巨脂鲤（脂鲤目：锯脂鲤科）的完整线粒体基因组序列
The complete mitochondrial genome sequence of Colossoma macropomum (Characiformes: Serrasalmidae).
作者信息
Wu Yu-Peng, Xie Jing-Fang, He Qiu-Sheng, Xie Jian-Lin
机构信息
a College of Environment and Safety, Taiyuan University of Science and Technology , Taiyuan , China and.
b College of Environment and Resource, Shanxi University , Taiyuan , China.
出版信息
Mitochondrial DNA A DNA Mapp Seq Anal. 2016 Nov;27(6):4080-4081. doi: 10.3109/19401736.2014.1003853. Epub 2015 Jan 28.
Colossoma macropomum (Cuvier, 1816) is the largest characin of South America. This species and its congeners mainly feed on zooplankton, insects, snails and decaying plants. In this paper, we sequenced and annotated the complete mitogenome of C. macropomum. The total length is 16,703 bp, and it typically consist of 37 genes, including 13 protein-coding genes, two rRNAs, 22 tRNA, a light-strand replication origin (O) and a large control region (D-loop). The overall base composition is 29.9%, 24.6%, 29.5% and 15.9% for A, T, C and G, respectively, with a slight bias on AT content (54.6%). All protein-coding genes share the start codon ATG, except for COI, which begins with GTG. Most of them have TAA or TAG as the stop codon, except COII, ND4 use AGA and COI, Cytb use an incomplete stop codon T. This information could provide useful molecular data and contribute to further phylogenetic studies of Characiformes and Serrasalmidae.
巨脂鲤（Colossoma macropomum，居维叶，1816年）是南美洲最大的脂鲤科鱼类。该物种及其同属物种主要以浮游动物、昆虫、蜗牛和腐烂植物为食。在本文中，我们对巨脂鲤的完整线粒体基因组进行了测序和注释。其全长为16,703 bp，通常由37个基因组成，包括13个蛋白质编码基因、两个核糖体RNA、22个转运RNA、一个轻链复制起点（O）和一个大的控制区（D环）。碱基总体组成中，A、T、C和G分别占29.9%、24.6%、29.5%和15.9%，AT含量略有偏向（54.6%）。除COI以GTG起始外，所有蛋白质编码基因均以ATG作为起始密码子。它们中的大多数以TAA或TAG作为终止密码子，除COII、ND4使用AGA，以及COI、Cytb使用不完全终止密码子T。这些信息可为进一步开展脂鲤目和锯脂鲤科的系统发育研究提供有用的分子数据。
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