Pan Hong-Chun, Qian Xiao-Cheng, Li Ping, Li Xiao-Fei, Wang An-Tai
Laboratory of Molecular Evolution and Biodiversity, College of Life Sciences, Anhui Normal University , Wuhu , P.R. China and.
Mitochondrial DNA. 2014 Feb;25(1):44-5. doi: 10.3109/19401736.2013.782017. Epub 2013 May 2.
The complete mitochondrial genome of Chinese green hydra, Hydra sinensis (Hydroida: Hydridae) is a linear molecule of 16,189 bp in length, containing 13 protein-coding genes, small and large subunit ribosomal RNAs, methionine and tryptophan transfer RNAs, a pseudogene consisting of a partial copy of COI and terminal sequences at two ends of the linear mitochondrial DNA. The A + T content of the overall base composition of H-strand is 77.2% (T: 41.7%; C: 10.9%; A: 35.5%; and G: 11.9%). COI and ND1 genes begin with GTG as start codon, while other 11 protein-coding genes start with a typical ATG initiation codon. COII, ATP8, ATP6, COIII, ND5, ND6, ND3, ND1, ND4 and COI genes are terminated with TAA as stop codon, ND4L ends with TAG, ND2 ends with TA and Cyt b ends with T.
中国绿水螅(Hydra sinensis,水螅纲:水螅科)的完整线粒体基因组是一个长度为16,189 bp的线性分子,包含13个蛋白质编码基因、小亚基和大亚基核糖体RNA、甲硫氨酸和色氨酸转运RNA,以及一个由细胞色素氧化酶亚基I(COI)的部分拷贝和线性线粒体DNA两端的末端序列组成的假基因。重链总体碱基组成中A + T含量为77.2%(T:41.7%;C:10.9%;A:35.5%;G:11.9%)。COI和ND1基因以GTG作为起始密码子,而其他11个蛋白质编码基因以典型的ATG起始密码子开始。COII、ATP8、ATP6、COIII、ND5、ND6、ND3、ND1、ND4和COI基因以TAA作为终止密码子,ND4L以TAG结束,ND2以TA结束,细胞色素b以T结束。