基于线粒体DNA序列探讨柔鱼亚科种类系统进化关系
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- 英文论文题名：Study on the phylogenetic relationships within Ommastrephinae based on mitochondrial gene fragments
- 论文作者：任桂静 ; 唐峰华 ; 宋炜 ; 张凤英 ; 蒋科技 ; 马凌波
- 英文论文作者：REN Guijing ; TANG Fenghua ; SONG Wei ; ZHANG Fengying ; JIANG Keji ; MA Lingbo ; Key Laboratory of East China Sea and Oceanic Fishery Resources Exploitation ; Ministry of Agriculture ; East China Sea Fisheries Research Institute ; Chinese Academy of Fishery Sciences
- 年：2016
- 作者机构：农业部东海与远洋渔业资源开发利用重点实验室东海水产研究所中国水产科学研究院;
- 论文关键词：柔鱼亚科 ; 线粒体DNA ; 分类地位 ; 系统进化关系
- 英文论文关键词：Ommastrephinae ; mitochondrial DNA ; taxonomic status ; phylogenetic relationships
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S917.4
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：538k
- 原文格式：D
- 会议级别：全国
摘要
本研究测定了柔鱼亚科(Ommastrephinae)中的柔鱼(Ommastrephes bartramii)、茎柔鱼(Dosidicus gigas)、鸢乌贼(Sthenoteuthis oualaniensis)、发光柔鱼(Eucleoteuthis luminosa)的线粒体COI和16S rRNA基因的部分序列,结合从GenBank中获得的玻璃乌贼(Hyaloteuthis pelagica)、鸟柔鱼(Ornithoteuthis volatilis)、大西洋鸟柔鱼(Ornithoteuthis antillarum)的同源序列,以太平洋褶柔鱼(Todarodes pacificus)、阿根廷滑柔鱼(Illex argentinus)为外群,运用贝叶斯法(BI)构建了分子系统树,同时联合了2个基因片段序列,运用贝叶斯联合模型综合探讨了柔鱼亚科种类的系统发育关系。研究发现除16S rRNA基因外,COI基因片段和联合模型所构建的系统树拓扑结构完全一致,并结合形态学资料,发现玻璃乌贼、发光乌贼和鸢柔鱼亲缘关系较近,且形态上都出现了外套膜大型发光器,是柔鱼亚科中分化较晚的种类;其次茎柔鱼、柔鱼与其它种类存在较大的遗传距离,形态上丢失了内脏和眼球发光器,可能预示着柔鱼亚科种类一个新的进化方向;鸟柔鱼属两个种为柔鱼亚科中最原始种类,且为褶柔鱼亚科向柔鱼亚科进化过程中的过渡物种。
We investigated the phylogenetic relationships of Ommastrephinae through Partitioned Bayesian Analyses with concatenated genes sequences. Fregments of 16 S rRNA and COI gene were sequenced in Ommastrephes bartramii, Dosidicus gigas, Sthenoteuthis oualaniensis,Eucleoteuthis luminosa, and while downloaded homologous sequences of Hyaloteuthis pelagica,Ornithoteuthis volatilis, Ornithoteuthis antillarum from genbank database, and Todarodes pacificus, Illex argentinus as a outgroup. The results showed that: the three species of S.oualaniensis, E. luminosa and H. pelagica which have large mantle photophores, showed a closer affinty to D. gigas and O. bartramii, were the latest species of Ommastrephinae; however,D.gigas and O. bartramii have lost photophores on intestine and eyeball in morphology,suggesting a new direction of evolution of Ommastrephinae.
We investigated the phylogenetic relationships of Ommastrephinae through Partitioned Bayesian Analyses with concatenated genes sequences. Fregments of 16 S rRNA and COI gene were sequenced in Ommastrephes bartramii, Dosidicus gigas, Sthenoteuthis oualaniensis,Eucleoteuthis luminosa, and while downloaded homologous sequences of Hyaloteuthis pelagica,Ornithoteuthis volatilis, Ornithoteuthis antillarum from genbank database, and Todarodes pacificus, Illex argentinus as a outgroup. The results showed that: the three species of S.oualaniensis, E. luminosa and H. pelagica which have large mantle photophores, showed a closer affinty to D. gigas and O. bartramii, were the latest species of Ommastrephinae; however,D.gigas and O. bartramii have lost photophores on intestine and eyeball in morphology,suggesting a new direction of evolution of Ommastrephinae.
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