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

Mitochondrial Genomic Analysis of the Percomorph Fish Phytogenies : Resolving Polytomies Using Large Datasets

Percomorph 鱼类植物发育的线粒体基因组分析：使用大型数据集解决多部分分离问题

基本信息

批准号：
15570090
负责人：
MIYA Masaki
金额：
$ 2.37万
依托单位：
Natural History Museum and Institute, Chiba
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2003
资助国家：
日本
起止时间：
2003 至 2004
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-15570090/
关键词：
large data set mitochondrial genome higher classification molecular phylogeny Bayesian method Actinopterygii polytomy fish

项目摘要

A series of recent molecular phylogenetic studies based on whole mitochondrial genome (mitogenome) sequences (Inoue et al.,2003a, b, 2004 ; Ishiguro, Miya & Nishida,2003 ; Miya et al., 2003 ; Saitoh et al., 2003), however, have shed a new light on our concepts of actinopterygian higher-level relationships. These six mitogenomic studies plus previous pioneering works (Chang, Huang & Lo, 1994 ; Johansen & Bakke, 1996,Miya & Nishida,1999,2000b ; Noack, Zardoya & Meyer,1996 ; Saitoh et al., 2000 ; Tzeng et al., 1992 ; Zardoya, Garrido-Pertierra & Bautista,1995) together sampled all major lineages of actinopterygians at the ordinal level, with their data sets partially overlapping each other. Also they were all based on the same sets of strictly homologous characters, with no potential for paralogous comparisons among sampled genes owing to ancient genome duplication (Martin & Burg,2002) as recently suggested for actinopterygian nuclear genomes (e.g., Taylor et al., 2003 ; Van de Peer, Tayl … More or & Meyer,2003). In addition, it should be noted that the resultant phylogenies were well resolved and many basal clades received high statistical support irrespective of analytical methods (see Simmons & Miya, 2004). Accordingly the whole mitogenome sequences have afforded a new comprehensive perspective on the higher-level relationships of actinopterygians, portions of which have been supported by recent molecular phylogenetic studies based on different markers (Chen, Bonillo & Lecointre,2003 ; Wiley, Johnson & Dimmick,2000). Exception to this is relationships of the Percomorpha, known as "bush at the top of the tree"(Nelson, 1989).In this study, I attempted at resolving relationships of the Percomorpha based on the whole mitochondrial genome sequences. First I successfully demonstrated a phylogenetic position of toadfish (order Batrachoidiformes) using whole mitochondrial genome sequences from 102 actinopterygians (Miya et al., 2005). I am further analyzing large datasets comprising 336 actinopterygians to correctly determine limits of the Percomorpha and resolve their intrarelationships. The analyses have been conducted using two parallel computing systems and will be finished within this year. Less

最近一系列基于全线粒体基因组（mitogenome）序列的分子系统发育研究（Inoue et al.，2003 a，B，2004 ; Ishiguro，Miya & Nishida，2003 ; Miya等人，2003 ; Saitoh等人，2003年），然而，已经阐明了我们的概念，actinopterygian更高层次的关系。这六项有丝分裂基因组学研究加上先前的开创性工作（Chang，Huang & Lo，1994 ; Johansen & Bakke，1996; Miya & Nishida，1999，2000 b; Noack，Zardoya & Meyer，1996 ; Saitoh等人，2000 ; Tzeng等人，一九九二年; Zardoya，Garrido-Pertierra & Bautista，1995）在序数水平上对所有主要的放线菌谱系进行了采样，他们的数据集彼此部分重叠。此外，它们都是基于相同的严格同源特征集，由于古代基因组复制（Martin &布尔格，2002），如最近对放线翼龙核基因组的建议（例如，Taylor等人，2003 ;货车de Peer，Tayl ...更多信息或& Meyer，2003）。此外，应该指出的是，由此产生的同源性得到了很好的解决，许多基础分支得到了很高的统计支持，无论分析方法（见西蒙斯和米娅，2004年）。因此，整个有丝分裂基因组序列为放线菌的更高层次关系提供了一个新的全面视角，其中部分已得到基于不同标记的最新分子系统发育研究的支持（Chen，Bonillo & Lecointre，2003 ; Wiley，约翰逊& Dimmick，2000）。Percomorpha的亲缘关系被称为“树顶的灌木”（纳尔逊，1989）。首先，我使用来自102种放线菌的全线粒体基因组序列成功地证明了蟾鱼（蟾形目）的系统发育位置（Miya等人，2005年）。我正在进一步分析包括336个放线菌的大型数据集，以正确确定Percomorpha的限制并解决它们的内部关系。有关分析是利用两个并行电脑系统进行，并将于今年内完成。少