权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

The analyses of evolutionary factor and rate of marine organisms isolated in marine lakes, Palau Islands

帕劳群岛海洋湖泊中海洋生物的进化因子和分离率分析

基本信息

批准号：
16405012
负责人：
HANZAWA Naoto
金额：
$ 8.58万
依托单位：
Yamagata University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-16405012/
关键词：
Palau Islands marine animals marine lake populations genetic variability protein algae land snails molecular phylogenetic analysis

项目摘要

Although many studies were carried out to clarify "How do marine organisms evolve in the sea?", it was so difficult because extensive gene flow occurs in the sea, such as the case of rabbitfish (Kuriiwa et al., in press). Then, we selected meromictic marine lakes in Palau Islands as the evolutionary model. The lakes were formed by raise of lime stones derived from hard corals approximately 12,000 years ago and have still existed in stable state. If the lakes have been isolated completely, there is the possibility that marine organisms have been isolated and evolved in each lake.We investigated dominant species of fish, bivalves, copepods, jellyfish and algae in the lakes. The fauna and flora in the lakes are quite different from those of the outer sea. Some species of jellyfish and algae are morphologically and ecologically differentiated from their related or same species in the outer sea. Genetic variability of marine lake populations in most species is extremely low, and the each marine lake population was genetically differentiated from the outer sea populations. It suggests that the marine lake populations have suffered strong bottleneck effect and peculiarly evolved in each marine lake since 12,000 years ago. To compare with the evolution of marine lake species, land snails isolated in Palau Islands were also investigated. Many land snail species morphologically differentiated were discovered in each island. It is thought that the most of them were undescribed species and peculiarly speciated in Palau Islands. Thus, it is concluded that complete geographical isolation induces biological evolution for the shorter evolutionary time.

尽管进行了许多研究来阐明“海洋生物如何在海洋中进化？”，但由于在海洋中发生广泛的基因流动，例如兔鱼的情况，这非常困难（Kuriiwa等人，出版中）。然后，我们选择帕劳群岛的半混海湖作为演化模型。这些湖泊是大约 12,000 年前由硬珊瑚中的石灰石升起而形成的，至今仍以稳定的状态存在。如果湖泊完全隔离，那么海洋生物就有可能在各个湖泊中被隔离和进化。我们对湖泊中的鱼类、双壳类、桡足类、水母和藻类等优势种进行了调查。湖泊中的动植物与外海有很大不同。某些水母和藻类物种在形态和生态上与外海中的相关或相同物种有所不同。大多数物种的海洋湖泊种群的遗传变异性极低，并且每个海洋湖泊种群在遗传上都与外海种群不同。这表明，自12000年前以来，海洋湖泊种群就遭受了强烈的瓶颈效应，并且在各个海洋湖泊中都有独特的演化。为了与海洋湖泊物种的进化进行比较，还对在帕劳群岛分离的陆地蜗牛进行了研究。每个岛屿都发现了许多形态差异化的陆生蜗牛物种。据认为，其中大多数是未描述的物种，并且是帕劳群岛特有的物种。因此，可以得出结论，完全的地理隔离导致生物进化时间较短。

项目成果

期刊论文数量（23）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Allozyme and morphometric research of two common mussel species of genus Mitilus(Mollusca, Mytilidae) in Korea, Japan and Russian waters.

韩国、日本和俄罗斯海域两种常见贻贝属（软体动物、贻贝科）同种酶和形态测定研究。

DOI：
发表时间：
2005
期刊：
Kor.J.Genet. 27(4)
影响因子：
0
作者：
Kartavtsev;Y.P.;A.Y.Chichvarkhin;N.V.Gubanova;A.Kijima;N.Hanzawa;I.-S.Park.
通讯作者：
I.-S.Park.

Genetic variability of MHC class IIβ1 genes in Far Eastern dace Tribolodon hakonensis.

远东鲮鱼 Tribolodon hakonensis MHC IIβ1 类基因的遗传变异。

DOI：
发表时间：
2004
期刊：
Mar. Biotech. 6
影响因子：
0
作者：
Egi;N.;Soe Thura Tun;Takai;M.;Shigehara;N.;Tsubamoto;T.;Kasamatsu J. et al.
通讯作者：
Kasamatsu J. et al.

イスパニアマイマイの駆除について

关于消灭西班牙蜗牛

DOI：
发表时间：
2006
期刊：
日本貝類学会研究連絡誌 36(4)
影响因子：
0
作者：
武田正倫;上島励;上島励
通讯作者：
上島励

Mitogenomic evolution and interrelationships of the Cypriniformes (Actynopterygii:Ostariophysi) : The first evidence towards resolution of higher-level relationships of the world's largest fresh- water fish clade based on 59 whole mitogenome sequences.

鲤形目（Actynopterygii：Ostariophys）的线粒体基因组进化和相互关系：基于 59 个完整线粒体基因组序列，第一个解决世界上最大淡水鱼进化枝高级关系的证据。

DOI：
发表时间：
2006
期刊：
J.Molecular Evolution 63
影响因子：
0
作者：
Kuriiwa;K.;N.Hanzawa;T.Yoshino;S.Kimura;M.Nishida;Saitoh K. et al.;Terashima M. et al.;Saitoh K. et al.
通讯作者：
Saitoh K. et al.

The generic delimitation of Rhodella (Porphyridiales, Rhodophyta with emphasis on ultrastucture and molecular phylogeny.

红藻门（Porphyridiales，Rhodophyta）的属属界定，重点是超微结构和分子系统发育。