A mitogenomic perspective on the basal teleostean phylogeny: Resolving higher-level relationships with longer DNA sequences
A mitogenomic perspective on the basal teleostean phylogeny: Resolving higher-level relationships with longer DNA sequences
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DOI：
10.1006/mpev.2001.0970
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发表时间：
2001-08-01
影响因子：
4.1
通讯作者：
Nishida, M
中科院分区：
文献类型：
--
作者：
Inoue, JG;Miya, M;Nishida, M
最近的一项研究表明，线粒体基因组（有丝分裂基因组）数据由连接的蛋白质编码（没有第3密码子位置）和转移RNA（仅茎区）基因的核苷酸序列组成，具有很高的统计支持，再现了预期的硬骨鱼系统发育。我们利用有丝分裂基因组学数据重新研究了5个主要的、基础的远骨动物谱系（Osteoglossomorpha, Elopomorpha, Clupeomorpha， Ostariophysi和Protacanthopterygii，给出了不同的排名）的相互关系，这些数据之前在形态学和分子分析的基础上提出了5种不同的系统发育假设。除了先前确定的来自8个基础硬骨鱼和2个外群的完整线粒体DNA （mtDNA）序列外，我们还确定了有目的选择的2种骨舌鱼（Osteoglossum bicirrhosum和Pantodon buchholzi）的完整线粒体DNA序列（不包括部分控制区），并对数据进行了最大简约和最大似然分析。这两种方法得到的树拓扑结构是一致的，尽管它们不同于之前提出的任何假设。此外，有丝分裂基因组学数据以高统计显著性自信地否定了所有这些假设。(C) 2001学术出版社。
A recent study demonstrated that mitochondrial genomic (mitogenomic) data comprising nucleotide sequences from the concatenated protein-coding (no 3rd codon positions) plus transfer RNA (stem regions only) genes reproduced the expected phylogeny of teleosts with high statistical support. We reexamined the interrelationships of the five major, basal teleostean lineages (Osteoglossomorpha, Elopomorpha, Clupeomorpha, Ostariophysi, and Protacanthopterygii; given various rankings) using mitogenomic data for which five alternative phylogenetic hypotheses have been previously proposed on the basis of both morphological and molecular analyses. In addition to previously determined complete mitochondrial DNA (mtDNA) sequences from eight basal teleosts and two outgroups, we determined the complete mtDNA sequences (excluding a portion of the control region) for two, purposefully chosen species of Osteoglossomorpha (Osteoglossum bicirrhosum and Pantodon buchholzi), and the data were subjected to maximum-parsimony and maximum-likelihood analyses. The resultant tree topologies from the two methods were congruent, although they differed from any of the previously proposed hypotheses. Furthermore, the mitogenomic data confidently rejected all of these hypotheses with high statistical significance. (C) 2001 Academic Press.