Hungry scale worms: Phylogenetics of Peinaleopolynoe (Polynoidae, Annelida), with four new species
Hungry scale worms: Phylogenetics of Peinaleopolynoe (Polynoidae, Annelida), with four new species
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DOI：
10.3897/zookeys.932.48532
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发表时间：
2020-05-12
期刊：
影响因子：
1.3
通讯作者：
Rouse, Greg W.
中科院分区：
文献类型：
--
作者：
Hatch, Avery S.;Liew, Haebin;Rouse, Greg W.
Polynoidae Kinberg，1856有五个鳃类属：Branchipolynoe Pettibone，1984，Branchinotogluma Pettibone，1985，Branchiplicatus Pettibone，1985，Peinaleopolynoe Desbruyeres & Laubier，1988，and Thermopolynoe Miura，1994，所有这些都原产于深海，以化学合成为基础的栖息地。其中，Peinaleopolynoe有两个被接受的物种：Peinaleopolynoe sillardi Desbruyercs & Laubier，1988年（大西洋）和Peinaleopolynoe santacatalina Pettibone，1993年（东太平洋）。本研究的目的是评估Peinaleopolynoe的系统发育位置，利用DNA序列从深海polynoids的广泛采样。所有五个鳃类属的代表都包括在内，其中几个种是从模式产地附近取样的; Branchinotoluma sandersi Pettibone，1985年来自加拉帕戈斯裂谷（E/V“Nautilus”）; Peinaleopolynoe sillardi，来自大西洋的有机遗骸; Peinaleopolynoe santacatalina从一个鲸鱼瀑布关闭南加州（R/V“Western Flyer”）和Thermopolynoe branchiata Miura，1994年来自西太平洋Lau弧后盆地（R/V“梅尔维尔”）。使用线粒体（COI、16 S rRNA和CytB）和核（18 S rRNA、28 S rRNA和H3）基因进行系统发育分析。这些分析揭示了来自太平洋的四个新的Peinaleopolynoe物种，在这里正式描述：Peinaleopolynoe Aprilae Hatch & Rouse，sp. nov.，模式产地：墨西哥加州湾的佩斯卡德罗盆地（R/V“Western Flyer”）; Peinaleopolynoe elvisi Hatch & Rouse，sp. nov.和Peinaleopolynoe goffirstoeHatch & Rouse，sp. nov.，模式产地均在加州外的蒙特雷峡谷（R/V“西部飞行者”）和来自哥斯达黎加甲烷渗漏的Peinaleopolynoe mineoi Hatch & Rouse，sp. nov.（R/V“Falkor”）。除了DNA序列的数据，单系的Peinaleopolynoe是支持存在的腹乳头节12-15。结果还证实了Branchinotogluma和Lanconotopodium Pettibone，1983的亲缘关系，并指出这两个属的分类学研究尚需修订。我们申请亚科名称Lampionotopodinae Pettibone 1983，为由Branchipolynoe，Branchinotogluma，Bathykurila，Branchiplicatus，Lampionotopodium，Levensteiniella Pettibone，1985，Thermopolynoe和Peinaleopolynoe组成的Glade。
Polynoidae Kinberg, 1856 has five branchiate genera: Branchipolynoe Pettibone, 1984, Branchinotogluma Pettibone, 1985, Branchiplicatus Pettibone, 1985, Peinaleopolynoe Desbruyeres & Laubier, 1988, and Thermopolynoe Miura, 1994, all native to deep-sea, chemosynthetic-based habitats. Of these, Peinaleopolynoe has two accepted species; Peinaleopolynoe sillardi Desbruyercs & Laubier, 1988 (Atlantic Ocean) and Peinaleopolynoe santacatalina Pettibone, 1993 (East Pacific Ocean). The goal of this study was to assess the phylogenetic position of Peinaleopolynoe, utilizing DNA sequences from a broad sampling of deep-sea polynoids. Representatives from all five branchiate genera were included, several species of which were sampled from near the type localities; Branchinotogluma sandersi Pettibone, 1985 from the Galapagos Rift (E/V "Nautilus"); Peinaleopolynoe sillardi from organic remains in the Atlantic Ocean; Peinaleopolynoe santacatalina from a whalefall off southern California (R/V "Western Flyer") and Thermopolynoe branchiata Miura, 1994 from Lau Back-Arc Basin in the western Pacific (R/V "Melville"). Phylogenetic analyses were conducted using mitochondrial (COI, 16S rRNA,and CytB) and nuclear (18S rRNA, 28S rRNA, and H3) genes. The analyses revealed four new Peinaleopolynoe species from the Pacific Ocean that are formally described here: Peinaleopolynoe orphanae Hatch & Rouse, sp. nov., type locality Pescadero Basin in the Gulf of California, Mexico (R/V "Western Flyer"); Peinaleopolynoe elvisi Hatch & Rouse, sp. nov. and Peinaleopolynoe goffirdiae Hatch & Rouse, sp. nov., both with a type locality in Monterey Canyon off California (R/V "Western Flyer") and Peinaleopolynoe mineoi Hatch & Rouse, sp. nov. from Costa Rica methane seeps (R/V "Falkor"). In addition to DNA sequence data, the monophyly of Peinaleopolynoe is supported by the presence of ventral papillae on segments 12-15. The results also demonstrated the para-phyly of Branchinotogluma and Lepidonotopodium Pettibone, 1983 and taxonomic revision of these genera is required. We apply the subfamily name Lepidonotopodinae Pettibone 1983, for the Glade comprised of Branchipolynoe, Branchinotogluma, Bathykurila, Branchiplicatus, Lepidonotopodium, Levensteiniella Pettibone, 1985, Thermopolynoe, and Peinaleopolynoe.