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

一系列基于整个线粒体基因组的系统发育研究，Miya＆Nishida，2003年，Miya等人，2003年； Huang＆Lo，1994年，Miya＆Nishida，1999年，NOACK，Zardoya＆Meyer，1996年他们的数据集相互重叠。 OR＆Meyer，2003年。 Markers Ohnson＆Dimmick，2000年）。两个并行的计算系统，今年将完成。