Hidden diversity within the cosmopolitan species Pseudopolydora antennata (Claparede 1869) (Spionidae: Annelida)
Hidden diversity within the cosmopolitan species Pseudopolydora antennata (Claparede 1869) (Spionidae: Annelida)
复制标题
世界性物种 Pseudopolydora Antennata 中隐藏的多样性（Claparede 1869）（螺科：环节动物）
DOI：
10.1007/s12526-017-0751-y
复制
发表时间：
2018
影响因子：
1.6
通讯作者：
H.
中科院分区：
文献类型：
--
作者：
Simon;A.C.;Sato-Okoshi;W.;Abe;H.
Claparède（Mem Soc Phys Hist Nat热内夫20：1-225，1869）最早描述了触角拟多棘虫（Pseudopolydora antennata），发现于那不勒斯湾（Gulf of Naples）的树木中，但在南非、波斯湾、南澳、日本和加勒比海地区也有记录。这表明该物种要么是世界性分布，要么是外来物种，或者在某些地方代表了形态相似物种的复合体。我们证明，分子分析和形态学检查，这是一个复杂的至少有五个pseudoscryptic种。在南非有两种（Pseudopolydora eriyalin. sp.和Pseudopolydora uphondon. sp.）和日本的2种（Pseudopolydora tsubakin. sp.和日本中东部的假多孔虫Pseudopolydora ushionin. sp.）的核18 S和28 S以及线粒体16 S rRNA基因分析一致证实。形态学观察表明，这4个新种均为拟多棘虫Pseudopolydora hutchingsaen.与欧洲和马歇尔群岛的Pseudopolydora antennata相比，它们在毛体的长度与数量的比值、鳃毛体的数量、口前体和变型刺的形状以及体前背、肉阜、口前体、口缘、腹侧和侧部的甲基绿色染色模式等方面存在差异。
Pseudopolydora antennatawas originally described by Claparède (Mem Soc Phys Hist Nat Geneve 20:1–225, 1869) fromTeredoburrows in wood from the Gulf of Naples, but has also been recorded in South Africa, the Persian Gulf, South Australia, Japan and the Caribbean. This suggests that the species either has a cosmopolitan distribution, is an alien or, in some locations, represents a complex of morphologically similar species. We demonstrate, with molecular analyses and morphological examinations, that this species is a complex of at least five pseudocryptic species. Two species in South Africa (Pseudopolydora eriyalin. sp. in both the cool and the warm temperate bioregions andPseudopolydora uphondon. sp. from the subtropical bioregion) and two in Japan (Pseudopolydora tsubakin. sp. from central east Japan andPseudopolydora ushionin. sp. from southwestern Japan) are consistently confirmed by nuclear 18S and 28S and mitochondrial 16S rRNA gene analyses. Morphological examination demonstrates that these four newly described species andPseudopolydora hutchingsaen. sp. from South Australia differ from each other andPseudopolydora antennatafrom Europe and the Marshall Islands with respect to the ratio of length to number of chaetigers, number of branchiate chaetigers, shapes of prostomium and modified spines, and methyl green staining patterns on the anterior dorsum, caruncle, prostomium, peristomium, and ventral and lateral sides of the body.