Taxonomy and phylogeny of scalpellomorphan barnacles, Neolepadine collected from the deep-sea hydrothermal vents

从深海热液喷口收集的角形藤壶 Neolepadine 的分类学和系统发育

• 批准号: 14340154
• 负责人: YAMAGUCHI Toshiyuki
• 金额: $ 9.54万
• 依托单位: Chiba University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 2002
• 资助国家: 日本
• 起止时间: 2002 至 2005
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-14340154/
• 关键词: Neolepas; deep-sea hydrothermal vent; taxonomy; phylogenetic evolution; Scalpellomorpha; primitiveness; Indian Ocean; Pacific Ocean; Neoplepas; エボシガイ亜日

The deep-sea hydrothermal and cold-seep endemic barnacle genus "Neolepas" s.l. in Suborder Lepadomorpha (now called suborder Scalpellomorpha) was studied on morphology and molecular biology to clarify taxonomy. Phylogeny. Neolepas s.l. can be classified four genera Neolepas s.s. (East Pacific Ridge), Vulcanolepas (previously called Neolepas, Lau and Havre basins, Southwest Pacific), Ashinkailepas (first cold-seep form, off Hatsushima Is., and hot vent form, Okinawa Trough and Myojin Knoll), and also cold-seep and hot vent forms Leucolepas (Edison seamount and Manus Basin, Sunda Trench and Okinawa Trough) based on morphology and its differences of peduncle and its scales. This morphological taxonomy is supported by the molecular phylogeny of the 12rRNA and 16SrRNA genes in the mitochondrial DNA.Those molecular data are also supported that those four genera compose of a clade and are considered to be monophyletic. In Scalpellomorpha, the following phylogeny was obtained based on molecular biology that genus Ashinkailepas is the most primitive in the four genera, genus Vulcanolepas has derived from genus Ashinkailepas, and then two genera of Leucolepas and Neolepas have derived from genus Vulcanolepas.In genus Ashinkailepas, the Southwest Pacific population collected from the Kermadec Back-arc Basin is the most primitive, and then is evolved to two populations of Okinawa Trough and Myojin Knoll in the Northwest Pacific. This phylogenetic relationship is supported the dispersal from the Southwest to Northwest Pacific in genus Ashinkailepas.The evolutions (1) from Ashinkailepas to Vulcanolepas (Southwest Pacific), (2) from Vulcanolepas to Leucolepas (West Pacific), and (3) from Vulcanolepas to Neolepas (East Pacific and Indian Ocean) are explained to dispersal within Southwest Pacific in case of (1), dispersal from Southwest Pacific to West Pacific in case of (2), and dispersal from Southwest Pacific to East Pacific and Indian Ocean in case of (3).

深海热液冷渗型特有藤壶属Neolepas s.l.从形态和分子生物学两个方面对叶甲亚目进行了研究，以阐明其分类地位。系统发育学。Neolepas s.l.可归为四个属：Neolepas S.S.根据形态及其基脚和规模的不同，可分为新洋脊(东太平洋海脊)、火山(原称新洋盆、刘海盆和哈弗尔海盆，西南太平洋)、阿辛卡莱帕斯(第一冷渗型，在Hatsushimis近海)、热喷口(冲绳海槽和Myojin Knoll)和冷漏和热喷口(爱迪生海山和马努斯盆地、舜他海沟和冲绳海槽)。这种形态分类得到了线粒体DNA中12rRNA和16SrRNA基因的分子系统学支持，这些分子数据也支持这四个属组成一个支系，并被认为是单系进化。根据分子生物学原理，从分子生物学的角度分析，在4个属中，最原始的是八哥属，其次是石首属和新石属。在石首属中，西南太平洋种群是最原始的，并演化为冲绳海槽和西北太平洋的Myojin Knoll两个种群。(1)从Shinkailepas到Vulcanolepas(西南太平洋)，(2)从Vulcanolepas到Leucolepas(西太平洋)，(3)从Vulcanolepas到Neolepas(东太平洋和印度洋)，(1)在西南太平洋内扩散，在(2)从西南太平洋扩散到西太平洋，在(3)从西南太平洋扩散到东太平洋和印度洋。

项目成果

The latest information on barnacle research

藤壶研究的最新信息

• 发表时间: 2006
• 作者: Hirano;R. et al.
• 通讯作者: R. et al.

Natural history of fossil animals -Life on the Earth- For examples of natural history of barnacles. (Introduction of Natural History)

动物化石的自然历史 - 地球上的生命 - 藤壶自然历史的例子。

• 发表时间: 2003
• 作者: Yamaguchi;T.
• 通讯作者: T.

A hydrothermal, cold-seep barnacle (Cirripedia : Neolepadinae) and the age of the vent/seep fauna.

热液冷渗藤壶（Cirripedia：Neolepadinae）和喷口/渗水动物群的年龄。

• 发表时间: 2004
• 期刊: Journal of Marine Biological Association of U.K. 84
• 作者: Yamaguchi;T. et al.
• 通讯作者: T. et al.

Molecular phylogeny of thoracican barnacles based on the mitochondrial 12S and 16S rRNA genes

基于线粒体 12S 和 16S rRNA 基因的胸甲藤壶分子系统发育

• 发表时间: 2004
• 期刊: Sessile Organisms 21・2
• 作者: Rowshan Ara Begum;T.Yamaguchi;S.Watabe
• 通讯作者: S.Watabe

Expedition reveals changes in Lau Basin Hydrothermal System

• DOI: 10.1029/2006eo020001
• 发表时间: 2006-01
• 期刊: Eos, Transactions American Geophysical Union
• 作者: J. Ishibashi;J. Lupton;Toshiyuki Yamaguchi;J. Querellou;T. Nunoura;K. Takai