Rhachotropis (Eusiroidea, Amphipoda) from the North East Atlantic.
Rhachotropis (Eusiroidea, Amphipoda) from the North East Atlantic.
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DOI：
10.3897/zookeys.731.19814
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发表时间：
2018
期刊：
影响因子：
1.3
通讯作者：
Driskell A
中科院分区：
文献类型：
--
作者：
Lörz AN;Tandberg AHS;Willassen E;Driskell A
Rhachotropis属在全世界所有端足类属中具有最广泛的地理和水深分布。对冰岛和挪威海岸附近采样的标本进行分子和形态学研究，首次深入了解了东北大西洋Rhachotropis的关系。为本研究生成的31个细胞色素氧化酶亚基I（COI）序列在生命条形码数据库（BOLD）中分配了13个条形码索引号（BIN），其中12个是数据库中的新序列。COI和16S序列的分子分析不能证实一个理论，即深度有更大的影响比地理距离Rhachotropis的生殖。虽然东北大西洋是一个研究得很好的地区，但我们的分子调查显示，Rhachotropis属可能含有神秘物种，这表明其生物多样性比目前已知的要高。例如，Rhachotropis helleri的关键标本是三个COI分支的复合体，其中两个不能用形态特征识别。每个分支的一个标本的进化枝图中记录了高清晰度的照片。一个特别的重点是眼睛的视觉形态，因为这个字符显示属Rhachotropis内的种间差异，在乙醇中的固定。详细的形态学研究表明，一些分支被认为是难以区分的，可以分开的分钟，但一致的形态特征。对Genbank进行数据挖掘，以检查所有已注册的R. aculeata是北大西洋和亚北极地区唯一已知的Rhachotropis BIN。aculeata细分为北极和北大西洋人口。
The genus Rhachotropis has the widest geographic and bathymetric distribution of all amphipod genera worldwide. Molecular and morphological investigations of specimens sampled around Iceland and off the Norwegian coast allow the first insights into the relationships of North East Atlantic Rhachotropis. The 31 cytochrome oxidase subunit I (COI) sequences generated for this study were assigned 13 Barcode Index Numbers (BINs) in the Barcode of Life database (BOLD), of which 12 are new to the database. Molecular analyses of COI and 16S sequences could not confirm a theory that depth has a greater influence on the phylogeny of Rhachotropis than geographic distance. Although the North East Atlantic is a well-studied area, our molecular investigations revealed the genus Rhachotropis may contain cryptic species, which indicates a higher biodiversity than currently known. For example, the specimens which key to Rhachotropis helleri is a complex of three COI clades, two of which cannot be identified with morphological traits. One specimen of each of the clades in the cladogram was documented by high definition photographs. A special focus was on the visual morphology of the eyes, as this character shows interspecific differences within the genus Rhachotropis in response to fixation in ethanol. Detailed morphological investigation showed that some clades thought to be indistinguishable can be separated by minute but consistent morphological characters. Datamining Genbank to examine all registered COI-sequences of R. aculeata, the only previously known Rhachotropis BIN in the North Atlantic and sub-Arctic, showed R. aculeata to be subdivided by an Arctic and a North Atlantic population.
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影响因子：
0.8
作者：
Bellan-Santini, Denise
通讯作者：
Bellan-Santini, Denise
影响因子：
1.3
作者：
Brix S;Lorz AN;Jazdzewska AM;Hughes L;Tandberg AHS;Pabis K;Stransky B;Krapp-Schickel T;Sorbe JC;Hendrycks E;Vader W;Frutos I;Horton T;Jazdzewski K;Peart R;Jan Beermann;Coleman CO;Buhl-Mortensen L;Laure Corbari;Havermans C;Tato R;Campean AJ
通讯作者：
Campean AJ
影响因子：
7.7
作者：
Geller, J.;Meyer, C.;Hawk, H.
通讯作者：
Hawk, H.
影响因子：
4.5
作者：
Degnan JH;Rosenberg NA
通讯作者：
Rosenberg NA
影响因子：
0.9
作者：
Hernandez-Triana, Luis M.;Chaverri, Luis G.;Johnson, Nick
通讯作者：
Johnson, Nick