鹿角杯形珊瑚属（刺胞动物门、石珊瑚目、鹿角珊瑚科）的完整线粒体基因组
The complete mitochondrial genomes of Pseudosiderastrea spp (Cnidaria, Scleractinia, Siderastreidae).
作者信息
Chuang Yaoyang, Chen Chaolun Allen
机构信息
a Biodiversity Research Centre, Academia Sinica , Nangang , Taipei , Taiwan.
b Institute of Oceanography, National Taiwan University , Taipei , Taiwan , and.
出版信息
Mitochondrial DNA A DNA Mapp Seq Anal. 2016 Nov;27(6):4065-4066. doi: 10.3109/19401736.2014.1003845. Epub 2015 Jan 28.
The complete mitochondrial genomes of the Indo-Pacific scleractinians, Pseudosiderastrea formosa and P. tayamai, were sequenced. The mitochondrial genomes are 19,475 bp in length for both P. formosa and P. tayamai, representing the longest mitochondrial genome in the complex corals sequenced to date. The overall GC composition (36.3%) and the gene arrangement are similar to those of the other scleractinian corals, including 13 protein-coding genes, 2 rRNA genes (rnl and rns) and 2 tRNA genes (tRNA-Met and tRNA-Trp). All genes, except tRNA-Trp, tRNA-Met, rnl, cox1, and atp8, are engulfed by a large group I intron in the nad5 gene. The second group I intron (970 bp) encoding a putative homing endonuclease is inserted in the cox1 gene, where insertion site is different from those of robust corals. Genes were separated by intergenic spacer regions for a total of 2593 bp, of which the cytb-nad2 region may correspond to the putative control region.
对印度-太平洋造礁石珊瑚美丽拟鹿角珊瑚（Pseudosiderastrea formosa）和玉黍螺拟鹿角珊瑚（P. tayamai）的完整线粒体基因组进行了测序。美丽拟鹿角珊瑚和玉黍螺拟鹿角珊瑚的线粒体基因组长度均为19,475 bp，是迄今为止测序的复杂珊瑚中最长的线粒体基因组。其总体GC含量（36.3%）和基因排列与其他造礁石珊瑚相似，包括13个蛋白质编码基因、2个rRNA基因（rnl和rns）和2个tRNA基因（tRNA-Met和tRNA-Trp）。除tRNA-Trp、tRNA-Met、rnl、cox1和atp8外，所有基因都被nad5基因中的一个大的I组内含子所包围。编码假定归巢内切酶的第二个I组内含子（970 bp）插入到cox1基因中，其插入位点与强壮珊瑚的不同。基因由基因间隔区隔开，间隔区总长2593 bp，其中cytb-nad2区域可能对应于假定的控制区。
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