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一种在南大西洋寄生于牛骨的新物种（环节动物门，多毛纲，西伯加林科）的描述。

Description of a new (Annelida, Polychaeta, Siboglinidae) species colonizing cow bones in the South Atlantic Ocean.

作者信息

Gularte Thammy, Sumida Paulo Y G, Bergamo Gilberto, Rouse Greg W

机构信息

Biological Oceanography Department, Oceanographic Institute - University of São Paulo, Praça do Oceanográfico, 191, 05508-120, São Paulo, SP, Brazil University of São Paulo São Paulo Brazil.

Scripps Institution of Oceanography, UC San Diego, La Jolla CA, 92093-0202, USA Scripps Institution of Oceanography La Jolla United States of America.

出版信息

Zookeys. 2024 Dec 3;1219:215-231. doi: 10.3897/zookeys.1219.134005. eCollection 2024.

DOI:10.3897/zookeys.1219.134005
PMID:39665071
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11632350/
Abstract

A new species of is described here using molecular and morphological data. It was found at the depth of 550 m off the Brazilian coast through experimental deployment of cow bones. is the second species from the Southwest Atlantic Ocean and had been previously reported as 'BioSuOr-4'. Phylogenetic analysis of five concatenated genetic makers (28S rDNA, Histone H3, 18S rDNA, 16S rDNA, and cytochrome c oxidase I) placed within a well-supported Clade V, nested within a clade of Pacific Ocean though with poor support. The minimum interspecific COI distance between and another known was 13.92% (closest to 'sagami-3'). The maximum intraspecific COI diversity (uncorrected) within sampled here was 2.44% and population structure was visualized via haplotype network analysis. Morphologically, is characterized by its reddish orange crown of palps and a ventral yellowish collar on the anterior trunk where it meets the base of the crown. shares features with other Clade V species, notably pinnules inserted on the outer margin of palps. Additionally, the presence of dwarf males within the tube lumen of females was documented. Further sampling and research in the Southern Hemisphere are needed to understand the diversity and biogeography of across the world's oceans.

摘要

本文利用分子和形态学数据描述了一个新物种。通过在巴西海岸外550米深处进行牛骨的实验性投放，发现了该物种。这是西南大西洋的第二个该物种，此前曾被报道为“BioSuOr - 4”。对五个串联基因标记（28S rDNA、组蛋白H3、18S rDNA、16S rDNA和细胞色素c氧化酶I）进行系统发育分析，结果将该物种置于得到有力支持的进化枝V内，该进化枝嵌套在太平洋物种的一个进化枝中，不过支持度较低。该物种与另一个已知物种之间的种间COI最小距离为13.92%（最接近“sagami - 3”）。在这里采样的该物种内的最大种内COI多样性（未校正）为2.44%，并通过单倍型网络分析直观呈现了种群结构。在形态上，该物种的特征是其触须呈红橙色冠，在前躯干与冠基部相接处有一条腹侧淡黄色颈环。该物种与进化枝V的其他物种有共同特征，特别是触须外缘有小羽片。此外，还记录到雌性的管腔内存在矮雄。需要在南半球进行进一步采样和研究，以了解该物种在全球海洋中的多样性和生物地理学。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/11d6fa5aabae/zookeys-1219-215_article-134005__-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/a49598a85db6/zookeys-1219-215_article-134005__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/6e9f9e3cb103/zookeys-1219-215_article-134005__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/6aad132ee0ca/zookeys-1219-215_article-134005__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/f1e7e4f6cf6a/zookeys-1219-215_article-134005__-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/33472d0a07b5/zookeys-1219-215_article-134005__-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/f1f72b1d74f0/zookeys-1219-215_article-134005__-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/11d6fa5aabae/zookeys-1219-215_article-134005__-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/a49598a85db6/zookeys-1219-215_article-134005__-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/6e9f9e3cb103/zookeys-1219-215_article-134005__-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/6aad132ee0ca/zookeys-1219-215_article-134005__-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/f1e7e4f6cf6a/zookeys-1219-215_article-134005__-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/33472d0a07b5/zookeys-1219-215_article-134005__-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/f1f72b1d74f0/zookeys-1219-215_article-134005__-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/8bbf/11632350/11d6fa5aabae/zookeys-1219-215_article-134005__-g007.jpg

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本文引用的文献

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Alligators in the abyss: The first experimental reptilian food fall in the deep ocean.深渊中的鳄鱼：深海中首次进行的实验性爬行动物食物投放。
PLoS One. 2019 Dec 20;14(12):e0225345. doi: 10.1371/journal.pone.0225345. eCollection 2019.
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ModelTest-NG: A New and Scalable Tool for the Selection of DNA and Protein Evolutionary Models.
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New species of bone-eating worm from the abyssal South Atlantic Ocean (Annelida, Siboglinidae).来自南大西洋深渊的食骨蠕虫新物种（环节动物门，西伯加林科）。
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