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首页> 外文期刊>Journal of genetics >The first complete mitochondrial genome from Bostrychus genus (Bostrychus sinensis) and partitioned Bayesian analysis of Eleotridae fish phylogeny
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The first complete mitochondrial genome from Bostrychus genus (Bostrychus sinensis) and partitioned Bayesian analysis of Eleotridae fish phylogeny

机译：Bostrychus属（Bostrychus sinensis）的第一个完整的线粒体基因组和线虫鱼类系统发育的分区贝叶斯分析

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摘要

To understand the phylogenetic position of Bostrychus sinensis in Eleotridae and the phylogenetic relationships of the family, we determined the nucleotide sequence of the mitochondrial (mt) genome of Bostrychus sinensis. It is the first complete mitochondrial genome sequence of Bostrychus genus. The entire mtDNA sequence was 16508 bp in length with a standard set of 13 protein-coding genes, 22 transfer RNA genes (tRNAs), two ribosomal RNA genes (rRNAs) and a noncoding control region. The mitochondrial genome of B. sinensis had common features with those of other bony fishes with respect to gene arrangement, base composition, and tRNA structures. Phylogenetic hypotheses within Eleotridae fish have been controversial at the genus level. We used the mitochondrial cytochrome b (cytb) gene sequence to examine phylogenetic relationships of Eleotridae by using partitioned Bayesian method. When the specific models and parameter estimates were presumed for partitioning the total data, the harmonic mean -lnL was improved. The phylogenetic analysis supported the monophyly of Hypseleotris and Gobiomorphs. In addition, the Bostrychus were most closely related to Ophiocara, and the Philypnodon is also the sister to Microphlypnus, based on the current datasets. Further, extensive taxonomic sampling and more molecular information are needed to confirm the phylogenetic relationships in Eleotridae.
机译：为了了解香s在线虫中的系统发育位置及其家族的亲缘关系，我们确定了香s线粒体（mt）基因组的核苷酸序列。它是Bostrychus属的第一个完整的线粒体基因组序列。整个mtDNA序列的长度为16508 bp，具有一组标准的13个蛋白质编码基因，22个转移RNA基因（tRNA），两个核糖体RNA基因（rRNA）和一个非编码控制区。就基因排列，碱基组成和tRNA结构而言，中华双歧杆菌的线粒体基因组与其他骨鱼类具有共同的特征。鳞翅目鱼类内的系统发育假说在属水平上一直存在争议。我们使用线粒体细胞色素b（cytb）基因序列，通过分区贝叶斯方法检查了线虫的系统发育关系。当假定使用特定的模型和参数估计来划分总数据时，谐波均值-lnL得到了改善。系统发育分析支持蛇蝎和Gobiomorphs的单性。此外，根据当前数据集，Bostrychus与Ophiocara关系最密切，而Philypnodon也是Microphlypnus的姐妹。此外，需要大量的分类学采样和更多的分子信息来确认线虫的系统发育关系。

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