Integrative Systematics and Biogeography of the Hydrozoans (Leptothecata: Eirenidae) Eirene menoni Kramp, 1953 and Eirene lacteoides Kubota and Horita, 1992 from Japan and China with Comments on Pacific Ocean Distributions.
Integrative Systematics and Biogeography of the Hydrozoans (Leptothecata: Eirenidae) Eirene menoni Kramp, 1953 and Eirene lacteoides Kubota and Horita, 1992 from Japan and China with Comments on Pacific Ocean Distributions.
复制标题
DOI：
10.6620/zs.2023.62-49
复制
发表时间：
2023
影响因子：
1.6
通讯作者：
Gerald L. Crow;B. Holland;Gaku Yamamoto;Shuhei Ikeda;Aya Adachi;Kelley Niide
中科院分区：
文献类型：
--
作者：
Gerald L. Crow;B. Holland;Gaku Yamamoto;Shuhei Ikeda;Aya Adachi;Kelley Niide
水螅虫科Eirenidae以其形态可塑性和物种识别的挑战而闻名。我们采用了一种基于形态学、分子生物学和生活史证据的综合分类学方法，系统地评估了野外采集的EirenemenoniKramp 1953水母和圈养的EirenemenoniKramp 1953和EirenemenoniKramp 1953水母。menoni和E. lacteoides Kubota and Horita 1992.形态学审查后，我们更新了属的描述，包括在至少8个有效的Eirene种的存在下，在环管的基本灯泡（疣）。我们提出了成熟E. menoni水鞘发育成生殖鞘。然而，这一提议需要进一步研究加以核实。我们提供了来自印度-太平洋的E。menoni，并更新了E.本研究利用细胞色素c氧化酶I（COI）基因序列，对中国黄海和东海的拟乳球藻，以及日本和夏威夷的公众养殖标本进行了分析，并与GenBank中的序列进行了比较。COI基因可靠地将四个物种分开，每个物种形成一个单系分支，具有强的自举支持和分支内的低平均种内分子分歧（≤ 1%）。然而，树的一些较深的节点仍然解决不好，我们的分析未能证明单系Eirenid属Eirene和Tima之间。我们的综合分类方法是必不可少的，在确认物种身份的家庭Eirenidae和属Eirene，我们也确定了一个可能的范围扩大E。产于夏威夷。
The hydrozoan family Eirenidae is known scientifically for its morphological plasticity and challenges in species identification. We used an integrative taxonomic approach based on morphological, molecular and life history evidence to systematically assess field-collected medusae of Eirene menoni Kramp 1953 and captive raised polyps of both E. menoni and E. lacteoides Kubota and Horita 1992. Following morphological review, we updated the genus description to include the presence of rudimentary bulbs (warts) on the ring canal in at least eight of the 24 valid Eirene species. We propose the potential for the mature E. menoni hydrotheca to develop into a gonotheca. However, this proposal will require additional study for verification. We provide validated distribution records from the Indo-Pacific Ocean for E. menoni,and updated collection records for E. lacteoides from the Yellow and East China Seas, and public aquaria-cultured specimens from Japan and Hawaii, using cytochrome c oxidase I (COI) sequences that we generated and compared with those from GenBank. The COI gene reliably separated four species, each forming a monophyletic clade with strong bootstrap support and low mean intraspecific molecular divergences (≤ 1%) within clades. However, some of the deeper nodes of the tree remained poorly resolved, and our analysis failed to demonstrate monophyly among eirenid genera Eirene and Tima. Our integrative taxonomic approach is essential in confirming species identity within the family Eirenidae and genus Eirene,and we have also identified a likely range expansion of E. lacteoides to Hawaii.