. The implications of using species-level identifications for cryptic-species complexes in biological monitoring and conservation management are briefly discussed with reference to our findings. Our results emphasize the importance of using molecular tools in conjunction with traditional morphological techniques when studying Chironomidae diversity, especially when relying on diagnoses from other geographic regions.
机译：我们使用综合分类法来解决Micropsectra属（Diptera：Chironomidae）内的分类学问题。我们使用了部分细胞色素C氧化酶亚基I（COI）和核氨基甲酰磷酸合成酶（CAD）序列和形态学数据，为更好地了解这群无咬mid的北美物种提供了框架。作为结果的一部分，我们描述了3个新物种：Micropsectra neoappendica，n。 sp。，Micropsectra penicillata，n。 sp。和Micropsectra subletteorum，n。种，以及美国中北部的一种新种，Micropsectra xantha（Roback）。该物种中的两个，M。neoappendica n.。 sp。和M. subletteorum。最初在形态学上似乎与从古太平洋已知的物种相同。然而，分子数据表明它们在遗传上是不同的，对成年和and形态的重新检查显示出轻微但一致的诊断差异。参考我们的发现，简要讨论了在生物监测和保护管理中使用物种级别的识别对隐物种复合物的影响。我们的结果强调了在研究手足科多样性时，尤其是在依靠其他地理区域的诊断时，结合使用分子工具和传统形态学技术的重要性。

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