The complete mitochondrial genome of the Hawaiian anchialine shrimp Halocaridina rubra Holthuis, 1963 (Crustacea: Decapoda: Atyidae)
The complete mitochondrial genome of the Hawaiian anchialine shrimp Halocaridina rubra Holthuis, 1963 (Crustacea: Decapoda: Atyidae)
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DOI：
10.1016/j.gene.2007.01.009
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发表时间：
2007-06-01
期刊：
影响因子：
3.5
通讯作者：
Santos, Scott R.
中科院分区：
文献类型：
--
作者：
Ivey, Jennifer L.;Santos, Scott R.
虾科虾是世界上几乎所有热带(和最温带)淡水和咸水生态系统的重要成员。到目前为止，这个重要的甲壳类动物的完整线粒体基因组还没有报道。在这里，我们提出了完整的线粒体DNA序列的夏威夷atyid Halcaridina rubra[霍尔萨伊斯，L.B.，1963。来自热带内陆咸水池的红色虾(十足纲，加勒比纲)。祖尔。已就诊16,261-279。](甲壳纲：十足目：足甲科)。基因组是一个16065bp的环状分子，编码后生动物中常见的37个线粒体基因(13个蛋白质编码基因，22个tRNAs和2个rRNAs)。红毛虫线粒体基因组中的基因顺序和方向与迄今为止已检测到的大多数软体软体动物是同线的。特别值得注意的是，从tRNA(Tyr)中缺失了二氢尿苷(Dhu)臂，并使用CCG作为细胞色素氧化酶亚基I(COI)的起始密码子；这些是在软甲中首次报道这种现象的例子。利用其他软体动物的完整线粒体序列进行的系统发育分析表明，鲁氏沼虾是罗氏沼虾的姊妹种，罗氏沼虾也属于下目Caridea。然而，这一亚目以及树臂亚目在十足纲系统发育中的位置因外群选择而异。来自其他线粒体基因组的数据，例如像狭脚类这样的基本十足类动物，应该有助于更好地全面了解十足类动物的系统发育。(C)2007 Elsevier B.V.保留所有权利。
Shrimp of the family Atyidae are important members of nearly all tropical (and most temperate) fresh and brackish water ecosystems in the world. To date, a complete mitochondrial genome from this important crustacean group has not been reported. Here, we present the complete mitochondrial DNA sequence of the Hawaiian atyid Halocaridina rubra [Holthuis, L.B., 1963. On red coloured shrimps (Decapoda, Caridea) from tropical land-locked saltwater pools. Zool. Meded.16, 261-279.] (Crustacea: Decapoda: Atyidae). The genome is a circular molecule of 16,065 bp and encodes the 37 mitochondrial genes (13 protein-coding, 22 tRNAs, and two rRNAs) typically found in the metazoa. Gene order and orientation in the H. rubra mitochondrial genome is syntenic with most malacostracans that have been examined to date. Of special note is the absence of the dihydrouridine (DHU) arm stem from tRNA(Tyr) and the use of CCG as an initiation codon for cytochrome oxidase subunit I (COI); these represent the first reported examples of such phenomena in the Malacostraca. Phylogenetic analyses utilizing complete mitochondrial sequences from other malacostracans place H. rubra as sister to Macrobrachium rosenbergii, which also belongs to the Infraorder Caridea. However, the placement of this infraorder, as well as the Infraorder Dendrobrachiata, in the phylogeny of the Decapoda varied depending on outgroup selection. Data from additional mitochondrial genomes, such as basal decapods like the Stenopodidea, should contribute to a better overall understanding of decapod phylogenetics. (C) 2007 Elsevier B.V. All rights reserved.